公开(公告)号：US20230103043A1

公开(公告)日：2023-03-30

申请号：US17945368

申请日：2022-09-15

申请人： CGG SERVICES SAS

发明人： Gordon POOLE

IPC分类号： G01V1/30 ,  G01V1/34

摘要： A method for generating an image of a subsurface based on blended seismic data includes receiving the blended seismic data, which is recorded so that plural traces have uncontaminated parts with different uncontaminated recording time lengths, selecting plural subgroups (SG1, SG2) of traces so that each subgroup (SG1) includes only uncontaminated parts that have a same uncontaminated recording time length, processing the traces from each subgroup to generate processed traces, mapping the processed traces to a same sampling, combining the processed traces from the plural subgroups (SG1, SG2) to generate combined processed traces, and generating an image of a structure of the subsurface based on the combined processed traces.

公开(公告)号：US11555936B2

公开(公告)日：2023-01-17

申请号：US16738025

申请日：2020-01-09

申请人： CGG SERVICES SAS

发明人： Song Hou ,  Stefano Angio ,  Henning Hoeber

IPC分类号： G06N3/04 ,  G01V1/28 ,  G01V1/30 ,  G06N3/08

摘要： Property values inside an explored underground subsurface are determined using hybrid analytic and machine learning. A training dataset representing survey data acquired over the explored underground structure is used to obtain labels via an analytic inversion. A deep neural network model generated using the training dataset and the labels is used to predict property values corresponding to the survey data using the DNN model.

公开(公告)号：US11487035B2

公开(公告)日：2022-11-01

申请号：US16851825

申请日：2020-04-17

申请人： CGG SERVICES SAS

发明人： Adel Khalil ,  Carlos Alberto Da Costa Filho ,  Roberto Pereira ,  Gregório Goudel Azevedo

IPC分类号： G01V1/36 ,  G01V1/28 ,  G01V1/48 ,  G06F17/17 ,  G06T7/00

摘要： Methods and apparatuses for seismic data processing perform a least-squares reverse time migration method in which surface-attribute-independent coefficients for the surface attribute gathers are demigrated to reduce the computational cost.

公开(公告)号：US20220308245A1

公开(公告)日：2022-09-29

申请号：US17453994

申请日：2021-11-08

申请人： CGG SERVICES SAS

发明人： Hui HUANG ,  Diancheng WANG ,  Ping WANG

IPC分类号： G01V1/28 ,  G01V1/34 ,  G01V1/30

摘要： Limitations in accuracy and computing power requirements impeding conventional Kirchhoff migration and reverse time migration are overcome by using the wave-equation Kirchhoff, WEK, technique with Kirchhoff migration. WEK technique includes forward-propagating a low-frequency wavefield from a shot location among pre-defined source locations, calculating an arrival traveltime of a maximum amplitude of the low-frequency wavefield, and applying Kirchhoff migration using the arrival traveltime and the maximum amplitude.

公开(公告)号：US20220291410A1

公开(公告)日：2022-09-15

申请号：US17752913

申请日：2022-05-25

申请人： CGG SERVICES SAS

发明人： Gordon POOLE

IPC分类号： G01V1/36 ,  G01V1/28 ,  G01V1/30 ,  G01V1/38

摘要： Computing device, computer instructions and method for processing input seismic data d. The method includes receiving the input seismic data d recorded in a first domain by seismic receivers that are towed in water, the input seismic data d including pressure data and/or and particle motion data; generating a model p in a second domain to describe the input data d; processing the model p to generate an output particle motion dataset; and generating an image of the surveyed subsurface based on the output particle motion dataset.

公开(公告)号：US11441420B2

公开(公告)日：2022-09-13

申请号：US16312495

申请日：2017-09-06

申请人： CGG SERVICES SAS

发明人： Graham Spence ,  Chi Vinh Ly ,  Guy Oliver

IPC分类号： E21B49/06 ,  E21B49/00 ,  G01V99/00 ,  E21B43/26 ,  E21B21/06

摘要： Well completion is accomplished by obtaining a sample of geological material from the subsurface and generating primary data for the sample of geological material. The primary data include textural data, chemical data and mineralogical data. The primary data are used to derive secondary data for the sample of geological material, and the primary data and the secondary data are used to generate tertiary data for the sample of geological material. The tertiary data are a quantification of physical characteristics of the sample of geological material. The primary data, secondary data and tertiary data are used to determine a location of a stage along a well and an arrangement of perforation clusters in the stage.

公开(公告)号：US11353613B2

公开(公告)日：2022-06-07

申请号：US16191539

申请日：2018-11-15

申请人： CGG SERVICES SAS

发明人： Min Wang ,  Yi Xie ,  Xiaodong Wu ,  Dechun Lin

IPC分类号： G01V1/38 ,  G01V1/28 ,  G01V1/30

摘要： A seismic exploration method includes performing a true amplitude PSDM based on an initial velocity model of a subsurface formation to obtain a reflectivity model, and then a Born modeling using the reflectivity model to generate synthetic data. An image-based reflection full waveform inversion is applied to a cost function of differences between seismic data acquired over the subsurface formation and the synthetic data to update the initial velocity model. The updated velocity model enables exploring the presence of and/or assisting in the extraction of natural resources from the subsurface formation.

公开(公告)号：US10935681B2

公开(公告)日：2021-03-02

申请号：US15994273

申请日：2018-05-31

申请人： CGG SERVICES SAS

发明人： Benjamin Roure

IPC分类号： G01V1/30 ,  G01V1/36

摘要： Methods for seismic exploration of an underground formation including at least one anisotropic layer perform a joint velocity-variation-with-azimuth, VVAz, and amplitude-variation-with-azimuth, AVAz, inversion using the azimuthal angle stacks to obtain a structural representation of the underground formation. The structural representation is used to generate scenarios for exploiting resources in at least one layer of the underground formation.

公开(公告)号：US20210026029A1

公开(公告)日：2021-01-28

申请号：US17070005

申请日：2020-10-14

申请人： CGG SERVICES SAS

发明人： Gordon POOLE

IPC分类号： G01V1/36 ,  G01V1/28 ,  G01V1/30 ,  G01V1/38

摘要： Computing device, computer instructions and method process input seismic data d recorded in a first domain by seismic receivers that travel in water, the input seismic data d including pressure and particle motion measurements, including up-going and down-going wave-fields. A model p is generated in a second domain by solving an inverse problem for the input seismic data d, wherein applying an L transform to the model p describes the input data d. An L′ transform, which is different from the L transform, is then applied to the model p to obtain an output seismic data in the first domain, the output seismic data having a characteristic imparted by the transform L′. The characteristic is related to pressure wave-fields and/or particle motion wave-fields interpolated at positions in-between the input seismic receivers. An image of the surveyed subsurface is generated based on the output seismic dataset.

公开(公告)号：US20200379135A1

公开(公告)日：2020-12-03

申请号：US16738025

申请日：2020-01-09

申请人： CGG SERVICES SAS

发明人： Song HOU ,  Stefano ANGIO ,  Henning HOEBER

IPC分类号： G01V1/28 ,  G06N3/04 ,  G06N3/08 ,  G01V1/30

摘要： Property values inside an explored underground subsurface are determined using hybrid analytic and machine learning. A training dataset representing survey data acquired over the explored underground structure is used to obtain labels via an analytic inversion. A deep neural network model generated using the training dataset and the labels is used to predict property values corresponding to the survey data using the DNN model.