MD Nazmul Haque Mondol

I. Book chapters

• Mondol, N. H., 2015. Well Logging: Principles, Applications and Uncertainties. K. Bjørlykke (ed.), Petroleum Geoscience: From Sedimentary Environments to Rock Physics, DOI 10.1007/978-3-642-34132-8_16, Springer‒Verlag Berlin Heidelberg.
• Mondol, N. H., 2010. Seismic Exploration. K. Bjørlykke (ed.), Petroleum Geoscience: From Sedimentary Environments to Rock Physics, p. 375-402, DOI 10.1007/978-3-642-02332-3_17, Springer-Verlag Berlin Heidelberg.
• Bjørlykke, K., Høeg, K., and Mondol, N. H., 2010. Introduction to Geomechanics: Stress and Strain in Sedimentary Basins. K. Bjørlykke (ed.), Petroleum Geoscience: From Sedimentary Environments to Rock Physics, p. 282-298, DOI 10.1007/978-3-642-02332-3_11, Springer-Verlag Berlin Heidelberg.

II. Full papers and extended abstracts

• Yenwongfai, H.D., Mondol, N.H., Faleide, J.I., and Lecomte, I. 2016. Prestack inversion for porosity, shale volume and sand probability in the Havert Formation of the Goliat field, SW Barents Sea. SEG Expanded Abstract, Dallas, USA.
• Zadeh, M.K., Mondol, N.H., and Jahren, J. 2016. Compaction and rock properties of Mesozoic and Cenozoic mudstones and shales, northern North Sea, Marine and Petroleum Geology, 76, 344-361.
• Baig. I., Faleide, J.I., Jahren, J., and Mondol, N.H. 2016. Cenozoic exhumation on the southwestern Barents Shelf: Estimates and uncertainties constrained from compaction and thermal maturity analyses, Marine and Petroleum Geology, 73, 105-130.
• Moghadam, J.N., Mondol, N.H., Aagaard, P., and Hellevang, H. 2016. Experimental investigation of seismic velocity behavior of CO2 saturated sandstones under varying temperature and pressure conditions. Greenhouse Gases Science and Technology, DOI: 10.1002/ghg.1603.
• Yenwongfai, H.D., Mondol, N.H., Lecomte, I., and Faleide, J.I., 2016. Prestack simultaneous inversion to predict lithology in the Realgrunnen Subgroup of the Goliat field, SW Barents Sea, EAGE Extended Abstract, We LHR3 03, DOI: 10.3997/2214-4609.201600964, 78th EAGE Conference & Exhibition incorporating SPE EUROPEC, 30 May‒2 June 2016, Vienna, Austria.
• Zadeh, M.K., Mondol, N.H., and Jahren, J. 2016. Experimental mechanical compaction of sands and sand–clay mixtures: a study to investigate evolution of rock properties with full control on mineralogy and rock texture, Geophysical Prospecting, DOI: 10.1111/1365-2478.12399.
• Nooraiepour, M., and Mondol, N.H., 2016. Petrophysical and acoustic properties of mechanically compacted shales- Evaluating two Barents Sea top seal sequences, EAGE Extended Abstract, We STZ0 01, DOI: 10.3997/2214-4609.201601220, 78th EAGE Conference & Exhibition incorporating SPE EUROPEC, 30 May‒2 June 2016, Vienna, Austria.
• Kalani, M., Zadeh, M.K., Jahren, J., Mondol, N.H., and Faleide, J.I. 2015. Effect of diagenesis on pore pressures in fine-grained rocks in-the Egersund Basin, Central North Sea. Norwegian Journal of Geology, 95, 171-189.
• Kalani, M., Jahren, J., Mondol, N.H., and Faleide, J.I. 2015. Compaction processes and rock properties in uplifted clay dominated units-the Egersund Basin, Norwegian North Sea. Marine and Petroleum Geology, 68, 596-613.
• Soldal, M., Park, J., Lamech, L.O., Tran. T., Sauvin, G., Johnsen, Ø, Mondol, N.H. 2015. Geophysical monitoring of CO2 flow during sandstone flooding experiments, EAGE Extended Abstract, RP11, DOI: 10.3997/2214-4609.201414395, Third EAGE Workshop on Rock Physics, 15‒18 November 2015, Istanbul, Turkey.
• Zadeh, M.K., Ogebule, O.Y., Mondol, N.H., Jahren, J., and Faleide, J.I. 2015. A laboratory study to investigate velocity anisotropy of an oaganic-rich shale, Central North Sea, Offshore Norway, EAGE Extended Abstract, RP16, DOI: 10.3997/2214-4609.201414399, Third EAGE Workshop on Rock Physics, 15‒18 November 2015, Istanbul, Turkey.
• Kalani, M., Jahren, J., Mondol, N.H., and Faleide, J.I. 2015. Petrophysical implication of source rock microfracturing. International Journal of Coal Geology, 143, 43-67.
• Ogebule, O.Y., Mondol, N.H., and Jahren, J. 2015. Seal Integrity of Late Jurassic to Early Cretaceous Mudrocks of the South-Western Barents Sea Area, EAGE Extended Abstract, Th N110 01, DOI: 10.3997/2214-4609.201413266, 77th EAGE Conference & Exhibition incorporating SPE EUROPEC, 1‒4 June 2014, Madrid, Spain.
• Zadeh, M.K., Mondol, N.H., and Jahren, J. 2015. Velocity-porosity Evolution of Mechanically Compacted Brine-saturated Sand-clay Mixtures, EAGE Extended Abstract, We N106 10, DOI: 10.3997/2214-4609.201412945, 77th EAGE Conference & Exhibition incorporating SPE EUROPEC, 1‒4 June 2014, Madrid, Spain.
• Abbas, M., Bohloli, B., Mondol, N.H., and Grande, L. 2015. Brazilian Tensile Strength Test - Post-failure Behavior of Jurassic and Cretaceous Shales from Svalbard, EAGE Extended Abstract, Tu N116 10, DOI: 10.3997/2214-4609.201412710, 77th EAGE Conference & Exhibition incorporating SPE EUROPEC, 1‒4 June 2014, Madrid, Spain.
• Skurtveit, E., Grande, L., Ogebule, O.Y., Gabrielsen, R.H., Faleide, J.I, Mondol, N.H., Maurer, R., and Horsrud, P. 2015. Mechanical testing and sealing capacity of the Upper Jurassic Draupne Formation North Sea. ARMA paper 15-331, 49th U. S. Rock Mechanics, Geomechanics Symposium, 28 June‒1 July 2015, San Francisco, California, USA.
• Mondol, N.H. 2015. Experimental compaction of dry smectite-silt mixtures, 3rd Internation Workshop on Rock Physics, 13-17 April 2015, Perth, Australia. Page 3 of 9.
• Grande, L., Soldal, M., and Mondol, N.H. 2015. Dynamic to static relationships of shear modulus for sand and sandstones, 3rd Internation Workshop on Rock Physics, 13-17 April 2015, Perth, Australia.
• Soldal, M., Omolo, L.O., Tran, T., Johnsen, Ø., Mondol, N.H., Viken, I., Grande, L., and Park, J. 2015. CO2 flooding experiment of reservoir sandstones-monitoring changes in acoustic and electric properties, 3rd Internation Workshop on Rock Physics, 13-17 April
• Ogebule, O.Y., Mondol, N.H., and Jahren, J., 2014. Cementation, mineralogical, fluid and textural influence on petrophysical and acoustic properties of Stø reservoir sands. EAGE Extended Abstract, EarthDoc Tu P11 10, 76^th EAGE Conference & Exhibition incorporating SPE EUROPEC, 16-19 June 2014, Amsterdam, Netherlands.
• Moghadam, J.N., Mondol, N.H., Hellevang, H., Johnsen, Ø., Aagaard, P., 2014. Seismic response of CO2 saturated Red Wildmoor Sandstone under varying temperatures and pressures. EAGE Extended Abstract, EarthDoc Tu G107,15, 76^th EAGE Conference & Exhibition incorporating SPE EUROPEC, 16-19 June 2014, Amsterdam, Netherlands.
• Narongsirikul, S., Mondol, N.H., and Jahren, J., 2014. Anisotropy of unconsolidated sands and its relation to induced stress response. EAGE Extended Abstract, EarthDoc Tu P11 16, 76^th EAGE Conference & Exhibition incorporating SPE EUROPEC, 16-19 June 2014, Amsterdam, Netherlands.
