--> ABSTRACT: Model Building and Structural Modeling using Remotely Sensed Data, by Hodge, Dan, Mike Ohlers, Stuart Bland, Delphine Roques; #90026 (2004)
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Hodge, Dan1, Mike Ohlers2, Stuart Bland1, Delphine Roques1 
(1) Midland Valley Exploration Ltd, Glasgow, United Kingdom 
(2) NPA Group, Edenbridge, United Kingdom

ABSTRACT: Model Building and Structural Modeling using Remotely Sensed Previous HitDataNext Hit

Satellite interpretation is becoming increasingly important in onshore exploration and production in inaccessible regions. Until now the benefits have been restricted to Previous HitbasicNext Hit surface mapping and 2D spatial analysis. By combining the digital elevation model (DEM) with satellite imagery within a 3D model-building environment, a much greater range of analysis techniques is revealed to the geologist. These include: Previous HitdataNext Hit projection to depth, geometric attribute analysis, dip extraction and reconstruction of eroded strata. Combining Previous HitdataNext Hit and interpretation in such an environment not only provides a useful communication tool, but also creates a powerful workable 3D database. 
ASTER DEM (digital elevation model) Previous HitdataNext Hit and Landsat ETM Previous HitdataNext Hit acquired from Africa and the Middle East illustrate the techniques that aid interpretation and demonstrate model building workflows that were used to construct fully restorable structural models. 
Model building is an extremely valuable and much overlooked process. The simple acts of projecting and linking fault traces provided the opportunity to check fundamental geological concepts and ideas applied to the area. Model building has allowed us to gain a better understanding of the structural geology enabling us to not only evaluate prospects, but to focus on key areas of interest or uncertainty when planning field work and seismic surveys. Furthermore, a subsurface model provides valuable input when Previous HitprocessingNext Hit seismic Previous HitdataNext Hit. 
Models created from remotely sensed Previous HitdataTop can be interrogated and validated using structural modeling and restoration techniques to lower risk. Further analysis such as strain mapping and hydrocarbon systems modeling can also be applied to both the exploration and production stage.

 

AAPG Search and Discovery Article #90026©2004 AAPG Annual Meeting, Dallas, Texas, April 18-21, 2004.