公开(公告)号：US11880009B2

公开(公告)日：2024-01-23

申请号：US17380103

申请日：2021-07-20

Applicant: CGG SERVICES SAS

Inventor： Zhiguang Xue ,  Zhigang Zhang ,  Ping Wang

IPC: G01V1/30 ,  G01V1/36 ,  G01V1/28

CPC classification number: G01V1/308 ,  G01V1/282 ,  G01V1/36 ,  G01V2210/42 ,  G01V2210/51

Abstract: Methods and devices according to various embodiments perform full-wave inversion jointly for datasets acquired at different times over the same underground formation using a time-lag cost function with target regularization terms. This approach improves the 4D signal within reservoirs and suppresses 4D noise outside.

公开(公告)号：US20230350089A1

公开(公告)日：2023-11-02

申请号：US17734322

申请日：2022-05-02

Applicant: CGG SERVICES SAS

Inventor： Andrew RATCLIFFE ,  Cris HENSTOCK ,  Wenlei GAO ,  Nabil MASMOUDI

IPC: G01V1/30 ,  G01V1/28

CPC classification number: G01V1/30 ,  G01V1/282 ,  G01V2210/65

Abstract: Seismic data is processed using a full-waveform inversion using a model with a pseudo-δ layer. The presence of the pseudo-δ layer in the model enables handing the difference at the water bottom between acoustically generated synthetic data and seismic data that corresponds to an elastic medium. The pseudo-δ layer may be less than 100 m thick and/or may be located directly underneath the water bottom. The pseudo-δ layer may have a negative value for S and a null value for ϵ (δ and ϵ being Thomsen's anisotropy parameters).

公开(公告)号：US20220369504A1

公开(公告)日：2022-11-17

申请号：US17735765

申请日：2022-05-03

Applicant: CGG SERVICES SAS

Inventor： Laurent CLERC ,  Jean-Yves BLANC ,  Emilie LELOGEAIS

IPC: H05K7/20

Abstract: A system for immersion cooling electronic components includes a cylindrical container having a circular cross section, a cooling element disposed in the cylindrical container and containing a first cooling fluid, and a volume of a second cooling fluid disposed in the cylindrical container and in contact with the cooling element for exchange of heat between the second cooling fluid and the first cooling fluid, the second cooling fluid comprising an immersion cooling fluid. A heat generating electronic component is disposed within the cylindrical container and at least partially immersed in the second cooling fluid for exchange of heat between the electronic component and the second cooling fluid, and a fluid circulating device is disposed in the second cooling fluid to direct a flow of the second cooling fluid through the electronic component and over the cooling element.

公开(公告)号：US20220308246A1

公开(公告)日：2022-09-29

申请号：US17380103

申请日：2021-07-20

Applicant: CGG SERVICES SAS

Inventor： Zhiguang XUE ,  Zhigang ZHANG ,  Ping WANG

IPC: G01V1/30 ,  G01V1/36 ,  G01V1/28

Abstract: Methods and devices according to various embodiments perform full-wave inversion jointly for datasets acquired at different times over the same underground formation using a time-lag cost function with target regularization terms. This approach improves the 4D signal within reservoirs and suppresses 4D noise outside.

公开(公告)号：US11442186B2

公开(公告)日：2022-09-13

申请号：US16633787

申请日：2018-08-29

Applicant: CGG SERVICES SAS

Inventor： Bernard Deschizeaux ,  Vetle Vinje ,  Carl-Inge Nilsen

IPC: G01V1/28

Abstract: A method for correcting physical positions of seismic sensors and/or seismic sources for a seismic data acquisition system. The method includes estimating a respective energy generated by each source element, which belongs to a source array; calculating a respective energy recorded by each individual seismic sensor, which belongs to a composite receiver; summing, for each individual seismic sensor, all the generated energies from the all the source elements; estimating a model of direct arrival waves that propagate from the source elements to the individual seismic sensors; calculating positions of the individual seismic sensors based on the model of direct arrival waves; comparing calculated positions of the individual seismic sensors with observed positions of the individual seismic sensors; selecting a best calculated position for each of the individual seismic sensors based on an objective function; and correcting the observed positions of the individual seismic sensors with corresponding best calculated positions.