• Johnsen, Ø., Soldal, M., Park, J., Mondol, N.H., and Alemu, B., 2014. Resistivity and Ultrasonic Velocity Measurements During CO2-brine Drainage and Imbibition. EAGE Extended Abstract, EarthDoc C02. Fourth EAGE CO2 Geological Storage Workshop on demonstrating storage integrity and building confidence in CCS, 22-24 April 2014, Stavanger, Norway.
• Zadeh, M.K., Mondol, N.H., and Jahren, J., 2014. Compaction and rock properties properties of Cenozoic mudstones in the Quadrant 15, offshore Norway. EAGE Extended Abstract, Tu 06, Fourth EAGE Shales Workshop, Shales: What do they have in common? 6-9 April 2014, Porto, Portugal.
• Narongsirikul, S., Mondol, N.H., and Jahren, J., 2013. Depletion-induced Reservoir Compaction in Shallow Overconsolidated Reservoir. EAGE Extended Abstract, We01 05, EAGE Workshop on Geomechanics and Energy-The Ground as Energy Source and Storage, Lausanne, Switzerland.
• Narongsirikul, S., Mondol, N.H., and Jahren, J., 2013. Possible application of friable sand model for shallow mechanically compacted overconsolidated sands. SEG Expanded Abstract, v.32, p. 2701-2706, Houston, USA.
• Grande, L., and Mondol, N.H., 2013. Geomechanical, hydraulic and seismic properties of unconsolidated sediments and their applications to shallow reservoirs. ARMA paper 13-536, 47^th U. S. Rock Mechanics, Geomechanics Symposium, 23-26b June 2013, San Francisco, California, USA.
• Narongsirikul, S., Mondol, N.H., and Jahren, J., 2013. Acoustic, electric and petrophysical properties of mechanically compacted sands of varying mineralogy-simulating the effects of uplift on rock properties. Second International Workshop on Rock Physics, 4-9 August 2013, Southampton, UK.
• Narongsirikul, S., Mondol, N.H., and Jahren, J., 2013. Density/porosity versus velocity of overconsolidated sands derived from experimental compaction. EAGE Extended Abstract, EarthDoc, We 06 10, 75^th EAGE Conference & Exhibition incorporating SPE EUROPEC, 10-13 June 2013, London, UK.
• Moyano, B., Spikes, K.T., Johansen, T.A., and Mondol, N.H., 2012. Modeling compaction effects on the elastic properties of clay-water composites. Geophysics, v. 77 (5), p. D171-D183.
• Mondol, N.H., 2012. Velocity anisotropy in experimentally compacted clay-silt and clay-clay mixtures. SEG Lag Vags Annual Meeting 2012, v. 31, p. 1-5.
• Ndingwan, A.O., Mondol, N.H., and Jahren, J., 2012. Impact of mechanical and chemical compaction and tectonic uplift on acoustic properties of Barents Sea Shales. EAGE Extended Abstract, EarthDoc, A02, Third EAGE Shale Workshop, Shale Physics and Shale Chemistry: New Plays, New Science, New Possibilities, 23-25 January 2012, Barcelona, Spain.
• Moghadam, J.N., Mondol, N.H., and Aagaard, P., 2012. Evaluation of mechanical strength of a Barents Sea Shale by applying the most common failure Criterial. EAGE Extended Abstract, EarthDoc, B07, Third EAGE Shale Workshop, Shale Physics and Shale Chemistry: New Plays, New Science, New Possibilities, 23-25 January 2012, Barcelona, Spain.
• Fawad, M., Mondol, N. H., Jahren, J., and Bjørlykke, K., 2011. Mechanical compaction and ultrasonic velocity of sands with different texture and mineralogical compositions. Geophysical Prospecting, v. 59 (4), p. 697-720.
• Mondol, N.H., Jahren, J., Berre, T., Grande, L and Bjørlykke, K., 2011. Permeability anisotropy in syntentic mudstones – An experimental study. EAGE Extended Abstract, EarthDoc, D030, 73^rd EAGE Conference & Exhibition incorporating SPE EUROPEC, 23-26 May 2011, Vienna, Austria.
• Grande, L., Mondol, N.H., and Berre, T., K., 2011. Horizontal stress development in fine-grained sediments and mudstones during compaction and uplift. EAGE Extended Abstract, EarthDoc, P372, 73^rd EAGE Conference & Exhibition incorporating SPE EUROPEC, 23-26 May 2011, Vienna, Austria.
• Mondol, N. H., Avseth, P., Fawad, M., and Smith, T., 2010. Vs prediction in unconsolidated sands: Physical and Geological controlls on shear wave velocity. EAGE Expanded Abstract, P351, 72^nd EAGE Conference & Exhibition incorporating SPE EUROPEC, 14-17 June 2010, Barcelona, Spain.
• Fawad, M., Mondol, N. H., Jahren, J., and Bjørlykke, K, 2010. Seismic velocities from experimental compaction: New porosity and velocity-depth relations for sands with different textural and mineralogical compositions. SEG Expanded Abstract, v. 29, p. 2480-2485.
• Fawad, M., Mondol, N. H., Jahren, J., and Bjørlykke, K., 2010. Experimental compaction of two sands-Biot coefficient in mechanically compacted sand aggregares, First Break, v. 28 (10), p. 53-59.
• Mondol, N. H., Grande, L., Aker, E., Berre, T., Ørbech, T., Duffaut, K., Jahren, J., and Bjørlykke, K., 2010. Velocity anisotropy of a shallow mudstone core. EAGE Extended Abstract, EarthDoc, C03, EAGE Shale Workshop: Shale-Resource & Challenge, 26-28 April 2010, Nice, France.
• Marcussen, Ø., Maast, T. E., Mondol, N. H., Jahren, J., and Bjørlykke, K., 2010. Changes in physical properties of a reservoir sandstone as a function of burial depth – the Etive Formation, Northern North Sea. Marine and Petroleum Geology, 27, 1725-1735, doi:10.1016/j.marpetgeo.2009.11.007.
• Fawad, M., Mondol, N. H., Bjørlykke, K., and Jahren, J., 2010. Microfabric and rock properties of experimentally compressed silt-clay mixtures. Marine and Petroleum Geology, 27, 1698-1712, doi:10.1016/j.marpetgeo.2009.10.002.
• Mondol, N. H., 2009. Porosity and permeability development in mechanically compacted silt-clay mixtures. SEG Expanded Abstract, v. 28, p. 2139-2143.
• Mondol, N. H., Fawad, M., Grande, L., Jahren, J., and Bjørlykke, K., 2009. V_S estimation in mudrocks – Implications about mineralogy and grain size. EAGE Extended Abstract, Z012, 71^st EAGE Conference & Exhibition incorporating SPE EUROPEC, 8-11 June 2009, Amsterdam, Netherlands.
• Voltolini, M., Wenk, R-H., Mondol, N. H., Bjørlykke, K., and Jahren, J., 2009. Anisotropy of experimentally compressed kaolinite-illite-quartz mixtures. Geophysics, 74 (1), p. D13-D23.
• Mondol, N. H., Fawad, M., Jahren, J., and Bjørlykke, K., 2008. Synthetic mudstone compaction trends and their use in pore pressure prediction. First Break, v. 26 (12), p. 43-51.
• Mondol, N. H., Bjørlykke, K., and Jahren, J., 2008. Experimental Compaction of Kaolinite Aggregates: Effect of Grain Size on Mudrock Properties. EAGE Extended Abstract, I037, 70^th EAGE Conference & Exhibition incorporating SPE EUROPEC, 9-12 June 2008, Rome, Italy.
• Mondol, N. H., Bjørlykke, K., and Jahren, J., 2008. Experimental compaction of clays - Relationship between permeability and petrophysical properties of mudstones. Petroleum Geoscience, v. 14, p. 319-337.
• Mondol, N. H., Jahren, J., Bjørlykke, K., & Brevik, I., 2008. Elastic Properties of Clay Minerals. The Leading Edge, v.27 (6), p.758-770.
• Mondol, N. H., Bjørlykke, K., Jahren, J and Høeg, K. 2007. Experimental mechanical compaction of clay mineral aggregates─Changes in physical properties of mudstones during burial. Marine and Petroleum Geology, v.24 (5), p.289-311.
• Storvoll, V., Bjørlykke, K., and Mondol, N. H., 2005, Velocity-depth trends in Mesozoic and Cenozoic sediments from the Norwegian Shelf, AAPG Bulletin, v.89, (3), p.359-381.

