公开(公告)号：US11662501B2

公开(公告)日：2023-05-30

申请号：US16354684

申请日：2019-03-15

Applicant: ExxonMobil Upstream Research Company

Inventor： Guo-Shi Li ,  Hao Huang ,  Colin J. Lyttle ,  Matthias Imhof ,  Sha Miao

IPC: G01V99/00 ,  G01V1/32 ,  G06F17/14 ,  G01V1/34

CPC classification number: G01V99/005 ,  G01V1/325 ,  G01V1/345 ,  G06F17/142 ,  G01V2210/642

Abstract: Geologic modeling methods and systems disclosed herein employ fault face parameterization to constrain and improve the transformation of a faulted physical space geologic model into an unfaulted depositional space geologic model. An illustrative embodiment includes: associating a seismic image with each face of at least one fault in a subsurface region; determining a correspondence map between the seismic images for said at least one fault; parameterizing the faces using the correspondence map to match parameter value assignments for corresponding portions of the faces; creating a displacement map that draws together matching parameter values to align the corresponding portions of the faces; applying the displacement map to the geologic model to create a design space model; modifying the design space model; applying the displacement map in reverse to the modified design space model to obtain a modified geologic model; and outputting the modified geologic model.

公开(公告)号：US11531127B2

公开(公告)日：2022-12-20

申请号：US16393515

申请日：2019-04-24

Applicant: ExxonMobil Upstream Research Company

Inventor： Enru Liu ,  Matthew S. Casey ,  John E. Mayhew ,  Matthias Imhof ,  J. Clayton Bell

IPC: G06G7/48 ,  G01V1/28 ,  G06T15/08 ,  G06T17/05

Abstract: Accordingly, there are disclosed herein geologic modeling methods and systems employing reference-based inversion of seismic image volumes. An illustrative method embodiment includes: (a) obtaining a measured seismic image volume; (b) determining a reference seismic image volume based on a reference model; (c) deriving a synthesized seismic image volume from a geologic model; (d) detecting at least one geologic model region where the synthesized seismic image volume and the measured seismic image volume are mismatched; (e) finding a reference model region where the reference seismic image volume best matches the measured seismic image volume; (f) replacing content of the at least one geologic model region with content of the reference model region to obtain an improved geologic model; and (g) outputting the improved geologic model.