公开(公告)号：US11415718B2

公开(公告)日：2022-08-16

申请号：US17070005

申请日：2020-10-14

Applicant: CGG SERVICES SAS

Inventor： Gordon Poole

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

Abstract: 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：US20220221609A1

公开(公告)日：2022-07-14

申请号：US17342799

申请日：2021-06-09

Applicant: CGG SERVICES SAS

Inventor： Hanyuan PENG ,  Jeremie MESSUD ,  Céline LACOMBE ,  Paulien JEUNESSE

IPC: G01V1/38 ,  G01V1/30 ,  G06N3/04

Abstract: A DUnet engine produces a processed image of seismic data acquired over an underground formation. The DUnet engine includes: a contractive path that performs multilayer convolutions and contraction to extract a code from the seismic data input to the DUnet, an expansive path configured to perform multilayer convolutions and expansion of the code, using features provided by the contractive path through skip connections, and a model level that performs multilayer convolutions on outputs of the contractive path and expansive paths to produce the processed image and/or an image that is a difference between the processed image and the seismic data. A fraction of the seismic data may be selected for training the DUnet engine using an anchor method that automatically extends an initial seismic data subset, based on similarity measurements. A reweighting layer may further combine inputs received from layers of the DUnet model to preserve signal amplitude trend.

公开(公告)号：US11353611B2

公开(公告)日：2022-06-07

申请号：US15507986

申请日：2015-09-09

Applicant: CGG SERVICES SAS

Inventor： Gordon Poole ,  Simon King

IPC: G01V1/36 ,  G01V1/38

Abstract: Computing device, computer instructions and method for processing energy at a free-surface reflection relating to an air-water interface. The method includes receiving input seismic data recorded with seismic sensors; receiving wave-height data that describes an actual shape of a top surface of a body of water; processing up-going energy at a receiver and down-going energy following a reflection at the sea-surface, using the input seismic data and a linear operator modified to take into account the wave-height data; and generating an image of the subsurface based on the up-going energy or the down-going energy or a combination of the input seismic data and one of the up-going or down-going energy.

公开(公告)号：US11215721B2

公开(公告)日：2022-01-04

申请号：US15329458

申请日：2015-08-18

Applicant: CGG SERVICES SAS

Inventor： Benjamin Roure

IPC: G01V1/48 ,  G01V1/28 ,  G01V1/30

Abstract: PP and PS seismic data are jointly inverted in a stratigraphic grid, using different time axes for PP and PS reflections. A ratio of PP and of PS waves'travel times inside a same layer cell maintained to be a function of a ratio of a P-wave propagation velocity and of an S-wave propagation velocity therein. Since PP and PS seismic amplitudes and travel times are due to elastic properties of the same structure, they can be inverted at the same time to provide better estimates of these elastic properties.

公开(公告)号：US20210356614A1

公开(公告)日：2021-11-18

申请号：US16927364

申请日：2020-07-13

Applicant: CGG SERVICES SAS

Inventor： Benjamin ROURE

IPC: G01V1/30 ,  G06F17/14

Abstract: Methods and apparatuses characterize fracture orientations in orthorhombic adjacent layer. Seismic data with azimuthal coverage enables calculating Fourier coefficients of reflectivity at an interface between the orthorhombic adjacent layers. The phases of 2nd and 4th FCs may be used to infer the fracture orientations in the orthorhombic adjacent layers. Analysis of 2nd and 4th Fourier coefficients' phases for different incidence angles may indicate that the fracture orientations in the orthorhombic adjacent layers are aligned, orthogonal, at 45°, that one of the layers is isotropic, etc.