III. Conference proceedings and invited talks

• Mondol, N.H., 2013. Velocity anisotropy of a shallow, well characterized shale core. SEG post-conventional workshop (W-12) on “Integration of petrophysics, rock physics and lab measurements”, September 27, Houston, Texas, USA.
• Johnsen, Ø., Grande, L., Havstad, G., Iwe, H., Mondol, N.H., Soldal, M., Viken, I., and Berre, T., 2013. Integrated geo-mechanics and rock physics: experimental setup and procedures for mechanical and acoustic velocity characterization of anisotropy. Workshop on Rock Physics methods for determining mechanical properties, 47th US Rock Mechanics, Geomechanics Symposium, 23-26 June 2013, San Fanscisco, Calofirnia, USA.
• Ogebule, O.Y., Jahren, J., and Mondol, N.H., 2013. Relationship between compaction, textural variation, cementation and intergranular rock volume in sandstones of the SW Barents Sea. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Zadeh, M.K.S., Mondol, N.H., and Jahren, J., 2014. Experimental mechanical compaction of sand-clay mixtures: Implication of experimental data to validate applicability of friable sand model. SEG Expanded Abstract, v.33, p. 3035-3039, DOI: 10.1190/segam2014-1519.1, Denver, USA.
• Narongsirikul, S., Mondol, N.H., and Jahren, j., 2013. Experimental insight into uplift effects on seismic velocities and petrophysical properties of sandstones: Implication for the Barents Sea area. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Zadeh, M.K., Mondol, N.H., and Jahren, J., 2013. Compaction and rock properties evaluation in southern Viking Graben. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Kalani, M., Jahren, J., Mondol, N.H., and Faleide, J.I., 2013. Compaction and rock propertiies of Upper Jurassic-Lower Cretaceous mudrocks, Egersund Basin, northern North Sea. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Baig, I., Falaide, J.I., Jahren, j., and Mondol, N.H., 2013. Cenozoic erosion estimates on the Norwegian Barents Shelf from measured/modeled thermal maturity and sonic velocity data. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Moghadam, J.N., Aagaard, P., Mondol, N.H., and Hellevang, H., 2013. Determination of the Biot’s coefficient for the permeability of DeGeerdalen and Knorringfjellet sandstones, two consolidated formations for CO2 sequestration in Svalbard area. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Rahman, J.M., and Mondol, N.H., 2013. Reservoir quality of Stø Formation in the Snøhvit field, SW Barents Sea. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Butt, A.N., and Mondol, N.H., 2013. Cenozoic exhumation estimation in the Snøhvit area, Hammerfest Basin, Norwegian Barents Sea. NGF Winter Meeting, 8-10 January 2013, Oslo, Norway.
• Mondol, N.H., 2012. Velocity anisotropy of a shallow, well characterized shale core. SEG post-conventional workshop (W-12) on “Integration of petrophysics, rock physics and lab measurements”, September 27, Houston, Texas, USA.
• Mondol, N.H., 2012. Relationship among porosity, permeability and seismic velocity in mudstones and shales. GeoShale 2012, 14-16 May 2012, Warsaw, Poland.
• Baig, I., Faleide, J.I., Mondol, N.H., and Jahren, J., 2012. Effects of uplift and erosion on shales compaction and exhumation estimates in the SW Barents Sea. GeoShale 2012, 14-16 May 2012, Warsaw, Poland.
• Kalani, M., Mondol, N.H., Jahren, J., and Faleide, J.I., 2011. Petrophysical properties of clay dominated stratigraphic units in the Egersund and Norwegian-Danish Basins. 9th Euroconference on Rock Physics and Geomechanics, 17-21 October, 2011, Trondheim, Norway.
• Grande, L., Mondol, N.H., Berre, T., Soldal, M., and Madsus, C., 2011. Stress induced velocity anisotropy in loose sands. First International Workshop on Rock Physics, 7-12 August, 2011, Colorado School of Mines, Golden, Colorado, USA.
• Mondol, N.H., Fawad, M., Jahren, J., Avseth, P., and Bjørlykke, K., Vs estimation in unconsolidated sands – Implications about shape, size, sorting and mineralogy of sand grains. First International Workshop on Rock Physics, 7-12 August, 2011, Colorado School of Mines, Golden, Colorado, USA.
• Grande, L., Huynh, K., Jostad, H.P., Madsus, C., Johnsen, Ø., Mondol, N.H., and Cuisiat, F., 2011. Geomechanical modeling at different scales for evaluation of formation alteration as observed from Dipole Shear Radial Profiling. First International Workshop on Rock Physics, 7-12 August, 2011, Colorado School of Mines, Golden, Colorado, USA.
• Fawad, M., Mondol, N.H., Jahren, J., and Bjørlykke, K., 2010. Physical properties of sandstones based on experimental compaction. AAPG Annual Convention and Exhibition, 11-14 April 2010, New Orleans, Louisiana, USA.
• Islam, M.A., Skalle, P., and Mondol, N.H., 2010. In Situ Stress Pattern and its Impact on Stable Drilling Operation–A Sensitivity Study. Presented at the AAPG Annual Convention and Exhibition, 11-14 April 2010, New Orleans, Louisiana, USA.
• Mondol, N.H., Jahren, J., Berre, T., Grande, L., and Bjørlykke, K., 2010. Permeability anisotropy in mudstones. Presented at the AAPG Annual Convention and Exhibition, 11-14 April 2010, New Orleans, Louisiana, USA.
• Bjørlykke, K., Jahren, J., Mondol, N.H., and Thyberg, B., 2010. Sediment compaction, fluid flow and rock properties. Presented at the 29th Nordic Geological Winter Meeting, 11-13 January 2010, Oslo, Norway.
• Fawad, M., Mondol, N.H., Jahren, J., and Bjørlykke, K., 2010. Which factors control mechanical compaction in sedimentary basins? Predicting rock properties like porosity and velocity (Vp, Vs) based on experimental compaction of sands with different mineralogy, grain size, shape and sorting. Presented at the 29th Nordic Geological Winter Meeting, 11-13 January 2010, Oslo, Norway.
• Mondol, N. H., 2010. Mudstone compaction trends in basin modeling and AVO analysis: A study of Mesozoic and Cenozoic sediments in the northern North Sea. SEG (Society of Exploration Geophysicists) post-conventional workshop-Shales: never just conventional, 22 October 2010, Denver, Colorado, USA.
• Mondol, N. H., Avseth, P., Fawad, M., and Smith, T., 2010. Vs prediction in unconsolidated sands: Physical and Geological controlls on shear wave velocity. 72^nd EAGE Conference & Exhibition incorporating SPE EUROPEC 2010, 14-17 June, Barcelona, Spain.
• Mondol, N. H., Grande, L., Aker, E., Berre, T., Ørbech, T., Duffaut, K., Jahren, J., and Bjørlykke, K., 2010. Velocity anisotropy of a shallow mudstone core. EAGE Shale Workshop 2010, 26-28 April, Nice, France.
• Mondol, N.H., Jahren, J., Berre, T., Grande, L., and Bjørlykke, K., 2010. Permeability anisotropy in mudstones. Will be presented at the AAPG Annual Convention and Exhibition, 11-14 April 2010, New Orleans, Louisiana, USA.
• Mondol, N. H., Fawad, M., Grande, L., Jahren, J., and Bjørlykke, K., 2009. VS estimation in mudrocks – Implications about mineralogy and grain size. 71^st EAGE Conference & Exhibition incorporating SPE EUROPEC 2009, 8-11 June, Amsterdam, Netherlands.
• Mondol, N. H., 2009. Mudstone compaction and evolution of rock properties – Implications for shale reservoir and seal integrity. SEG (Society of Exploration Geophysicists) post-conventional workshop-Shales as reservoirs, shales as seals, October 2009, Houston, Texas, USA.
• Mondol, N. H., 2009. Porosity and permeability development in mechanically compacted silt-clay mixtures. SEG Houston Annual Meeting 2009, Houston, Texas, USA.
• Mondol, N. H., 2009. Hydraulic, electrical and acoustic properties of synthetic fine-grained rocks. ExxonMobil Upstream Research Company, Houston, Texas, USA.
• Mondol, N. H., Jahren, J., and Bjørlykke, K., 2009. Relationships between Vp and Vs in mudstones. Workshop “The Sound of Geology-II” organized by the Center of Integrated Petroleum Research, 6-8 May 2009, Bergen, Norway.
• Mondol, N. H., Bjørlykke, K., and Jahren, J., 2008. Experimental Compaction of Kaolinite Aggregates: Effect of Grain Size on Mudrock Properties. 70^th EAGE Conference & Exhibition incorporating SPE EUROPEC 2008, 9-12 June, Rome, Itely.
• Mondol, N. H., Bjørlykke, K., and Jahren, J., 2008. Mudstone Compaction Trends and Their use in Pore Pressure Prediction. Joint Meeting of The Geological Society of America, Soil Science Society of America, American Society of Agronomy, Crop Science Society of America, Gulf Coast Association of Geological Societies with the Gulf Coast Section, 5-9 October 2008, Houston, Texas, USA.
• Mondol, N. H., Fawad, M., Jahren, J., and Bjørlykke, K., 2008. Mechanical Compaction of Silt-Kaolinite Mixtures: Simulating Porosity and Permeability development in Mudstones during Burial. GEP─18: Compaction Processes ─ Porosity, Permeability and Rock Properties Evolution in Sedimentary Basins ─ A Tribute to Knut Bjørlykke, the International Geological Congress (IGC), 6-14 August 2008, Oslo, Norway.
• Mondol, N. H., Bjørlykke, K., & Jahren, J., 2008. Rock Physics Transforms: How Effective are they to Predict Mudrock Properties. SEG Summer Research Workshop “Emergent and Challenging Issues in Rock Physics: Rock This House!” 20-24 July 2008, Galway, Ireland.
• Mondol, N. H., Bjørlykke, K., and Jahren, J., 2008. Petrophysical and Acoustic Properties of 50 Well Characterized Synthetic Mudstones. EAGE Research Conference on “Compacting and Stressing Out Shales: From Geological to Production Timescales” 28-29 April 2008, Berlin, Germany.
• Mondol, N. H., 2007. Petrophysical and Acoustic Properties of Experimentally Compacted Synthetic Mudstones. SEG (Society of Exploration Geophysicists) post-conventional workshop-Shale Petrophysics and Seismic Geomechanics, September 2007, San Antonio, Texas, USA.
• Mondol, N. H., Bjørlykke, K., Jahren, J., Marcussen, Ø., and Peltonen, C., B., 2007. Prediction of mechanical compaction in mudstones and its implication for basin modeling. AAPG Headberg Conference on “Basin Modeling Perspectives: Innovative Developments and Novel Applications” 6-9 May 2007, Hague, Netherlands.
• Mondol, N. H., Marcussen, Ø., Peltonen, C., B., Bjørlykke, K., and Jahren, J., 2007. Physical properties of mudstones during burial: A comparison between laboratory investigations and well logs from the Northern North Sea and Vøring Basin, Offshore Norway. AAPG Annual Convention, 1-4 April 2007, Long Beach, California, USA.
• Mondol, N. H., Bjørlykke, K., and Jahren, J., 2007. Permeability and petrophysical properties of reconstituted mudstones ─ An experimental study. AAPG Annual Convention, 1-4 April 2007, Long Beach, California, USA.
• Mondol, N. H., Bjørlykke, K., Jahren, J., Peltonen, C., B., and Marcussen, Ø., 2006. Permeability of clays during burial and its relationships with stress, porosity and acoustic velocity ─ An experimental study. FORCE seminar on “Physical Properties of Shales: The impact on imaging”, 18-19 September 2006, Stavanger, Norway.
• Mondol, N. H., Marcussen, Ø., Bjørlykke, K., and Jahren, J., 2006. Mechanical compaction of clay-rich sediments: A comparison of shale compaction between laboratory investigations and well logs from the Northern North Sea, Offshore Norway. CIPR Workshop on “The Sound of Geology”, 26-28 April 2006, Bergen, Norway.
• Mondol, N. H., Bjørlykke, K. & Jahren, J., 2006. Experimental mechanical compaction and elastic properties of smectite, kaolinite and their mixtures-relevance to seismic interpretation and basin modelling. Geophysical Research Abstract, v. 8, 01991. European Geosciences Union (EGU) General Assembly, Vienna, Austria.

• Hansen, Jørgen André & Mondol, Nazmul Haque (2018). Reservoir characterization of the Triassic Kobbe and Snadd formations — Bjarmeland Platform, Norwegian Barents Sea. First Break.  ISSN 0263-5046.  36(2), s 37- 45 . doi: 10.3997/1365-2397.2017024 Show summary

  A reservoir characterization study of the Triassic Kobbe and Snadd formations is carried out in the Bjarmeland Platform area, Norwegian Barents Sea, through detailed petrophysical analysis and rock physics diagnostics. Results are tied to depositional environments and discussed in the context of burial depth and cementation as present burial depth is less than maximum burial depth due to upliftment. Marginal marine sandstones in the Snadd Formation display marginally better reservoir quality on average than those of fluvial origin, yet higher quality individual reservoirs are observed within both facies. As expected, the Kobbe Formation reservoirs are consistently poorer. The sensitivity of existing rock physics models to the data is shown to be reasonably valid (via porosity, water saturation, shale volume). Snadd Formation reservoir sandstones not affected by cementation are only observed at shallow depth in the west of the study area. This is supported by comparison to an experimental compaction trend as well as rock physics models. All Kobbe Formation reservoir units show consistent signs of chemical compaction due to deeper burial. The main findings of this study are estimates of important reservoir properties and examples of how results from petrophysical analysis are validated and complemented in various rock physics domains.

• Nooraiepour, Mohammad; Bohloli, Bahman; Park, Joonsang; Sauvin, Guillaume; Skurtveit, Elin & Mondol, Nazmul Haque (2018). Effect of brine-CO2 fracture flow on velocity and electrical resistivity of naturally fractured tight sandstones. Geophysics.  ISSN 0016-8033.  83(1), s WA37- WA48 . doi: 10.1190/GEO2017-0077.1 Full text in Research Archive. Show summary

  Fracture networks inside geological CO2 storage reservoirs can serve as primary fluid flow conduit, particularly in low-permeability formations. While some experiments focused on the geophysical properties of brine- and CO2-saturated rocks during matrix flow, geophysical monitoring of fracture flow when CO2 displaces brine inside the fracture seems to be overlooked. We have conducted laboratory geophysical monitoring of fluid flow in a naturally fractured tight sandstone during brine and liquid CO2 injection. For the experiment, the low-porosity, low-permeability naturally fractured core sample from the Triassic De Geerdalen Formation was acquired from the Longyearbyen CO2 storage pilot at Svalbard, Norway. Stress-dependence, hysteresis and the influence of fluid-rock interactions on fracture permeability were investigated. The results suggest that in addition to stress level and pore pressure, mobility and fluid type can affect fracture permeability during loading and unloading cycles. Moreover, the fluid-rock interaction may impact volumetric strain and consequently fracture permeability through swelling and dry out during water and CO2 injection, respectively. Acoustic velocity and electrical resistivity were measured continuously in the axial direction and three radial levels. Geophysical monitoring of fracture flow revealed that the axial P-wave velocity and axial electrical resistivity are more sensitive to saturation change than the axial S-wave, radial P-wave, and radial resistivity measurements when CO2 was displacing brine, and the matrix flow was negligible. The marginal decreases of acoustic velocity (maximum 1.6% for axial Vp) compared to 11% increase in axial electrical resistivity suggest that in the case of dominant fracture flow within the fractured tight reservoirs, the use of electrical resistivity methods have a clear advantage compared to seismic methods to monitor CO2 plume. The knowledge learned from such experiments can be useful for monitoring geological CO2 storage where the primary fluid flow conduit is fracture network.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle; Faleide, Jan Inge & Leutscher, Johan (2018). Integrating facies‐based Bayesian inversion and supervised machine learning for petro‐facies characterization in the Snadd Formation of the Goliat Field, south‐western Barents Sea. Geophysical Prospecting.  ISSN 0016-8025. . doi: 10.1111/1365-2478.12654 Show summary

