Conditional Simulation of the Wilmington Sand-Shale Sequence, Los Angeles Basin

by J. Jaime Gómez-Hernández, Stanford Univ, United States,
André G. Journel, Stanford Univ, United States,

Document Type: Proceeding Paper

Part of: Hydraulic Engineering


In shaly clastic reservoirs at a scale where vertical cross flow cannot be ignored the main source of heterogeneity is the apparent random geometry of the sand-shale sequence. That geometry can be characterized by a binary indicator random function and its covariance. Sequential indicator simulation (SIS) allows generating equiprobable 3-dimensional images of the sand-shale sequence conditional to prior indicator data and the prior indicator covariance model. Observed differences between these alternative images provide an assessment of spatial uncertainty and help locating target areas for additional data.

Subject Headings: Soil properties | Basins | Geometrics | Sandy soils | Fluid flow | Shale | Soil classification | Permeability (soil) | United States | Delaware | Los Angeles | California

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