AUTOMATIC TYING STRUCTURE MAPS OF SUBSURFACE HORIZONS TO WELL-DERIVED ORIENTATION INFORMATION

WIPO Patent Application WO/2024/020763

A1

Methods are disclosed for automatically integrating subsurface structural maps with strike and dip information measured in subsurface wells. The method includes obtaining a seismic image volume for a subsurface region of interest and a well log for each of a plurality of wellbores (120) penetrating the subsurface region of interest. Further, the method includes determining a seismic map of a geological surface (108) from the seismic image volume, wherein the seismic map comprises an estimated depth and an estimated vector normal to the seismic map at a plurality of horizontal locations and determining an intersection point for each of the plurality of wellbores (120) with the geological surface (108). Additionally, the method includes forming a cost function based, at least in part, on the seismic map and the intersection points of the plurality of wellbores (120) and constructing a subsurface map by solving a constrained optimization problem based on the cost function. A non-transitory computer readable medium storing instructions and a system are also disclosed.

MA YUE (CN)
JI XU (SA)
LI YUBING (CN)
LUO YI (SA)

PCT/CN2022/107763

February 01, 2024

July 26, 2022

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SAUDI ARABIAN OIL CO (SA)
ARAMCO FAR EAST BEIJING BUSINESS SERVICES CO LTD (CN)

G01V1/30; E21B44/00; G01V11/00

US20130085676A1	2013-04-04
US20200011167A1	2020-01-09
CN109267996A	2019-01-25
CA2804354A1	2014-08-01
US20080236270A1	2008-10-02
US20200033501A1	2020-01-30

BEIJING ZHIXIA LAW FIRM (CN)

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