  Seismic petro‐facies characterization in low net‐to‐gross reservoirs with poor reservoir properties such as the Snadd Formation in the Goliat field requires a multidisciplinary approach. This is especially important when the elastic properties of the desired petro‐facies significantly overlap. Pore fluid corrected endmember sand and shale depth trends have been used to generate stochastic forward models for different lithology and fluid combinations in order to assess the degree of separation of different petro‐facies. Subsequently, a spectral decomposition and blending of selected frequency volumes reveal some seismic fluvial geomorphological features. We then jointly inverted for impedance and facies within a Bayesian framework using facies‐dependent rock physics depth trends as input. The results from the inversion are then integrated into a supervised machine learning neural network for effective porosity discrimination. Probability density functions derived from stochastic forward modelling of endmember depth trends show a decreasing seismic fluid discrimination with depth. Spectral decomposition and blending of selected frequencies reveal a dominant NNE trend compared to the regional SE–NW pro‐gradational trend, and a local E–W trend potentially related to fault activity at branches of the Troms‐Finnmark Fault Complex. The facies‐based inversion captures the main reservoir facies within the limits of the seismic bandwidth. Meanwhile the effective porosity predictions from the multilayer feed forward neural network are consistent with the inverted facies model, and can be used to qualitatively highlight the cleanest regions within the inverted facies model. A combination of facies‐based inversion and neural network improves the seismic reservoir delineation of the Snadd Formation in the Goliat Field.

• Hansen, Jørgen André; Mondol, Nazmul Haque; Tsikalas, F. & Doering, S. (2017). Improved Transition Zone Identification Using Relations Between Shear Wave Velocity and Density, In  Fourth EAGE Workshop on Rock Physics 2017.  European Association of Geoscientists and Engineers.  ISBN 978-1-5108-5087-3.  RP18.  s 95 - 99 Show summary

  In this study, we present a method for identification of the transition zone between mechanical and chemical compaction in data from shaly lithologies. By utilizing crossplots of wireline log-measured shear wave velocity (Vs) and bulk density (ρb), we observe an increased sensitivity compared to compressional wave velocity (Vp) to the onset of chemical compaction/cementation, while eliminating uncertainties related to porosity estimations. A clear change in the velocity (Vs) gradient with increasing density is shown to occur in data from eight exploration wells. Data above and below a certain velocity value (Vs = 1350 m/s) show substantially different behavior which is expected to be a result of cementation. A linear relation in the Vs –density domain is derived from the data and suggested as a representative trend for mechanical compaction in the study area. Our suggestion is that whenever recorded with sufficient vertical coverage, direct measurements of Vs and density are trust-worthy parameters for identifying the transition zone between mechanical and chemical compaction.

• Hansen, Jørgen André; Yenwongfai, Honore Dzekamelive; Fawad, Manzar & Mondol, Nazmul Haque (2017). Estimating exhumation using experimental compaction trends and rock physics relations, with continuation into analysis of source and reservoir rocks: Central North Sea, offshore Norway. SEG technical program expanded abstracts.  ISSN 1949-4645.  s 3971- 3975 . doi: 10.1190/segam2017-17783053.1 Full text in Research Archive. Show summary

  We present a quantitative estimate of exhumation in the Central North Sea by examining depth trends of velocity and density data compared to experimental compaction trends. Additionally, seismic inversion and attribute application from the study area is shown as an example of the connection to future work on quantitative analysis of source and reservoir rocks. Rock physics relations are demonstrated to be important for all parts of the study.

• Koochak Zadeh, Mohammad; Mondol, Nazmul Haque & Jahren, Jens (2017). Velocity anisotropy of upper jurassic organic-rich shales, Norwegian continental shelf. Geophysics.  ISSN 0016-8033.  82(2), s C61- C75 . doi: 10.1190/GEO2016-0035.1 Full text in Research Archive. Show summary

  This study investigates the seismic velocity anisotropy of two organic-rich shales from the Norwegian Continental Shelf. The tested organic-rich shale samples were from the Upper Jurassic Draupne and Hekkingen formations collected from two wells (16/8-3S and 7125/1-1) drilled in the central North Sea and western Barents Sea, respectively. The two tested shales are different in organic matter richness and thermal maturation, and they have experienced different burial histories. The shale core plugs were tested in a triaxial cell under controlled pore pressure. Seismic velocities (V P VP and V S VS ) were measured along different orientations with respect to layering to identify the complete tensor of the rock elastic moduli, and to investigate the velocity anisotropy as a function of increasing effective stress. The measured velocity values exhibit strong anisotropy for the two tested organic-rich shales. The anisotropy for both shales is strongest for V S VS . Seismic velocities follow an increasing trend as the effective stress increases. The anisotropy decreases somewhat with increasing consolidation, probably due to the closing of preexisting fractures and microcracks. The reduction of anisotropy is more evident for the P-wave because it decreases from 0.32 to 0.25 for the Draupne sample and from 0.28 to 0.24 for the Hekkingen sample when the vertical effective stress increases from 26 to 50 MPa. In general, the Hekkingen sample indicates slightly higher velocity values than the Draupne sample due to more compaction and lower porosity. In spite of major differences between the two shale formations in terms of organic matter content, maturity and burial history, they indicate almost the same degree of velocity anisotropy. The outcomes of this study can contribute to better imaging of organic-rich Draupne and Hekkingen shales by constraining the rock-physics properties.

• Nooraiepour, Mohammad; Mondol, Nazmul Haque; Hellevang, Helge & Bjørlykke, Knut (2017). Experimental mechanical compaction of reconstituted shale and mudstone aggregates: Investigation of petrophysical and acoustic properties of SW Barents Sea cap rock sequences. Marine and Petroleum Geology.  ISSN 0264-8172.  80, s 265- 292 . doi: 10.1016/j.marpetgeo.2016.12.003 Show summary

  This study investigates petrophysical and acoustic properties of experimentally compacted reconstituted samples of seal sequences from the southwestern Barents Sea. The aggregates were collected from drill cuttings of mudstone and shale formations of two exploration wells, 7220/10-1 (Salina discovery) and 7122/7-3 (Goliat field). The washed and freeze-dried samples were characterized for grain size distributions, geochemical analyses, and mineralogical compositions. A total of 25 compaction tests (12 dry and 13 brine-saturated) were performed with a maximum effective vertical stress of 50 MPa. The laboratory measurements demonstrated that petrophysical and acoustic properties of argillaceous sediments can change within a sedimentary basin and even within a given formation. The results show that the collected aggregates from Goliat field are compacted more compared to Salina discovery. The maximum and minimum compaction are measured in samples collected from Snadd and Fuglen formations, respectively. The final porosity of brine-saturated specimens varies between 5% and 22%. The ultrasonic velocity measurements depict that samples with the same porosity values can have a broad range of velocity values. The resulting compaction trends in this study were compared to published compaction curves for synthetic mixtures of quartz and clay. All compaction trends show higher porosity reduction than the silt fraction with 100% quartz. Comparison of experimental compaction result of each mudstone and shale aggregate with its corresponding acquired well log data helps to delineate the burial history and exhumation in the study area. A net exhumation of 950 m and 800 m is estimated at Salina and Goliat wells, respectively. The outcomes of this study can provide insights for hydrocarbon prospect discovery in a pre-mature sedimentary basin in terms of exploration and production, and also for geological CO2 storage sites. The experimental results may provide information for well log and seismic interpretation, basin modeling and seal integrity of investigated horizons.

• Rahman, MD Jamilur & Mondol, Nazmul Haque (2017). Lateral changes in reservoir properties of the Stø Sandstone in the Snøhvit field, SW Barents Sea. First Break.  ISSN 0263-5046.  35(7), s 35- 40 . doi: 10.3997/1365-2397.2017015 Show summary

  The Stø sandstone being the main reservoir in the Barents Sea area is moderate to well sorted and mineralogically mature. This formation is thickest in the southwestern part of the Snøhvit field and gradually thinning eastward. The main objective of this study is to find out this variation using rock physics analysis. Two wells (7120/6-2S and 7121/5-1) from the field were used in this study to investigate lateral rock property variation within the Stø sandstone reservoir. Stress-dependent mechanical compaction varies because of mineralogy and textural difference from east to west despite similar effective stress regime during burial. Chemical compaction also plays a significant role which depends on the dissolution of quartz grains at stylolites and pressure solution of grain-to-grain contact and available specific surface area to precipitate quartz cement. More stylolites generated in shalye sandstone in the east compared to clean sandstone in the west suggested higher cementation in the eastern wells compared to the west. It can be concluded that both mechanical and chemical compaction processes resulted in rock property variations in the same reservoir rock within the field.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2017). Prestack simultaneous inversion to predict lithology and pore fluid in the Realgrunnen Subgroup of the Goliat Field, southwestern Barents Sea. Interpretation.  ISSN 2324-8858.  5(2), s SE75- SE96 . doi: 10.1190/INT-2016-0109.1 Full text in Research Archive.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge; Lecomte, Isabelle & Leutscher, Johan (2017). Prestack inversion and multiattribute analysis for porosity, shale volume, and sand probability in the Havert Formation of the Goliat field, southwest Barents Sea. Interpretation.  ISSN 2324-8858.  5(3), s SL69- SL87 . doi: 10.1190/INT-2016-0169.1 Full text in Research Archive. Show summary

  An integrated innovative multidisciplinary approach has been used to estimate effective porosity (PHIE), shale volume (Vsh), and sand probability from prestack angle gathers and petrophysical well logs within the Lower Triassic Havert Formation in the Goliat field, Southwest Barents Sea. A rock-physics feasibility study revealed the optimum petrofacies discriminating ability of extended elastic impedance (EEI) tuned for PHIE and Vsh. We then combined model-based prestack inversion outputs from a simultaneous inversion and an EEI inversion into a multilinear attribute regression analysis to estimate absolute Vsh and PHIE seismic attributes. The quality of the Vsh and PHIE prediction is shown to increase by integrating the EEI inversion in the workflow. Probability distribution functions and a priori petrofacies proportions extracted from the well data are then applied to the Vsh and PHIE volumes to obtain clean and shaly sand probabilities. A tectonic-controlled point-source depositional model for the Havert Formation sands is then inferred from the extracted sand bodies and the seismic geomorphological character of the different attributes

• Baig, Irfan; Faleide, Jan Inge; Jahren, Jens & Mondol, Nazmul Haque (2016). Cenozoic exhumation on the southwestern Barents Shelf: Estimates and uncertainties constrained from compaction and thermal maturity analyses. Marine and Petroleum Geology.  ISSN 0264-8172.  73, s 105- 130 . doi: 10.1016/j.marpetgeo.2016.02.024 Show summary

