Invention Grant
- Patent Title: System and method for optimizing hydrocarbon production from subsurface reservoirs
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Application No.: US16516016Application Date: 2019-07-18
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Publication No.: US11150377B2Publication Date: 2021-10-19
- Inventor: Gary Michael Hoversten , Michael Commer
- Applicant: Chevron U.S.A. Inc. , The Regents of the University of California
- Applicant Address: US CA San Ramon; US CA Oakland
- Assignee: Chevron U.S.A. Inc.,The Regents of the University of California
- Current Assignee: Chevron U.S.A. Inc.,The Regents of the University of California
- Current Assignee Address: US CA San Ramon; US CA Oakland
- Agency: Sheppard, Mullin, Richter & Hampton LLP
- Main IPC: G01V3/38
- IPC: G01V3/38 ; E21B49/00 ; G01V3/30 ; E21B41/00

Abstract:
A method is described for subsurface hydrocarbon reservoir characterization including receiving a time-lapse electromagnetic (EM) dataset and a flow dataset; inverting the time-lapse EM dataset using a parametric inversion that models steel well casings to determine a volume of fluid-changed reservoir; inverting the time-lapse EM dataset and the flow dataset using a joint inversion that honors the volume of the fluid-changed reservoir to determine relative permeability and capillary pressure; and characterizing flow characteristics in the volume of the fluid-changed reservoir. The method may be executed by a computer system.
Public/Granted literature
- US20210018647A1 SYSTEM AND METHOD FOR OPTIMIZING HYDROCARBON PRODUCTION FROM SUBSURFACE RESERVOIRS Public/Granted day:2021-01-21
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