公开(公告)号：US11733424B2

公开(公告)日：2023-08-22

申请号：US16945486

申请日：2020-07-31

Applicant: CHEVRON U.S.A. INC.

Inventor： Shuxing Cheng ,  Zhao Zhang ,  Kellen Leigh Gunderson ,  Reynaldo Cardona

IPC: G06N20/00 ,  G01V99/00 ,  G06F30/27 ,  G06F113/08

CPC classification number: G01V99/005 ,  G06F30/27 ,  G06N20/00 ,  G06F2113/08

Abstract: Systems, devices, and methods are disclosed for identifying subsurface features as a function of position in a subsurface volume of interest. A computer-implemented method may include obtaining training subsurface data and corresponding training subsurface feature data; obtaining an initial subsurface feature model including tiers of elements; generating a conditioned subsurface feature model by training the initial subsurface feature model using the training subsurface data and the corresponding training subsurface feature data; and storing the conditioned subsurface feature model in the non-transient electronic storage.

公开(公告)号：US11262469B2

公开(公告)日：2022-03-01

申请号：US16529870

申请日：2019-08-02

Applicant: Chevron U.S.A. Inc.

Inventor： Prasenjit Roy ,  Anandaroop Ray ,  Reynaldo Cardona ,  David C. Bartel ,  Jacob G. Tesfaye

IPC: G01V1/30 ,  G01V1/34

Abstract: A method is described for seismic amplitude analysis including receiving a seismic dataset representative of a subsurface volume of interest wherein the seismic dataset includes an angle or angle stack dimension; select a plurality of sets of sub-cubes in the seismic dataset wherein each set of sub-cubes includes a plurality of the angles or the angle stacks; compute standard score statistics for each of the plurality of sub-cubes; identify amplitude variation with angle (AVA) anomalies based on the standard score statistics for each of the set of sub-cubes; classify the AVA anomalies to generate classified AVA anomalies; and displaying, on a user interface, the classified AVA anomalies as a graphical display. The method is executed by a computer system.