  The Barents Sea is believed to have been influenced in most parts by Cenozoic uplift and erosion episodes. The rocks in the area are not currently at their maximum burial depth. The exhumation of the sedimentary rocks has had large effects on rock physical properties and hydrocarbon maturation and migration. The current study seeks to estimate exhumation from shale compaction and thermal maturity techniques and discuss its implications for hydrocarbon exploration in the uplifted Barents Sea area. This study uses well logs and thermal maturity data together with widely distributed shot gather data along long-offset seismic reflection lines. The use of shale compaction techniques to estimate exhumation was focused particularly on the regionally preserved Aptian-Albian (Kolmule Formation) and Paleogene (Torsk Formation) shales. Normal compaction reference curves were established for these units in areas currently at their maximum burial depth (e.g. Sørvestsnaget Basin and Vestbakken Volcanic Province). The results suggest widespread Cenozoic exhumation throughout the southwestern Barents Sea. The exhumation magnitudes increase towards east and northeast. The average exhumation estimates from the three data sources range from ∼800 to 1400 m within the Hammerfest Basin, ∼1150–1950 m on the Loppa High, ∼1200–1400 m on the Finmark Platform and ∼1250–2400 m on the Bjarmeland Platform. The marked differences in glacial erosion from mass balance and average erosion estimates from the current study suggest a significant pre-glacial uplift and erosion in the southwestern Barents Sea area. The observed stratigraphy and presence of significant volumes of Late Oligocene-Middle Miocene sediments in basins at the outer margin, and increased erosion rates at the same time in source areas suggest that maximum burial in the southwestern Barents Sea may have occurred sometime during the Oligocene, or even earlier in the Eocene. The results from this study are useful input for modelling of source rock maturation, generation, migration and trapping of hydrocarbons in the area. These results are also an important input for the prediction of more precise reservoir and seal rock properties in frontier areas away from the exploration wells and provide valuable knowledge for the use of interval velocities in the uplifted areas.

• Koochak Zadeh, Mohammad; Mondol, Nazmul Haque & Jahren, Jens (2016). Compaction and rock properties of Mesozoic and Cenozoic mudstones and shales, northern North Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  76, s 344- 361 . doi: 10.1016/j.marpetgeo.2016.05.024 Show summary

  In this study, rock physical properties and their evolution resulting from compaction processes are investigated for Mesozoic and Cenozoic mudstones and shales located in southern Viking Graben and adjacent areas within the Norwegian North Sea. The studied sediments are deposited within a progressively-subsided sedimentary basin with no major experience of exhumation events. A suite of well log data from 43 exploration wells was utilized to study the compaction behaviour of the Mesozoic and Cenozoic mudstone and shale intervals. The gamma ray log-derived shale volume (Vsh) was used to define different lithofacies and discriminate between the studied mudstones and shales. The rock properties as a function of burial depth were plotted for the identified mudstone and shale intervals. The trends could be divided into a mechanical compaction part and a chemical compaction part depending on the prevalent processes controlling the rock properties with burial depth. The transition from mechanical compaction domain to the zone of dominant chemical compaction takes place between 70 and 90 °C corresponding to a depth of 2–2.5 km. The onset of chemical compaction and cementation occurs in the same sediment found at the same depth range almost throughout the study area in spite of variable geothermal gradient indicating a lithological control on the development of chemical compaction. The degree of chemical compaction and cementation reflects the initial smectite content and the availability of potassium for the smectite to illite and quartz reaction to take place. This study contributes to the understanding of compaction processes in fine-grained siliciclastic sediments delineating the controlling factors in a region which can be regarded a natural laboratory to study compaction mechanisms due to being a subsiding basin with the extensive availability of pertrophysical data generated by hydrocarbon exploration and production activities in the area.

• Koochak Zadeh, Mohammad; Mondol, Nazmul Haque & Jahren, Jens (2016). Experimental mechanical compaction of sands and sand–clay mixtures: a study to investigate evolution of rock properties with full control on mineralogy and rock texture. Geophysical Prospecting.  ISSN 0016-8025.  64(4), s 915- 941 . doi: 10.1111/1365-2478.12399 Show summary

  Development of rock physical properties in well-sorted and poorly-sorted unconsolidated mono-quartz sands and sand–clay mixtures as a function of effective stress in both dry and brine-saturated conditions is assessed in this study. The tested samples were prepared with full control on their mineralogy, grain size, grain shape, sorting, and fabric. The experiments were performed in a high-stress uniaxial oedometer up to a maximum of 30 MPa vertical effective stress. Sand–clay samples were a mixture of sand grains and clay particles (kaolinite or smectite) in different proportions. The maximum clay volume fraction used in the experiments was at most 30%. The initial bulk density of the tested sand-dominated samples was adjusted to be close to the maximum index density expected for natural sediments (sand–clay mixtures) during deposition. In pure sand samples, finer grained sand show higher initial porosity than relatively coarser grained sands. Moreover, sand–clay mixtures have lower initial porosity than pure sands. Porosity decreases as a function of increasing clay content. The poorly-sorted sand samples are less compaction prone than the well-sorted sand samples. Among well-sorted sand samples, coarser grained sands are more compressible than finer grained sands. At a given effective stress level, sand–clay mixtures are more compaction prone compared with their sand component alone. Pure sands and clay-poor sand–clay mixtures (either sand–kaolinite or sand–smectite) show almost the same degree of compaction when tested in both dry and brine-saturated conditions. In contrast, clay-rich sand–kaolinite and sand–smectite mixtures (clay volume >20%) are significantly more compact in brine-saturated condition. The Vp values of brine-saturated sand–kaolinite mixtures shows a positive correlation with the kaolinite content, whereas Vp starts to decrease substantially when the volume fraction of smectite exceeds 10% of the whole sand–smectite samples. Saturated bulk moduli estimated by Gassmann's fluid substitution agree with measurements for brine-saturated clay-poor sand samples. However, the model does not yield proper predictions for sand–clay samples containing 20% clay volume and above, particularly when the clay is mainly smectite. The acoustic and physical properties derived from experimental compaction of pure sands and sand–clay mixtures show a good agreement with rock properties derived from well logs of mechanically compacted pure sands and shaly sands in progressively subsided basins such as Viking Graben in the North Sea. Thus, the outcome of this study can provide reliable constraints for rock physical properties of sands and shaly sands within the mechanical compaction domain and contribute to improved basin modelling and identification of hydrocarbon presence, overconsolidation, and/or undercompaction.

• Naseryan Moghadam, Javad; Mondol, Nazmul Haque; Aagaard, Per & Hellevang, Helge (2016). Effective stress law for the permeability of clay-bearing sandstones by the Modified Clay Shell model. Greenhouse Gases: Science and Technology.  ISSN 2152-3878.  6(6), s 752- 774 . doi: 10.1002/ghg.1612 Show summary

  In this study, the effective stress law for the permeability of two core plugs selected from Berea (Cleveland Quarries, OH, USA) and Knorringfjellet (Longyearbyen, Svalbard, Norway) sandstones is studied experimentally by measuring the core permeability (k) under varying confining stress (σc) and pore pressures (Pp). The obtained results demonstrate that the permeabilities of the two core plugs decrease with increasing σc or decreasing Pp. The effective stress coefficient for the permeability (αk) values are more than 1.0 for both sandstone core plugs indicating higher sensitivity of the permeability with respect to the applied Pp compared to the applied σc. The previously presented models for calculating αk, such as the Clay Free, Clay Shell, and Clay Particle models, are discussed and a new modified Clay Shell model considering spherical geometry is presented to account for the considerable contrast between the elastic moduli of quartz and clay minerals. The discussed models strongly depend on the magnitude of the considered elastic moduli for the clay minerals. While the Clay Shell and Clay Particle models are capable of describing the observed αk values by considering extremely low elastic moduli for clays, the new modified Clay Shell model is capable of predicting αk values by considering moderate to low values of elastic moduli of clays. The increasing trend of αk values by increasing the σc is discussed and a new correlation based on the observed k values for calculation of αk is presented.

• Naseryan Moghadam, Javad; Mondol, Nazmul Haque; Aagaard, Per & Hellevang, Helge (2016). Experimental investigation of seismic velocity behavior of CO2 saturated sandstones under varying temperature and pressure conditions. Greenhouse Gases: Science and Technology.  ISSN 2152-3878.  6(6), s 734- 751 . doi: 10.1002/ghg.1603 Show summary

  Subsurface storage of CO2 into geological formations is considered an important strategy to mitigate increasing atmospheric CO2. Time-lapse seismic monitoring is an integral component of a geological CO2 sequestration project because the seismic behavior of the rock is a function of both mineralogical composition and pore fluid properties. At the uppermost kilometer of the sedimentary basin, CO2 can be present at gaseous, liquid, and supercritical states, with the supercritical and liquid states preferred in CO2 storage operations due to the higher sweep efficiency. In this study, the seismic velocities [both compressional (Vp) and shear (Vs) waves] of two CO2-saturated sandstone core plugs (Red Wildmoor and Knorringfjellet formations) have been measured under a range of temperatures and pressures in which CO2 phase transitions occur. The experiments were done using a uniaxial hydrostatic cell equipped with seismic wave transmitting and receiving transducers. The experimental investigation illustrated that seismic velocities (both Vp and Vs) decreased until the critical point was reached. Further increases in the CO2 pressure above the critical point led to a gradual increasing of Vp while the Vs remained unchanged. The effect of CO2 on the seismic velocity of the sandstone was compared with the effects of N2 and distilled water at the same conditions. It was further indicated that the seismic velocity changes were mainly connected to significant changes of CO2 density and the corresponding bulk rock moduli over the critical point. The observed velocities are in good agreement with Gassmann-predicted velocities as well as literature data.

