公开(公告)号：US20210048556A1

公开(公告)日：2021-02-18

申请号：US16541053

申请日：2019-08-14

Applicant: Chevron U.S.A. Inc.

Inventor： Tao Sun ,  Lewis Li ,  Brett M. Hern ,  Fabien J. Laugier ,  Maisha Lara Amaru ,  Ashley D. Harris ,  Morgan David Sullivan

IPC: G01V99/00 ,  G06F17/15 ,  G06F17/16

Abstract: Correlation matrices may be used to simultaneously correlate multiple wells. A correlation matrix may be generated for individual pairs of multiple wells. The values of elements of the correlation matrices may be determined based on matching between segments of the multiple wells and segments of one or more computational stratigraphic models. An N-dimensional space including an axis for individual wells may be generated. Directed walk may be performed within the N-dimensional space to generate paths representing scenarios of correlations for segments of the multiple wells.

公开(公告)号：US11249220B2

公开(公告)日：2022-02-15

申请号：US16541053

申请日：2019-08-14

Applicant: Chevron U.S.A. Inc.

Inventor： Tao Sun ,  Lewis Li ,  Brett M. Hern ,  Fabien J. Laugier ,  Maisha Lara Amaru ,  Ashley D. Harris ,  Morgan David Sullivan

IPC: G06F17/16 ,  G01V99/00 ,  G06F17/15 ,  G06F111/10

Abstract: Correlation matrices may be used to simultaneously correlate multiple wells. A correlation matrix may be generated for individual pairs of multiple wells. The values of elements of the correlation matrices may be determined based on matching between segments of the multiple wells and segments of one or more computational stratigraphic models. An N-dimensional space including an axis for individual wells may be generated. Directed walk may be performed within the N-dimensional space to generate paths representing scenarios of correlations for segments of the multiple wells.

公开(公告)号：US11320566B2

公开(公告)日：2022-05-03

申请号：US16745037

申请日：2020-01-16

Applicant: Chevron U.S.A. Inc.

Inventor： Brett M. Hern ,  Tao Sun ,  Brian Willis

IPC: G01V99/00 ,  G06K9/62 ,  G06F30/20 ,  G06V10/75 ,  G06F113/08

Abstract: A subsurface representation may define simulated subsurface configuration of a simulated subsurface region. The simulated subsurface region may include simulated wells, and the simulated subsurface configuration may define simulated correlation between the simulated wells. Subsurface configuration of wells may be compared with the simulated subsurface configuration to generate similarity maps for the wells. The similarity maps may be arranged based on spatial arrangements of the wells such that the similarity maps overlap with each other within an overlap area. Locations within the overlap area may correspond to groupings of matched simulated wells. Correlation between the wells may be determined based on the simulated correlation between the matched simulated wells.

公开(公告)号：US11263362B2

公开(公告)日：2022-03-01

申请号：US16744992

申请日：2020-01-16

Applicant: Chevron U.S.A. Inc.

Inventor： Tao Sun ,  Brett M. Hern ,  Brian Willis ,  Fabien J. Laugier ,  Maisha Lara Amaru ,  Ashley D. Harris ,  Morgan David Sullivan

IPC: G06F30/13 ,  E21B41/00

Abstract: A subsurface representation may define simulated subsurface configuration of a simulated subsurface region. The simulated subsurface region may include simulated wells, and the simulated subsurface configuration may define simulated correlation between the simulated wells. Subsurface configuration of wells may be compared with the simulated subsurface configuration to generate similarity maps for the wells. Simulated wells may be matched to the wells based on the similarity maps and the arrangement of the wells. Correlation between the wells may be determined based on the simulated correlation between the matched simulated wells.

公开(公告)号：US20210302620A1

公开(公告)日：2021-09-30

申请号：US16832641

申请日：2020-03-27

Applicant: Chevron U.S.A. Inc.

Inventor： Brett M. Hern ,  Tao Sun ,  Brian J. Willis ,  Fabien J. Laugier ,  Ashley D. Harris

IPC: G01V99/00 ,  E21B49/00

Abstract: Well information may define subsurface configuration of different wells. Marker information defining marker positions within the wells may be obtained. A dissimilarity matrix for the wells may generated, with the element values of the dissimilarity matrix determined based on comparison of corresponding subsurface configuration of the wells. A gated dissimilarity matrix may be generated from the dissimilarity matrix based on the marker positions within the wells. The elements values of the gated dissimilarity matrix corresponding to one set of marker positions and not corresponding to the other set of marker positions may be changed. Correlation between the wells may be determined based on the gated dissimilarity matrix such that correlation exists between a marker position in one well and a marker position in another well.