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公开(公告)号：US11255991B2
公开(公告)日：2022-02-22
申请号：US15112437
申请日：2015-01-27
申请人： WESTERNGECO L.L.C.
发明人： Nicolae Moldoveanu , Olav Lien , Sudhir Pai , Leendert Combee
摘要： A system includes an unmanned marine vessel having a hull; a multi-dimensional seismic sensor array coupled with the hull, wherein the multi-dimensional seismic sensor array is configured to acquire seismic survey data in multiple directions; wherein the unmanned marine vessel comprises a power source configured to drive and provide propulsion to the unmanned marine vessel; and an umbilical cord for coupling the multi-dimensional seismic sensor array with the hull of the unmanned marine vessel, wherein the umbilical provides electrical communication between the unmanned marine vessel and the multi-dimensional seismic sensor array.
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公开(公告)号：US11169302B2
公开(公告)日：2021-11-09
申请号：US14832724
申请日：2015-08-21
申请人： WESTERNGECO L.L.C.
发明人： Shashi Menon
摘要： Computing systems and methods for geosciences collaboration are disclosed. In one embodiment, a method for geosciences collaboration includes obtaining a first set of geosciences information from a first computer system of the plurality of computer systems; distributing the first set of geosciences information from the first computer system to at least a second computer system; receiving a user input from the second computer system of the plurality of computer systems, the user input entered manually by a user; providing the user input to the first computer system; in response to providing the user input to the first computer system, receiving a revised set of geosciences information from the first computer system; and repeating the receiving a user input, the providing the user input, and the receiving the revised set of geosciences information until the revised set of geosciences information is determined to satisfy accuracy criteria.
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公开(公告)号：US10451755B2
公开(公告)日：2019-10-22
申请号：US14419205
申请日：2013-07-31
申请人： WESTERNGECO L.L.C.
发明人： Colin Thomson
IPC分类号： G01V1/30
摘要： Processing data representing a wavefield propagating through a medium by defining, based on one or more properties of a region of the medium and of the wavefield therein, a desired timestep and a desired spatial step for a discrete operator. Discrete seed operators having an initial timestep and an initial spatial step less than the desired timestep and the desired spatial step are then defined, and these seed operators are compounded to obtain an operator having a greater timestep and upscaled to obtain an operator having a greater spatial step. The compounding and upscaling are repeated until an operator having the desired timestep and the desired spatial step is obtained. The operator having the desired timestep and the desired spatial step may be applied to the data representing the wavefield propagating through a medium to propagate the data backwards in time to recreate the wavefield at earlier times.
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公开(公告)号：US10429530B2
公开(公告)日：2019-10-01
申请号：US14787967
申请日：2014-04-29
申请人： WESTERNGECO L.L.C.
摘要： Methods and apparatuses for processing marine seismic data with a process of combined deghosting and sparse τ-p transformation. The process is formulated as an optimization problem. The optimization problem has an objective function that is a weighted sum of two norms: one norm is an Lp norm of the differences between the modeled data and acquired survey wherein the modeled data are derived from a model and a set of adaptive filters; the other norm is an Lq norm of the model; and the optimization variables and solutions are the coefficients of the model and coefficients of the adaptive filters.
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公开(公告)号：US10353098B2
公开(公告)日：2019-07-16
申请号：US14308889
申请日：2014-06-19
申请人： WESTERNGECO L.L.C.
摘要： A technique includes spatially filtering a signal that is derived from a seismic acquisition. The filtering is associated with a filter length, and the filtering includes varying the filter length with frequency. The filtering may be used in connection with adaptive noise attenuation, which is applied to decomposed subbands. Furthermore, the filtering may be applied during the reconstruction of the signal from the subbands.
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公开(公告)号：US10288754B2
公开(公告)日：2019-05-14
申请号：US14389349
申请日：2013-03-29
申请人： WESTERNGECO L.L.C.
摘要： A method for removing seismic noise from an input seismic trace. The method may receive the input seismic trace. The method may receive one or more noise references for the input seismic trace. The method may receive one or more filters corresponding to the noise references. The method may apply a nonlinear function to the input seismic trace and to the one or more noise references to produce respective output signals for the input seismic trace and for the one or more noise references. The nonlinear function may be capable of determining higher-order statistics. The method may update the filters based on increasing one or more information attributes of the output signals to a predetermined threshold. The method may then filter noise corresponding to the noise references.
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公开(公告)号：US10082589B2
公开(公告)日：2018-09-25
申请号：US14714838
申请日：2015-05-18
申请人： WesternGeco L.L.C.
发明人： Johan Hauan , Rune Hagelund , Stig Solheim
CPC分类号： G01V1/3835 , G01V1/30 , G01V1/345 , G01V2210/165 , G01V2210/60 , G01V2210/74
摘要： A group of techniques can be used to determine if components of a seismic spread have deviated from a planned path during a coil or other curved and substantially circular acquisition pattern. In one aspect, and in general, the presently disclosed techniques include a computer-readable program storage medium for determining the deviation of spread array element from a planned curved path during a towed-array marine seismic survey. The method comprises: determining a nominal position of the spread array element at a given point in the planned curved path; determining the actual position of the spread array element; and performing an error analysis predicated on the nominal and actual positions.
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公开(公告)号：US09971053B2
公开(公告)日：2018-05-15
申请号：US13855610
申请日：2013-04-02
申请人： WESTERNGECO L.L.C.
CPC分类号： G01V1/3808 , G01V1/307 , G01V1/36 , G01V1/3817 , G01V2200/14 , G01V2210/72
摘要： Methods and systems for survey operations are provided. In some embodiments, crossline measurement data measured by at least one survey receiver is received. Based at least in part on a characteristic of the crossline measurement data, an option from among a plurality of candidate options is selected, where the selected option is for use in an action relating to survey of a target structure.
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公开(公告)号：US09857485B2
公开(公告)日：2018-01-02
申请号：US14207771
申请日：2014-03-13
申请人： WESTERNGECO L.L.C.
CPC分类号： G01V1/006 , G01V1/201 , G01V1/3808 , G01V1/3843 , G01V1/3861
摘要： A marine survey acquisition system. The system may include a vessel for towing a marine survey spread. The marine survey spread may include streamers, marine vibrators and a cable. The cable may be coupled to a respective streamer from among the streamers and one of the marine vibrators. The cable may power the respective streamer and the one of the marine vibrators. The one of the marine vibrators may emit energy at a high frequency range.
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公开(公告)号：US09703000B2
公开(公告)日：2017-07-11
申请号：US14714259
申请日：2015-05-16
申请人： WesternGeco L.L.C.
发明人： Nicolae Moldoveanu , Steven Fealy
IPC分类号： G01V1/38
CPC分类号： G01V1/3808
摘要： Methods for efficiently acquiring full-azimuth towed streamer survey data are described. The methods use multiple vessels to perform coil shooting.
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