• Nooraiepour, Mohammad & Mondol, Nazmul Haque (2016). Petrophysical and acoustic properties of mechanically compacted shales - evaluating two Barents Sea top seal sequences, In .. .. (ed.),  7th EAGE Saint Petersburg International Conference and Exhibition.  European Association of Geoscientists and Engineers.  ISBN 9781510822498.  We STZ0 01. Show summary

  This study investigates petrophysical and acoustic properties of two experimentally compacted reconstituted seal sequences (Late Triassic Snadd and Early Cretaceous Kolmule Formations) from two localities (Goliat field and Saline discovery) in the SW Barents Sea. Four samples were chosen from cuttings of two exploration wells 7122/7-3 (Goliat) and 7220/10-1 (Salina) drilled in the study area. The washed and freeze dried cutting samples were characterized for grain size analysis, geochemical (organic content) and mineralogical compositions. A total of eight compaction tests (four dry and four brine-saturated) were performed in the laboratory to apply a maximum vertical effective stress of 50 MPa. The maximum compaction observed in Snadd shale aggregates collected from the Goliat well (4.5% porosity). In order to study compaction history and seal integrity, the experimental results were compared with well log data. It is clear from comparison that the mechanical compaction of reconstituted shale and mudstone samples can be capable of describing natural processes, providing valuable insights on the state of mechanical/chemical compaction, and helping the seal integrity assessments. The results of this study will have applications in rock physics, basin modelling and top seal integrity.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2016). Prestack inversion for porosity, shale volume and sand probability in the Havert Formation of the Goliat field, SW Barents Sea.. SEG technical program expanded abstracts.  ISSN 1949-4645.  s 3543- 3547 . doi: 10.1190/segam2016-13943690.1 Show summary

  This study implements a multidisciplinary approach to porosity (PHIE), shale volume (Vsh) and sand probability estimation from prestack angle gathers and petrophysical well logs. A rock physics feasibility study revealed the optimum petrofacies discriminating ability of extended elastic impedance (EEI) and PHIE. Multilinear regression analysis is then applied to the output of the simultaneous inversion of seismic data to estimate Vsh and PHIE. Probability distribution functions (PDFs) and a priori facies extracted from the well data are then applied to the Vsh and PHIE volumes to obtain a sand probability cube for the Lower Triassic Havert Formation in the Goliat field, SW Barents Sea.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle & Faleide, Jan Inge (2016). Prestack simultaneous inversion to predict lithology in the Realgrunnen subgroup of the Goliat Field, SW Barents Sea, In .. .. (ed.),  7th EAGE Saint Petersburg International Conference and Exhibition.  European Association of Geoscientists and Engineers.  ISBN 9781510822498.  We LHR3 03. Show summary

  This study describes a successful multidisciplinary work flow for quantitative lithology prediction from prestack angle gathers and petrophysical well log data within the Realgrunnen Subgroup in the Goliat Field, Norwegian Barents Sea. An amplitude-versus-angle (AVA) qualitative attribute analyses was performed to assess the spatial distribution of lithology anomalies from the seismic data. A simultaneous prestack elastic inversion was also carried out for quantitative estimates of P-impedance and Vp/Vs ratios which were subsequently analysed using 3D cross plots. Probability distribution functions (PDFs), and a priori lithology class proportions extracted from the well log training data are then applied to the inverted seismic volume. AVA qualitative analyses showed a class-IV top reservoir response, and lithology anomalies interpreted from the scaled S-wave reflectivity attribute map revealed a qualitative spatial distribution of the reservoir sands. The confusion matrix from the best training dataset shows the largest misclassification between shaly sands and shales. PDFs from a rule based ternary lithology classification provided the best resolution for the clean sands. A good match is obtained between horizon attributes generated from angle gathers and that obtained from the clean sand and shaly sand probability maps combined.

• Abbas, Mohsin; Bohloli, Bahman; Mondol, Nazmul Haque & Grande, Lars (2015). Brazilian Tensile Strength Test - Post-failure Behavior of Jurassic and Cretaceous Shales from Svalbard, In  77th EAGE Conference and Exhibition 2015: Earth Science for Energy and Environment: Proceedings of a meeting held 1-4 June 2015, Madrid, Spain.  Curran Associates, Inc..  ISBN 9781510806627.  N116 10.  s 940 - 944 Show summary

  This study presents results of indirect tensile tests on cap rock shale samples from Svalbard CO2 storage pilot. It elaborates on tensile strength and the relationship between loading direction and post-failure behaviour of cap rock shale samples. Several test plugs were sampled from Jurassic and Creataceous Age cores of borehole Dh2, Dh4 and Dh6 from depth range of about 400 to 700 m. Samples were tested both parallel and perpendicular to bedding plane. Result of the tests showed that cap rock shale samples subjected to the Brazilian test in different directions relative to bedding planes differs not only in terms of the peak strength but also in the shape of the post-failure curve. The cap rock shale loaded perpendicular to bedding have higher strength and those loaded parallel with bedding show lower strengths. Samples loaded perpendicular to bedding bear load up to a maximum peak followed by a large drop and never reaches the maximum peak load again. For samples loaded parallel with bedding a maximum load is reached at failure followed by sudden drop, but load can increase to the same or higher level than the initial failure stress.

• Kalani, Mohsen; Jahren, Jens; Mondol, Nazmul Haque & Faleide, Jan Inge (2015). Compaction processes and rock properties in uplifted clay dominated units, - The Egersund Basin, Norwegian North Sea. Marine and Petroleum Geology.  ISSN 0264-8172.  68, s 596- 613 . doi: 10.1016/j.marpetgeo.2014.08.015
• Kalani, Mohsen; Jahren, Jens; Mondol, Nazmul Haque & Faleide, Jan Inge (2015). Petrophysical implications of source rock microfracturing. International Journal of Coal Geology.  ISSN 0166-5162.  143(1), s 43- 67 . doi: 10.1016/j.coal.2015.03.009
• Kalani, Mohsen; Koochak Zadeh, Mohammad; Jahren, Jens; Mondol, Nazmul Haque & Faleide, Jan Inge (2015). Effect of diagenesis on pore pressures in fine-grained rocks in the Egersund Basin, Central North Sea. Norsk Geologisk Tidsskrift.  ISSN 0029-196X.  95(2), s 171- 189 . doi: 10.17850/njg95-2-03 Full text in Research Archive. Show summary

  Pore pressure in fine-grained rocks is important with respect to drilling problems such as kicks, blowouts, borehole instability, stuck pipe and lost circulation. In this study, a succession of overpressured, fine-grained, sedimentary rocks located in the Egersund Basin, Central North Sea, was analysed with respect to mineralogical composition, source-rock maturation and log-derived petrophysical properties to highlight the effect of diagenetic processes on the pore pressure. Petrographic and geochemical analyses showed that the overpressure in the study area is largely linked to disequilibrium compaction, illitisation and source-rock maturation shown by log-derived physical properties. Pore-pressure prediction based on the difference of log-derived sonic transit time compared to the normal compaction trend (NCT) of fine-grained rocks can be used to infer the general trends of pore-pressure changes. However, during such pore-pressure prediction (e.g., using Eaton’s approach), one should note that with regard to sonic response of the above-mentioned processes, the sonic log-derived, predicted pore pressure in the chemically compacted intervals and organicrich thermally mature successions may show either underestimations or overestimations, respectively.

• Mondol, Nazmul Haque (2015). Well Logging: Principles, Applications and Uncertainties, In Knut Bjørlykke (ed.),  Petroleum Geoscience. From sedimentary environments to rock physics - second edition.  Encyclopedia of Global Archaeology/Springer Verlag.  ISBN 978-3-642-34131-1.  Chapter.  s 385 - 425 Show summary

  Well logging is a means of recording the physical, acoustic and electrical properties of the rocks penetrated by a well. It is carried out by service companies, which work under contract for the oil companies. Logging has the advantage that it measures in situ rock properties which cannot be measured in a laboratory from either core samples or cuttings.

• Skurtveit, Elin; Grande, Lars; Ogebule, Oluwakemi Yetunde; Gabrielsen, Roy; Faleide, Jan Inge; Mondol, Nazmul Haque; Maurer, R. & Horsrud, Per (2015). Mechanical testing and sealing capacity of the Upper Jurassic Draupne Formation, North Sea, In Peter Smeallie (ed.),  49th US Rock Mechanics/Geomechanics Symposium - ARMA.  American Rock Mechanics Association (ARMA).  ISBN 978 0 9794975 0 6.  ARMA 15-331.
• Soldal, Magnus; Park, Joonsang; Lameck, Omolo; Tran, Trung; Sauvin, Guillaume; Johnsen, Øistein & Mondol, Nazmul Haque (2015). Geophysical monitoring of CO2 flow during sandstone flooding experiments, In Marjolein van Kraanen (ed.),  Proceedings third EAGE workshop on rock physics: from rocks to basin - applying rock physics in prospect evaluation and reservoir characterization.  Curran Associates, Inc..  ISBN 978-94-6282-153-8.  26649. Show summary

  In this study, liquid CO2 is injected into fully brine saturated reservoir core samples in the laboratory, and consequently changes in electrical resistivity, acoustic velocities (ultrasonic frequency) and their anisotropy are measured. To enhance the spatial resolution, a system enabling velocity and resistivity measurements at different points and in different directions along the specimen's axial direction has been developed. Electrical resistivity and acoustic velocity and amplitude are all clearly influenced by pore-scale heterogeneity and fluid flow pattern and it is important to study this interaction. So far, focus has been related to CO2 geological storage, but the outline of the study is believed to also be applicable for CO2 injection for enhanced oil recovery (EOR). The study is still ongoing and some preliminary results are presented here and discussed.

• Jahren, Jens; Koochak Zadeh, Mohammad & Mondol, Nazmul Haque (2014). Experimental Mechanical Compaction of Sand-Clay Mixtures: Implication of Experimental Data to Validate Applicability of Friable Sand Model. SEG technical program expanded abstracts.  ISSN 1949-4645.  s 3035- 3039 . doi: 10.1190/segam2014-1519.1
• Naseryan-Moghadam, Javad; Mondol, Nazmul Haque; Hellevang, Helge; Johnsen, Øistein & Aagaard, Per (2014). Seismic Response of CO2 Saturated Red Wildmoor Sandstone under Varying Temperatures and Pressures, In EAGE2014 (ed.),  Workshop Proceedings. 76th EAGE Conference & Exhibition.  European Association of Geoscientists and Engineers.  ISBN 978-90-73834-90-3.  Tu G107 15.
• Grande, Lars & Mondol, Nazmul Haque (2013). Geomechanical, hydraulic and seismic properties of unconsolidated sediments and their applications to shallow reservoirs, In L.J. Pyrak-Nolte (ed.),  47th US Rock Mechanics / Geomechanics Symposium 2013. Proceedings of a meeting held 23-26 June 2013, San Francisco, California, USA.  Curran Associates, Inc..  ISBN 9781629931180.  x.  s 2699 - 2708
• Narongsirikul, Sirikarn; Mondol, Nazmul Haque & Jahren, Jens (2013). Possible application of friable sand model for shallow mechanically compacted overconsolidated sands, In . SEG (ed.),  SEG Technical Program Expanded Abstracts 2013.  SEGEAB.  ISBN 0-000-00000-0.  x.  s 2701 - 2706
• Moyano, Bernardo; Spikes, Kyle Thomas; Johansen, Tor Arne & Mondol, Nazmul Haque (2012). Modeling compaction effects on the elastic properties of clay-water composites. Geophysics.  ISSN 0016-8033.  77(5), s D171- D183 . doi: 10.1190/geo2011-0426.1
• Fawad, Manzar; Mondol, Nazmul Haque; Jahren, Jens & Bjørlykke, Knut (2011). Mechanical compaction and ultrasonic velocity of sands with different texture and mineralogical composition. Geophysical Prospecting.  ISSN 0016-8025.  59(4), s 697- 720 . doi: 10.1111/j.1365-2478.2011.00951.x
• Grande, Lars; Mondol, Nazmul Haque & Berre, Toralv (2011). Horizontal Stress Development in Fine-grained Sediments and Mudstones during Compaction and Uplift, In 2011 EAGE (ed.),  73rd EAGE Conference & Exhibition Incorporating SPE EUROPEC 2011.  European Association of Geoscientists and Engineers.  ISBN 978-90-73834-12-5.  Geomechanics -/-Seismic Interferometry. Show summary

  Knowledge of Ko, the ratio between horizontal and vertical effective stresses, is important for understanding development of horizontal stress during compaction and uplift in sedimentary basins. In this paper recent experimental data of Ko of natural and synthetic mudstones are presented. A series of uniaxial strain tests (Ko consolidation) has been performed on 10 synthetic sand-silt-clay mixtures and seven natural Barents Sea mudstone samples from the Hekkingen and Fuglen formation of Upper Jurassic age. The development of Ko in synthetic and natural samples is compared during the compaction and unloading phases. For a given synthetic mixture of one clay component (illite) and silt there is a strong correlation of the fraction of clay on the Ko value. Various fractions of pure kaolinite and illite gave minor differences on the Ko value. These variations of Ko in the clay and silt mixtures can probably be explained by variations in friction angle,which is previously shown to be a critical parameter for development of Ko during compaction and unloading in uncemented sediments. The relations for Ko derived for uncemented sediments do not apply directly during compaction and unloading of the cemented Barents Sea mudstones. ...

