公开(公告)号：US20220196863A1

公开(公告)日：2022-06-23

申请号：US17131072

申请日：2020-12-22

Applicant: Landmark Graphics Corporation

Inventor： Xuan Nam Nguyen ,  Xuewei Tan

IPC: G01V1/34 ,  G01V1/30

Abstract: A method includes receiving a seismic data volume comprising seismic information of subterranean formations and receiving a set of seismic traces of the seismic data volume. The method also includes, determining, along each seismic trace of the set of seismic traces, a set of seed points comprising minimum or maximum onsets. Further, the method includes sorting the set of seed points into a sorted set of seed points by absolute amplitude values of the set of seed points. Furthermore, the method includes generating a horizon representation of every seismic event in the seismic data volume by automatically tracking horizons throughout an entirety of the seismic data volume from the sorted set of seed points in an order of the absolute amplitude values of the sorted set of seed points. Additionally, the method includes generating a graphical user interface that includes the horizon representation for display on a display device.

公开(公告)号：US20230117096A1

公开(公告)日：2023-04-20

申请号：US17505033

申请日：2021-10-19

Applicant: Landmark Graphics Corporation

Inventor： Xuan Nam Nguyen ,  Alejandro Jaramillo

IPC: G01V1/30

Abstract: Hydrocarbon exploration and extraction can be facilitated by determining fault surfaces from fault attribute volumes. For example, a system described herein can receive a fault attribute volume for faults in a subterranean formation determined using seismic data. The fault attribute volume may include multiple traces with trace locations. The system can determine a set of fault samples for each trace location. Each fault sample can include fault attributes such as a depth value, an amplitude value, and a vertical thickness value. The system can determine additional fault attributes such as a dip value and an azimuth value for each fault sample of each trace location. The system can determine fault surfaces for the faults using the fault samples and fault attributes. The system can then output the fault surfaces for use in a hydrocarbon extraction operation.

公开(公告)号：US20230358910A1

公开(公告)日：2023-11-09

申请号：US17738247

申请日：2022-05-06

Applicant: Landmark Graphics Corporation

Inventor： Xuan Nam Nguyen ,  Sinan Tufekci ,  Alejandro Jaramillo

IPC: E21B44/00 ,  G01V1/30 ,  E21B49/00

CPC classification number: G01V1/301 ,  E21B44/00 ,  E21B49/00 ,  E21B2200/22 ,  G01V2210/642

Abstract: The disclosure presents processes to automatically generate one or more set of fault segments from a fault plane pointset. The processes can identify a predominant direction and derive a set of fault segments from the fault plane pointset, where the fault segments are generated by using slices of data from the fault plane pointset that are perpendicular to the predominant direction. For each slice of data, the fault segments can be analyzed with neighboring fault segments to determine if they are overlapping. Fault segments that block or overlap other fault segments can be assigned to a different subset of fault segments from the underlying fault segments. Gaps in the fault plane pointset, and the resulting set of fault segments, can be filled in by merging neighboring fault segments above and below the gap if the neighboring fault segments satisfy a criteria for filling the gap.

公开(公告)号：US11454734B2

公开(公告)日：2022-09-27

申请号：US17028735

申请日：2020-09-22

Applicant: LANDMARK GRAPHICS CORPORATION

Inventor： Xuan Nam Nguyen

IPC: G01V1/30

Abstract: Systems and methods are provided for a horizon patch extraction process and in particular, to receiving seismic trace data of a plurality of seismic events of a subterranean volume, selecting a first seismic trace based on the seismic trace data of the plurality of seismic events, the first seismic trace including a plurality of seismic onsets, determining a depth, an amplitude, and a first thickness of a first seismic onset of the first seismic trace, determining a second thickness between the first seismic onset and a second seismic onset, determining a third thickness between the first seismic onset and a third seismic onset, and generating a horizon patch based on the depth, the amplitude, and the first thickness of the first seismic onset, the second thickness between the first seismic onset and the second seismic onset, and the third thickness between the first seismic onset and the third seismic onset.

公开(公告)号：US12287442B2

公开(公告)日：2025-04-29

申请号：US17738247

申请日：2022-05-06

Applicant: Landmark Graphics Corporation

Inventor： Xuan Nam Nguyen ,  Sinan Tufekci ,  Alejandro Jaramillo

IPC: G01V1/30 ,  E21B44/00 ,  E21B49/00 ,  G06F17/18 ,  G06F30/20

Abstract: The disclosure presents processes to automatically generate one or more set of fault segments from a fault plane pointset. The processes can identify a predominant direction and derive a set of fault segments from the fault plane pointset, where the fault segments are generated by using slices of data from the fault plane pointset that are perpendicular to the predominant direction. For each slice of data, the fault segments can be analyzed with neighboring fault segments to determine if they are overlapping. Fault segments that block or overlap other fault segments can be assigned to a different subset of fault segments from the underlying fault segments. Gaps in the fault plane pointset, and the resulting set of fault segments, can be filled in by merging neighboring fault segments above and below the gap if the neighboring fault segments satisfy a criteria for filling the gap.

公开(公告)号：US11965997B2

公开(公告)日：2024-04-23

申请号：US17505033

申请日：2021-10-19

Applicant: Landmark Graphics Corporation

Inventor： Xuan Nam Nguyen ,  Alejandro Jaramillo

IPC: G01V1/30

CPC classification number: G01V1/301 ,  G01V1/306 ,  G01V1/302 ,  G01V2210/65

Abstract: Hydrocarbon exploration and extraction can be facilitated by determining fault surfaces from fault attribute volumes. For example, a system described herein can receive a fault attribute volume for faults in a subterranean formation determined using seismic data. The fault attribute volume may include multiple traces with trace locations. The system can determine a set of fault samples for each trace location. Each fault sample can include fault attributes such as a depth value, an amplitude value, and a vertical thickness value. The system can determine additional fault attributes such as a dip value and an azimuth value for each fault sample of each trace location. The system can determine fault surfaces for the faults using the fault samples and fault attributes. The system can then output the fault surfaces for use in a hydrocarbon extraction operation.

公开(公告)号：US11733416B2

公开(公告)日：2023-08-22

申请号：US17131072

申请日：2020-12-22

Applicant: Landmark Graphics Corporation

Inventor： Xuan Nam Nguyen ,  Xuewei Tan

IPC: G01V1/34 ,  G01V1/30

CPC classification number: G01V1/345 ,  G01V1/301 ,  G01V2210/643

Abstract: A method includes receiving a seismic data volume comprising seismic information of subterranean formations and receiving a set of seismic traces of the seismic data volume. The method also includes, determining, along each seismic trace of the set of seismic traces, a set of seed points comprising minimum or maximum onsets. Further, the method includes sorting the set of seed points into a sorted set of seed points by absolute amplitude values of the set of seed points. Furthermore, the method includes generating a horizon representation of every seismic event in the seismic data volume by automatically tracking horizons throughout an entirety of the seismic data volume from the sorted set of seed points in an order of the absolute amplitude values of the sorted set of seed points. Additionally, the method includes generating a graphical user interface that includes the horizon representation for display on a display device.