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公开(公告)号:US10126450B2
公开(公告)日:2018-11-13
申请号:US15045359
申请日:2016-02-17
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Peter M. Eick , Joel Brewer
Abstract: A method for modeling and analyzing the impact of different seismic surveying and imaging techniques on a subterranean formation uses a black hole boundary condition around a particular region in the formation where at least one of the physical characteristics is unclear and may distort the seismic modeling results. The black hole boundary conditions will eliminate any energy wave that enters, exit or reflect off the region so as to avoid any image distortion caused by this region. The resulted image data is compared with the image data obtained without using the black hole boundary conditions to determine the impact of this region, and proper correction can be made to more precisely and accurately model the formation.
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公开(公告)号:US11294088B2
公开(公告)日:2022-04-05
申请号:US16833975
申请日:2020-03-30
Applicant: ConocoPhillips Company
Inventor: Chengbo Li , Chuck Mosher , Leo Ji , Joel Brewer
Abstract: A multi-stage inversion method for deblending seismic data includes: a) acquiring blended seismic data from a plurality of seismic sources; b) constructing an optimization model that includes the acquired blended seismic data and unblended seismic data; c) performing sparse inversion, via a computer processor, on the optimization model; d) estimating high-amplitude coherent energy from result of the performing sparse inversion in c); e) re-blending the estimated high-amplitude coherent energy; and f) computing blended data with an attenuated direct arrival energy.
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公开(公告)号:US10605941B2
公开(公告)日:2020-03-31
申请号:US14974060
申请日:2015-12-18
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Chengbo Li , Chuck Mosher , Leo Ji , Joel Brewer
Abstract: A multi-stage inversion method for deblending seismic data includes: a) acquiring blended seismic data from a plurality of seismic sources; b) constructing an optimization model that includes the acquired blended seismic data and unblended seismic data; c) performing sparse inversion, via a computer processor, on the optimization model; d) estimating high-amplitude coherent energy from result of the performing sparse inversion in c); e) re-blending the estimated high-amplitude coherent energy; and f) computing blended data with an attenuated direct arrival energy.
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公开(公告)号:US09817145B2
公开(公告)日:2017-11-14
申请号:US15139823
申请日:2016-04-27
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Peter Eick , Joel Brewer
Abstract: The invention relates to a downhole inertial mass seismic-source system, apparatus and method for use within a wellbore environment to provide seismic signal energy at a wellbore location. The system comprises a first inertial mass apparatus with a fluid plunger that is in contact with a first wellbore fluid chamber and a second wellbore fluid chamber, a second inertial mass apparatus with a fluid plunger in contact with the first well bore fluid chamber, a third inertial mass apparatus with a fluid plunger in contact with the second well bore fluid chamber, an Inertial Mass Control System (IMCS) connected to the first inertial mass apparatus, and a power source providing power to the Inertial Mass Control System.
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公开(公告)号:US09726769B2
公开(公告)日:2017-08-08
申请号:US14667856
申请日:2015-03-25
Applicant: CONOCOPHILLIPS COMPANY
Inventor: Peter M. Eick , Joel Brewer
CPC classification number: G01V1/005 , G01V1/0475 , G01V1/145 , G01V1/30 , G01V1/36 , G01V1/375 , G01V2210/1212 , G01V2210/1295 , G01V2210/1425 , G01V2210/61
Abstract: Imperfect separation at the higher frequencies has been observed and was eventually was tracked down to the poor GFE signal that is normally used in the inversion. The invention thus uses a “derived GFE” for each source, obtained by comparing the shot records and remove the differences, instead of the prior estimated GFE signal put out by the controller, thus accurately maximizing the separation of the data.
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