公开(公告)号：US11187071B2

公开(公告)日：2021-11-30

申请号：US16511795

申请日：2019-07-15

Applicant: CHEVRON U.S.A. INC.

Inventor： Yang Luo ,  Leonard Lin Zhang ,  Chaoshun Hu ,  Chunling Wu

IPC: E21B47/003 ,  G01H9/00 ,  E21B47/12 ,  E21B47/09

Abstract: Systems and methods for estimating reservoir productivity as a function of position in a subsurface volume of interest are disclosed. The systems and methods may: obtain subsurface data and well data corresponding to a subsurface volume of interest; obtain a parameter model; use the subsurface data and the well data to generate multiple production parameter maps; apply the parameter model to the multiple production parameter maps to generate refined production parameter values; generate multiple refined production parameter graphs; display the multiple refined production parameter graphs; generate one or more user input options; receive a defined well design and the one or more user input options selected by a user to generate limited production parameter values; generate a representation of estimated reservoir productivity as a function of position in the subsurface volume of interest using the defined well design and visual effects; and display the representation.

公开(公告)号：US20240192390A1

公开(公告)日：2024-06-13

申请号：US18062989

申请日：2022-12-07

Applicant: Chevron U.S.A. Inc.

Inventor： Guojian Shan ,  Jingru Chen ,  Leonard Lin Zhang

IPC: G01V1/30 ,  G01V1/28

CPC classification number: G01V1/303 ,  G01V1/282

Abstract: A method is described for determining subsurface earth properties using a full waveform inversion that solves the problem of cycle skipping. The method uses cross-correlation, time shifting, and decorrelation as part of the full waveform inversion to find the data residual that is inverted to calculate the model residual. The method is executed by a computer system.

公开(公告)号：US20200018149A1

公开(公告)日：2020-01-16

申请号：US16511795

申请日：2019-07-15

Applicant: CHEVRON U.S.A. INC.

Inventor： Yang Luo ,  Leonard Lin Zhang ,  Chaoshun Hu ,  Chunling Wu

IPC: E21B47/00 ,  E21B47/09 ,  E21B47/12 ,  G01H9/00

Abstract: Systems, methods, and storage media for detecting a given subsurface event in a subsurface volume of interest are disclosed. Exemplary implementations may: receive a subsurface fiber optic data set; receive a sensor data set using one or more sensors; constrain the subsurface fiber optic data set based on a given parameter value of a given parameter within a certain range to generate a constrained subsurface fiber optic data set; use sets of models to refine the constrained subsurface fiber optic data set to generate a refined subsurface fiber optic data set; estimate an event location of the given subsurface event based on the refined subsurface fiber optic data set; and estimate an origin time based on the event location.