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INF 136

Digital Mapping and 3D Visualization/Modelling of Subsurface Geology Using ArcGIS 9.2 and Well Log Data

Abstract: This is a step-by-step instruction manual of digital mapping and 3D visualization/modelling of subsurface geology using ESRI ArcGIS software and well log data. ArcGIS makes it possible to derive almost all of the building blocks for 3D visualization/modelling, including 3D wellbores, geological surfaces, cross-sections, fence diagrams, block diagrams, faults and geological solids, from a single shapefile with well log data, including well locations (x and y coordinates) and picks for geological formation tops (z value). The ArcGIS components include ArcMap, ArcScene and ArcCatalog applications and extensions, including 3D Analyst, Spatial Analyst and a third-party extension called XTools Pro that was developed by Data East, LLC of Russia. Simulated well log data, including formation picks and interpolated surfaces, derived from the Peace River Arch region in northwestern Alberta, are provided to assist with using the manual. Base map data, including rivers, roads, urban areas and a satellite image, are also included as an exercise. Place Keywords 72e 72l 72m 73d 73e 73l 73m 74d 74e 74l 74m 82g 82h 82i 82j 82n 82o 82p 83a 83b 83c 83d 83e 83f 83g 83h 83i 83j 83k 83l 83m 83n 83o 83p 84a 84b 84c 84d 84e 84f 84g 84h 84i 84j 84k 84l 84m 84n 84o 84p alberta canada Theme Keywords bedrock bedrock geology cross sections geological mapping geology gis

Mei, S.  2008-04-14