The University of Oslo is currently closed, and disputations will therefore be streamed directly using Zoom. The host will moderate the digital issues while the defense moderator chairs the defense.
Trial lecture
Horizontal Stress: Controls, Measurement and Estimation from Pre-Drill to Post-production
Conferral summary
Leting etter, og produksjon av hydrokarboner (råolje og naturgass) fra lett tilgjengelige felt sør på Norsk kontinentalsokkel har siden slutten av 1960-tallet vært med å forsyne verdens energibehov. Leting etter nye olje- og gassforekomster beveger seg derfor nå nordover til områder som har vært utsatt for issmelting og oppløfting. I denne avhandlingen tas det i bruk laboratorieeksperimenter for å studere endringer i akustiske og petrofysiske egenskaper i bergarter som følge av oppløftingsprosesser.
Main research findings
Popular scientific article about Narongsirikul`s dissertation:
Short about the thesis
Hydrocarbons in easily accessible areas have been explored on the Norwegian continental shelf, with much of it having been tapped out to supply the world’s energy demand. The growing consumption and demand has driven exploration to continue in harsher and more challenging areas towards the northern hemisphere. These areas have been known to be affected, both in the present day, and in its geological history by deglaciation. As the ice melted, the buried sediment was uplifted due to an isostatic rebound.
The methods and knowhow commonly applied for exploring and developing hydrocarbons in more common areas without such the effect, may not be sufficiently used to apply in the uplifted areas.
This study realized a potential to fill in the knowledge gaps with laboratory experiments, required for better understanding stress release affecting acoustic and petrophysical data. On a separate but related subject, this thesis also outlines the results from laboratory measurements and from model calculations performed on reservoir fluids. The data from both studies are important input parameters used during basin modelling, and seismic and rock physics modelling studies for resource evaluation. It can also aid in reducing risks during hydrocarbons in-place and remaining oil reserve evaluations.
Photo and other information:
Press photo: Sirikarn Narongsirikul, portrait; 400px. Photo: Private
Other photo material: Figure with description and credit as specified in the article above, size 450px.