GEOLOGIC MODELS OF SUBSURFACE SEDIMENTARY VOLUMES

摘要

A 3-Dseismic image is used to construct a geologic model specifying the spatially varying grain size distribution, porosity and permeability through the volume 101. The method applies to water laid elastic sedimentary deposits of earth sedentary volumes and involves modeling steps for identifying the outline forms of geologic bodies in geologic data. The outline forms of the geologic deposits and body volume form is used to determine the spatially varying grain size distribution within the sediment deposit and is guided by the modeling assumptions about the nature and behavior of the sediment paleoflow that deposited the sediment volume 109. The geologic sediment volume is based on the grain size distribution of mineralogy and sediment burial history information and is used to determine the rock properties of porosity and permeability within the geological sedimentation deposit 101.