• Mondol, Nazmul Haque; Jahren, Jens; Berre, Toralv; Grande, Lars & Bjørlykke, Knut (2011). Permeability Anisotropy in Synthetic Mudstones − An Experimental Study, In 2011 EAGE (ed.),  73rd EAGE Conference & Exhibition Incorporating SPE EUROPEC 2011.  European Association of Geoscientists and Engineers.  ISBN 978-90-73834-12-5.  Rock Physics - Stress, Anisotropy & Tight Rocks. Show summary

  This study investigates permeability anisotropy in well characterized synthetic mudstones. A total of 10 brine-saturated synthetic mudstones of varying textural and mineralogical compositions were compacted in a triaxial cell (K0-consolidation) while the vertical and horizontal permeability were measured at different stress levels. The results show that the vertical and horizontal permeabilities of synthetic mudstones differ by as much as 5-6 orders of magnitude as a function of mineralogy at the same stress level. Permeabilities were isotropic in pure silt but adding about 30% clays to the silt strongly reduced the permeability and increased the anisotropy. The horizontal-to-vertical permeability ratio in silt-clay and clay-clay mixtures varies from 0.5 to 3.5, demonstrating the importance of clay mineralogy, grain size and silt content on permeability anisotropy development in mudstones. Natural mudstone may have much higher permeability anisotropy than found in this study due to a primary depositional lamination and bedding on larger scale than produced in the laboratory. Permeability distributions and horizontal-to-vertical permeability ratios derived in this study can readily be tested on cap rocks and used to model fluid flow where the compaction is mostly mechanical. At greater depth chemical compaction may increase the permeability anisotropy of mudstone further. ...

• Bjørlykke, Knut; Høeg, Kaare & Mondol, Nazmul Haque (2010). Introduction to geomechanics: stress and strain in sedimentary basins, In Knut Bjørlykke (ed.),  Petroleum Geoscience: From Sedimentary Environments to rock Physics.  Springer Science+Business Media B.V..  ISBN 978-3-642-02331-6.  Chapter 11.  s 281 - 298
• Fawad, Manzar; Mondol, Nazmul Haque; Jahren, Jens & Bjørlykke, Knut (2010). Experimental mechanical compaction to measure the influence of pore pressure on compressional wave velocity in unconsolidated sands. First Break.  ISSN 0263-5046.  28(10), s 53- 59
• Fawad, Manzar; Mondol, Nazmul Haque; Jahren, Jens & Bjørlykke, Knut (2010). Microfabric and rock properties of experimentally compressed silt-clay mixtures. Marine and Petroleum Geology.  ISSN 0264-8172.  27(8), s 1698- 1712 . doi: 10.1016/j.marpetgeo.2009.10.002

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• Nooraiepour, Mohammad; Hellevang, Helge & Mondol, Nazmul Haque (2018). From field-scale to pore-scale: Investigation of caprock properties for CO2 sequestration.
• Baig, Irfan; Faleide, Jan Inge; Hjelstuen, Berit Oline Blihovde; Sejrup, Hans Petter; Nystuen, Johan Petter; Aagaard, Per; Jahren, Jens & Mondol, Nazmul Haque (2017). Seismic mapping of Quaternary sediment distribution in the central and northern North Sea.
• Baig, Irfan; Faleide, Jan Inge; Jahren, Jens & Mondol, Nazmul Haque (2017). Burial and exhumation history controls on shale compaction and thermal maturity along the Norwegian North Sea margin.
• Bjørlykke, Knut; Jahren, Jens; Mondol, Nazmul Haque; Hellevang, Helge & Aagaard, Per (2017). Mechanical compaction of sand and clay: Constraints from experimental compaction, chemical reactions and fluid flow during burial-An overview.
• Choi, Jung Chan; Park, Joonsang; Grande, Lars & Mondol, Nazmul Haque (2017). Anisotropy resistivity measurement using Modified Triaxial Cell: Estimation of geometry factor using numerical simulation.
• Fawad, Manzar & Mondol, Nazmul Haque (2017). Source rock evaluation using elastic properties and resistivity from the borehole logs. Example from the Egersund Basin, Central North Sea.
• Haider, Shahzeb & Mondol, Nazmul Haque (2017). Depositional pattern controlling the reservoir properties of the Middle Triassic Snadd Formation from the SW Barents Sea.
• Hansen, Jørgen André & Mondol, Nazmul Haque (2017). Reservoir characterization of the Triassic succession of the Bjarmeland Platform, SW Barents Sea..
• Moghadam, Javad Naseryan; Mondol, Nazmul Haque; Aagaard, Per & Hellevang, Helge (2017). Determination of CO2-Brine relative permeability curves for CO2 storage sandstone reservoirs.
• Mondol, Nazmul Haque (2017). Rock Physics Diagnostics of Exhumed Reservoir Sandstone.
• Nooraiepour, Mohammad & Mondol, Nazmul Haque (2017). Experimental mechanical compaction of reconstituted mudrocks from the SW Barents Sea: implication for exhumation estimation.
• Park, Joonsang; Soldal, Magnus; Sauvin, Guillaume; Nooraiepour, Mohammad; Mondol, Nazmul Haque & Bohloli, Bahman (2017). On wave propagation in a CO2/Brine-saturated fractured core.
• Sharifi, Javad; Mirzakhanian, M; Mondol, Nazmul Haque & Saberi, M. R. (2017). Proposed relationships between dynamic and static Young modulus of a weak carbonate reservoir using laboratory tests.
• Soldal, Magnus; Sauvin, Guillaume; Park, Joonsang; Mannseth, Trond; Tveit, Svenn; Agersborg, Remy; Aagaard, Per & Mondol, Nazmul Haque (2017). Geophysical monitoring for offshore CO2 storage combined with rock physics lab data(based on SUCCESS WP3 final report Geophysics).
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2017). Petrofacies characterization using prestack inversion and neural networks within the Snadd Formation of the Goliat Field, SW Barents Sea. Show summary

  The studied Goliat Field is the first oil field to be in production in the Norwegian sector of the Barents Sea despite an exploration history spanning over three decades. The reserves within Triassic Snadd Formation were not included in PDO (Plan for Development and Operations). This was due to poorer reservoir properties compared to the Realgrunnen Subgroup and the Kobbe Formation which together constitute the primary reservoir target in the Goliat Field. The field has an expected life time of 15 years. However, this life time can potentially be extended by applying quantitative seismic reservoir characterization techniques within more challenging minor reservoir intervals like the Snadd formation. Fluid discrimination by geophysical technique in uplifted Barents Sea areas has additional challenges as a result of a reduction in the seismic fluid sensitivity associated with rock stiffening (overconsolidation) due to prior deeper burial and quartz cementation. A multidisciplinary approach involving geology, rock physics, and geophysics has been used for petrofacies characterization from long offset prestack angle gathers and petrophysical well logs. A rock physics feasibility and AVA forward modelling reveal the sensitivity of the defined petrofacies classes to different elastic properties. The optimum prestack inversion method is subsequently selected based on the rock physics feasibility. The output from the inversion is used to derive the PEIL (Pseudo-Elastic Impedance), PI (Poisson Impedance), and LMR (Lambda-Mhu-Rho) attributes. These derived prestack attributes are then combined with poststack trace attributes in a neural network analysis. Neural networks utilize the non-linear relationships between the parameters to further optimize the inverted result and to predict the effective porosity, gamma ray, and resistivity log responses. Finally probability density functions (PDFs) extracted from the best well log training dataset are applied to a composite seismic attribute volume from which probability estimates of the classified petrofacies are obtained. Geological interpretations are then inferred based on the seismic geomorphological character observed from the different attributes. Probability maps obtained from this integrated approach has the potential to guide petrophysical reservoir modelling workflows and optimization of reservoir drainage strategies.

• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle & Faleide, Jan Inge (2017). Quantitative Seismic interpretation strategies for petrofacies discrimination within the Triassic: A Goliat Case Study.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Lecomte, Isabelle; Faleide, Jan Inge & Leutscher, J (2017). Integrating prestack inversion, machine learning, and forward seismic modelling for petrofacies characterization: A Barents Sea case study.
• Nooraiepour, Mohammad & Mondol, Nazmul Haque (2016). Petrophysical and Acoustic Properties of Mechanically Compacted Shales - Evaluating Two Barents Sea Top Seal Sequences.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2016). Prestack Simultaneous Inversion to Predict Lithology in the Realgrunnen Subgroup of the Goliat Field, SW Bareants Sea.
• Yenwongfai, Honore Dzekamelive; Mondol, Nazmul Haque; Faleide, Jan Inge & Lecomte, Isabelle (2016). Quantitative seismic reservoir characterization within the Realgrunnen Subgroup and the Havert Formation in the Goliat Field, SW Barents Sea.
• Barrio, Maria; Stewart, Heather A.; Akhurst, M.; Aagaard, Per; Alcalde, J.; Bauer, Andreas; Bradwell, T.; Cavanagh, A.; Evans, D; Faleide, Jan Inge; Furre, Anne-Kari; Gent, C.; Haflidason, Haflidi; Haszeldine, S.; Hjelstuen, Berit Oline Blihovde; Johnson, G.; Mondol, Nazmul Haque; Querendez, Etor; Ringrose, P.S.; Sejrup, Hans Petter; Stewart, M.; Uriansrud, F.; Wilkinson, M; Mørk, Atle; Primio, R. de & Mørkved, Pål Tore (2015). Norway and UK cross-boundary initiative towards a limate motivated drilling operation in the North Sea.
• Faleide, Jan Inge; Kalani, Mohsen; Sassier, Caroline; Angeli, Matthieu; Ogebule, Oluwakemi Yetunde; Baig, Irfan; Jarsve, Erlend M.; Gabrielsen, Roy Helge; Mondol, Nazmul Haque; Jahren, Jens; Aagaard, Per; Skurtveit, Elin; Grande, Lars; Maurer, Rudolf & Horsrud, P. (2015). Caprock research in the CO2Seal project.
• Grande, Lars; Soldal, Magnus & Mondol, Nazmul Haque (2015). Dynamic to static relationships of shear modulus for sand and sandstones, 3rd International Workshop on Rock Physics, 13-17 April 2015, Perth, Australia.
• Mondol, Nazmul Haque (2015). Experimental compaction of dry smectite-silt mixtures, 3rd International Workshop on Rock Physics.
• Mondol, Nazmul Haque (2015). Norwegian Shale Gas/Oil- The Story So Far.
• Ogebule, Oluwakemi Yetunde; Mondol, Nazmul Haque & Jahren, Jens (2015). Seal Integrity of Late Jurassic to Early Cretaceous Mudrocks of the South-Western Barents Sea Area.
• Omolo, Lameck; Tran, Trung; Soldal, Magnus; Mondol, Nazmul Haque; Grande, Lars; Park, Joonsang & Johnsen, Øistein (2015). Multidirectional acoustic velocity measurement during CO2 flooding in sandstones.
• Soldal, Magnus; Omolo, Lameck; Tran, Trung; Johnsen, Øistein; Mondol, Nazmul Haque; Sauvin, Guillaume; Viken, Inge; Grande, Lars & Park, Joonsang (2015). CO2 flooding experiment of reservoir sandstones-monitoring changes in acoustic and electric properties. Show summary

  We present an advanced laboratory work to measure electrical resistivity, acoustic velocity (ultrasonic frequency) and anisotropy during injection of liquid CO2 into initially brine saturated reservoir core samples. A novel measurement system has been developed, where velocity and resistivity are measured at different points along the specimen axial direction. The changes in velocity and resistivity observed during the CO2 injection will be a critical element in interpreting geophysical field data to understand reservoir behaviour.

• Tran, Trung; Omolo, Lameck; Soldal, Magnus; Mondol, Nazmul Haque; Park, Joonsang & Johnsen, Øistein (2015). Tracking Co2 Front Development with Electrical Resistivity Measurements - An Experimental Study.
• Zadeh, Mohammad Koochak; Mondol, Nazmul Haque & Jahren, Jens (2015). Velocity-porosity Evolution of Mechanically Compacted Brine-saturated Sand-clay Mixtures.
• Zadeh, Mohammad Koochak; Ogebule, Oluwakemi Yetunde; Mondol, Nazmul Haque; Jahren, Jens & Faleide, Jan Inge (2015). A laboratory study to investigate velocity anisotropy of an oaganic-rich shale, Central North Sea, Offshore Norway.
• Baig, Irfan; Faleide, Jan Inge; Mondol, Nazmul Haque & Jahren, Jens (2014). Effects of Late Cenozoic uplift and erosion on the petroleum system and reservoir properties in the Hammerfest Basin, Barents Sea.
• Baig, Irfan; Faleide, Jan Inge; Mondol, Nazmul Haque & Jahren, Jens (2014). Uplift/erosion estimates and uncertainties on the Norwegian Barents Shelf.
• Johnsen, Øistein; Soldal, Magnus; Park, Joonsang; Mondol, Nazmul Haque & Alemu, Binyam Lema (2014). C02 - Resistivity and Ultrasonic Velocity Measurements During CO2-brine Drainage and Imbibition.
• Johnsen, Øistein; Soldal, Magnus; Park, Joonsang; Mondol, Nazmul Haque & Alemu, Binyam Lema (2014). Resistivity and Ultrasonic Velocity Measurements During CO2-brine Drainage and Imbibition. EarthDoc.
• Moghadam, Javad Naseryan; Mondol, Nazmul Haque; Hellevang, Helge; Johnsen, Øistein & Aagaard, Per (2014). Seismic response of CO2 saturated Red Wildmoor Sandstone under varying temperatures and pressures. EarthDoc.  (Tu G107)
• Mondol, Nazmul Haque (2014). Relationships among Porosity, Permeability and Seismic Velocity of Shales. EarthDoc. . doi: 10.3997/2214-4609.20140542
• Mondol, Nazmul Haque (2014). Understanding geophysical responses of organic-rich Hekkingen Shales in the Hammerfest Basin, the Norwegian Barents Sea.
• Narongsirikul, Sirikarn; Mondol, Nazmul Haque & Jahren, Jens (2014). Anisotropy of unconsolidated sands and its relation to induced stress response. EarthDoc.  (EarthDoc Tu P11 16)
• Ogebule, Oluwakemi Yetunde; Mondol, Nazmul Haque & Jahren, Jens (2014). Cementation, mineralogical, fluid and textural influence on petrophysical and acoustic properties of Stø reservoir sands. EarthDoc.  (Tu P11 10)
• Zadeh, M.K.; Mondol, Nazmul Haque & Jahren, Jens (2014). Compaction and rock properties properties of Cenozoic mudstones in the Quadrant 15, offshore Norway. EarthDoc.  (EarthDoc Tu 06)
• Baig, Irfan; Faleide, Jan Inge; Mondol, Nazmul Haque & Jahren, Jens (2013). Late Cenozoic erosion estimates on the Norwegian Barents Shelf from measured/modeled thermal maturity and sonic/seismic velocity data.
• Butt, A.N. & Mondol, Nazmul Haque (2013). Cenozoic exhumation estimation in the Snøhvit area, Hammerfest Basin, Norwegian Barents Sea.
• Kalani, Mohsen; Jahren, Jens; Mondol, Nazmul Haque & Faleide, Jan Inge (2013). Compaction and rock propertiies of Upper Jurassic-Lower Cretaceous mudrocks, Egersund Basin, northern North Sea.
• Mondol, Nazmul Haque (2013). Velocity anisotropy of a shallow, well characterized shale core.
• Narongsirikul, Sirikaran; Mondol, Nazmul Haque & Jahren, Jens (2013). Experimental insight into uplift effects on seismic velocities and petrophysical properties of sandstones: Implication for the Barents Sea area.
• Narongsirikul, Sirikarn; Mondol, Nazmul Haque & Jahren, Jens (2013). Acoustic, electric and petrophysical properties of mechanically compacted sands of varying mineralogy-simulating the effects of uplift on rock properties. International Workshop on Rock Physics.
• Narongsirikul, Sirikarn; Mondol, Nazmul Haque & Jahren, Jens (2013). Depletion-induced Reservoir Compaction in Shallow Overconsolidated Reservoir. EarthDoc. . doi: EarthDocWe0105
• Naseryan-Moghadam, Javad; Aagaard, Per; Mondol, Nazmul Haque & Hellevang, Helge (2013). Determination of the Biot’s coefficient for the permeability of DeGeerdalen and Knorringfjellet sandstones, two consolidated formations for CO2 sequestration in Svalbard area.
• Ogebule, Oluwakemi Yetunde; Jahren, Jens & Mondol, Nazmul Haque (2013). Relationship between compaction, textural variation, cementation and intergranular rock volume in sandstones of the SW Barents Sea.
• Rahman, J.M. & Mondol, Nazmul Haque (2013). Reservoir quality of Stø Formation in the Snøhvit field, SW Barents Sea.
• Zadeh, M. K.; Mondol, Nazmul Haque & Jahren, Jens (2013). Compaction and rock properties evaluation in southern Viking Graben.
• Baig, Irfan; Faleide, Jan Inge; Mondol, Nazmul Haque & Jahren, Jens (2012). Effects of Uplift and Erosion on Shale Compaction and Exhumation Estimates in the SW Barents Sea. GeoShale 2012.
• Moghadam, Javad Naseryan; Mondol, Nazmul Haque & Aagaard, Per (2012). Evaluation of Mechanical Strength of a Barents Sea Shale by Applying the Most Common Failure Criteria. EarthDoc.
• Mondol, Nazmul Haque (2012). Relationships among porosity, permeability and seismic velocity in mudstones and shales.
• Ndingwan, Abel Onana; Mondol, Nazmul Haque & Jahren, Jens (2012). Impact of mechanical and chemical compaction, and tectonic uplift on acoustic properties of Barents Sea shales. EarthDoc.
• Grande, Lars; Huynh, Khoa D.V.; Jostad, Hans Petter; Madshus, Christian; Johnsen, Øistein; Mondol, Nazmul Haque & Cuisiat, Fabrice (2011). Geomechanical modeling at different scales for evaluation of formation alteration as observed from Dipole Shear Radial Profiling. 1st Internation Rock Physics Workshop.
• Grande, Lars; Mondol, Nazmul Haque; Berre, Toralv; Soldal, Magnus & Madshus, Christian (2011). Stress induced velocity anisotropy in loose sands. 1st Internation Rock Physics Workshop.
• Mondol, Nazmul Haque; Fawad, Manzar; Jahren, Jens; Avseth, Per Åge & Bjørlykke, Knut (2011). Vs prediction in unconsolidated sands - Implications about shape, size, sorting and mineralogy of sand grains,.
• Mondol, Nazmul Haque; Jahren, Jens; Berre, Toralv; Grande, Lars & Bjørlykke, Knut (2011). Permeability Anisotropy in Synthetic Mudstones - An Experimental Study. (Five page extended abstract).
• Bjørlykke, Knut; Jahren, Jens; Mondol, Nazmul Haque & Thyberg, Brit Inger (2010). Sediment compaction, fluid flow and rocks properties.
• Fawad, Manzar; Mondol, Nazmul Haque; Jahren, Jens & Bjørlykke, Knut (2010). Physical Properties of Sandstones Based on Experimental Compaction.
• Fawad, Manzar; Mondol, Nazmul Haque; Jahren, Jens & Bjørlykke, Knut (2010). Seismic velocities from experimental compaction: New porosity and velocity-depth relations for sands with different textural and mineralogical composition. Show summary

  20. Manzar Fawad, Nazmul Haque Mondol, Jens Jahren & Knut Bjørlykke (2010) (extended abstract) Seismic velocities from experimental compaction: New porosity and velocity-depth relations for sands with different textural and mineralogical composition. Five page extended abstract – SEG Annual Meeting 2010, 17–22 October,Denver, USA

• Fawad, Manzar; Mondol, Nazmul Haque; Jahren, Jens & Bjørlykke, Knut (2010). Which factors control mechanical compaction in sedimentary basins? Predicting rock properties like porosity and velocity (Vp, Vs)based on experimental compaction of sands with different mineralogy, grain size, shape and sorting.

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