3D modeling of Clinoform geometries and photogrammetric analyses in the Eocene Sobrarbe delta complex

Methods include:

  • Building a 3D photogrammetric model of a large-scale deltaic complex
  • Photogrammetric analyses of clinoform surfaces and sandstone body geometries
  • Linking previous sedimentological logging and facies analysis to large-scale development
  • Modelling of clinoform development and synthetic seismic modelling of clinoform surfaces

The Sobrarbe delta complex constitutes a succession of prograding deltaic-shelf prism scale clinoforms marking a significant portion of the Ainsa Basin infill. Clinoforms are an integral feature in sedimentary systems and develop on several different scales, and their shape and size are influenced by a complex interaction of several different factors. From economic and academic perspectives, there is much interest in clinoforms and controls on clinoform development as they are often associated with the main sand-delivery system to basins. The clinoforms in the Sobrarbe delta have developed on a scale which allows for detailed observations of several complete clinothem bodies making it an outstanding location to gain an in-depth understanding of both large scale geometries and detailed facies descriptions.

The project aims to better understand what controls the shape, size and geometries of clinoforms. Using a photogrammetric model, which provides a 3D view of the outcrop, this study will make a detailed analysis of clinoform surfaces, potentially adding to or improving previous work done. Detailed study of lithology and sedimentary characteristics of the outcrop will be made and linked to previous facies analysis to provide a comprehensive overview of the lateral facies variations in the system.

The results will then be input into seismic modelling to analyze 3D variations in reservoir characteristics, understand controls on development of geometries and generate synthetic seismic sections of the data to analyze detectability, resolution and illumination of clinoform surfaces and sandstone bodies on seismic data.

The study does not include fieldwork but an eventual trip to the locality in combination with a field-course GEO4011 is a likely possibility.

The student will learn:
Photogrammetric model building and analysis, reservoir modelling and creation of synthetic seismic, sedimentological and depositional environment reconstruction, academic writing.

Published Nov. 21, 2017 3:08 PM - Last modified Mar. 2, 2018 11:33 AM

Scope (credits)