公开(公告)号：US11927710B2

公开(公告)日：2024-03-12

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

CPC分类号： G01V1/36 ,  G01V1/282 ,  G01V1/30 ,  G01V1/38 ,  G01V2210/1293 ,  G01V2210/1423 ,  G01V2210/32 ,  G01V2210/47 ,  G01V2210/56

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：US10371844B2

公开(公告)日：2019-08-06

申请号：US15535159

申请日：2015-12-18

申请人： CGG SERVICES SAS

发明人： Gordon Poole ,  Can Peng

IPC分类号： G01V1/37 ,  G01V1/36

摘要： Methods for processing seismic data acquired with non-impulsive moving sources are provided. Some methods remove cross-talk noise from the seismic data using emitted signal data and an underground formation's response estimate, which may be iteratively enhanced. Some methods perform resampling before a spatial or a spatio-temporal inversion. Some methods compensate for source's motion during the inversion, and/or are usable for multiple independently moving sources.

公开(公告)号：US10338256B2

公开(公告)日：2019-07-02

申请号：US15610980

申请日：2017-06-01

申请人： CGG SERVICES SAS

发明人： Gordon Poole ,  Simon King

IPC分类号： G01V1/36 ,  G01V1/38

摘要： Methods and systems for processing data acquired using a variable-depth streamer, obtain up-going and down-going wavefields at a predetermined datum, and use them to identify multiples included in the up-going wavefield. An image of a geological formation under the seabed is then generated using the data from which the multiples have been removed, and/or the multiples.

公开(公告)号：US10976457B2

公开(公告)日：2021-04-13

申请号：US16913385

申请日：2020-06-26

申请人： CGG SERVICES SAS

发明人： James Cooper ,  Andrew Ratcliffe ,  Gordon Poole

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

摘要： Methods and apparatuses for seismic exploration of an underground structure obtain improved images by integrating partial match filtering in an FWI. Filtered (auxiliary) data replaces one of the observed data and the synthetic data in the FWI's objective function to avoid cycle skipping.

公开(公告)号：US10345472B2

公开(公告)日：2019-07-09

申请号：US15527122

申请日：2015-11-24

申请人： CGG SERVICES SAS

发明人： Chris Davison ,  Gordon Poole ,  Ziqin Yu ,  Yuan Ni

IPC分类号： G01V1/36 ,  G01V1/38

摘要： A method for estimating a time variant signal representing a seismic source obtains seismic data recorded by at least one receiver and generated by the seismic source, the recorded seismic data comprising direct arrivals and derives the time variant signal using an operator that relates the time variant signal to the acquired seismic data, the operator constrained such that the time variant signal is sparse in time.

公开(公告)号：US11550072B2

公开(公告)日：2023-01-10

申请号：US17394543

申请日：2021-08-05

申请人： CGG SERVICES SAS

发明人： Gordon Poole ,  Henning Hoeber ,  Adel Khalil

IPC分类号： G01V1/36 ,  G01V1/32 ,  G01V1/28

摘要： A non-blended dataset related to a same surveyed area as a blended dataset is used to deblend the blended dataset. The non-blended dataset may be used to calculate a model dataset emulating the blended dataset, or may be transformed in a model domain and used to derive sparseness weights, model domain masking, scaling or shaping functions used to deblend the blended dataset.

公开(公告)号：US10345469B2

公开(公告)日：2019-07-09

申请号：US15409938

申请日：2017-01-19

申请人： CGG SERVICES SAS

发明人： Gordon Poole

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

摘要： Computing device, computer instructions and method for correcting an image, of a surveyed surface, due to a free-surface reflection. The method includes calculating a free surface reflection operator for a seismic source displaced in water based on a position of the source, and an air-water interface datum; receiving recorded seismic data d recorded with seismic sensors (r), wherein the recorded seismic data is associated with a pressure and/or a particle motion produced by a seismic wave in earth; correcting the recorded seismic data d based on the free surface reflection operator to obtain transformed seismic data; and generating an image of the surveyed subsurface, based on the transformed seismic data, wherein the image is indicative of various layers of the earth. The free surface reflection operator varies while a source signal is being emitted by the source.

公开(公告)号：US11255992B2

公开(公告)日：2022-02-22

申请号：US16458393

申请日：2019-07-01

申请人： CGG SERVICES SAS

发明人： Gordon Poole ,  Simon King

IPC分类号： G01V1/36 ,  G01V1/28 ,  G01V1/37

摘要： A method for de-blending seismic data associated with an interface located in a subsurface of the earth, includes receiving blended seismic data E generated by firing N source arrays according to a pre-determined sequence Seq; selecting N sub-datasets SDn from the blended seismic data E; interpolating each selected sub-dataset SDn to reference positions ref, where the blended seismic data E is expected to be recorded, to generate interpolated data k; de-blending, in a processor, the interpolated data k to generate de-blended data o; and generating an image of the interface of the subsurface based on the de-blended data o.

公开(公告)号：US11415718B2

公开(公告)日：2022-08-16

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：US11353611B2

公开(公告)日：2022-06-07

申请号：US15507986

申请日：2015-09-09

申请人： CGG SERVICES SAS

发明人： Gordon Poole ,  Simon King

IPC分类号： G01V1/36 ,  G01V1/38

摘要： 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.