公开(公告)号：US10422906B2

公开(公告)日：2019-09-24

申请号：US15120849

申请日：2015-03-02

Applicant: WESTERNGECO L.L.C.

Inventor： Daniele Boiero

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

Abstract: Systems, methods, and media for modeling and filtering noise in seismic surveys are disclosed. Methods, systems, and computer program products in accordance with the present disclosure perform operations including obtaining seismic information of a region resulting from a source waveform applied to the region. The operations also include obtaining an estimate of visco-elastic properties of a near-surface of the region. The operations further include determining an estimate of propagation of guided waves in the region based on the estimate of visco-elastic properties of a near-surface of the region. Additionally, the operations include determining a model of the guided waves in the near-surface of the region using the estimate of propagation of the guided waves and an estimate of the source waveform. Moreover the operations include determining a filtered output of the seismic information by removing the model of the guided waves from the seismic information.

公开(公告)号：US10422898B2

公开(公告)日：2019-09-24

申请号：US14605641

申请日：2015-01-26

Applicant: WESTERNGECO L.L.C.

Inventor： Ralf Ferber

IPC: G01V1/30 ,  G01V1/28 ,  G01V1/38

Abstract: Described herein are implementations of various technologies for a method for seismic data processing. The method may receive seismic data for a region of interest. The seismic data may be acquired in a seismic survey. The method may receive a summation that is based on a particle motion velocity component of a seismic wavefield in the vertical direction and the pressure component of the seismic wavefield. The method may predict an upgoing pressure component of the seismic wavefield for the region of interest. The method may compare the predicted upgoing pressure component to the received seismic data that corresponds to the received summation. The method may update the predicted upgoing pressure component based on the comparison. The method may use the updated upgoing pressure component in hydrocarbon exploration or production for the region of interest.

公开(公告)号：US10408954B2

公开(公告)日：2019-09-10

申请号：US15110986

申请日：2015-01-16

Applicant: WESTERNGECO L.L.C.

Inventor： Pascal Edme

IPC: G01V1/16 ,  G01V1/20

Abstract: The present application relates to a seismic sensor coupling device and method. Translational data in a first direction is measured by particle motion sensors contained in an elongated housing of a sensor device provided at an earth surface. The particle motion sensors are spaced apart along a second, different direction along a longitudinal axis of the elongated housing. Rotation data around a third direction is computed based at least in part on computing a gradient of the translational data with respect to the second direction. Coupling of the sensor to the earth and features related thereto are addressed in the present application.

公开(公告)号：US10191170B2

公开(公告)日：2019-01-29

申请号：US13748236

申请日：2013-01-23

Applicant: WESTERNGECO L.L.C.

Inventor： Everhard Muijzert ,  Kenneth E. Welker

IPC: G01V1/38 ,  G01V1/20

Abstract: A seismic acquisition system. The seismic acquisition system may include at least one unmanned water vehicle. The seismic acquisition system may also include at least one seismic streamer coupled to the at least one unmanned water vehicle, where the at least one seismic streamer has one or more seismic sensors coupled thereto for recording seismic data in a survey area. The seismic acquisition system may further include a buoyancy compensation mechanism coupled to the at least one seismic streamer, where the buoyancy compensation mechanism is configured to orient the at least one seismic streamer between a generally vertical direction and a generally horizontal direction through a water column.

公开(公告)号：US10162070B2

公开(公告)日：2018-12-25

申请号：US13666801

申请日：2012-11-01

Applicant: WESTERNGECO L.L.C.

Inventor： David Nichols ,  Everett Mobley, Jr.

IPC: G01V1/00 ,  G01V1/28

Abstract: Acquired data that corresponds at least in part to a target structure is received. One or more subsets of a first type are formed from the acquired data. The one or more subsets of the first type are converted to one or more subsets of a second, different type.

公开(公告)号：US09753164B2

公开(公告)日：2017-09-05

申请号：US14023224

申请日：2013-09-10

Applicant: WESTERNGECO L.L.C.

Inventor： Simon Barakat ,  Kambiz Iranpour ,  Daniel Golparian

IPC: G01V1/22 ,  G01V1/24

CPC classification number: G01V1/22 ,  G01V1/247

Abstract: Systems and methods for asynchronously acquiring seismic data are described, one system comprising one or more seismic sources, a plurality of sensor modules each comprising a seismic sensor, an A/D converter for generating digitized seismic data, a digital signal processor (DSP), and a sensor module clock; a seismic data recording station; and a seismic data transmission sub-system comprising a high precision clock, the sub-system allowing transmission of at least some of the digitized seismic data to the recording station, wherein each sensor module is configured to periodically receive from the sub-system an amount of the drift of its clock relative to the high precision clock. This abstract is provided to comply with rules requiring an abstract to ascertain the subject matter of the disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

公开(公告)号：US09696446B2

公开(公告)日：2017-07-04

申请号：US14040507

申请日：2013-09-27

Applicant: WESTERNGECO L.L.C.

Inventor： Martin Howlid ,  Rohitashva Singh

IPC: G01V1/38

CPC classification number: G01V1/3826 ,  G01V1/3817 ,  G01V1/3835

Abstract: A seismic survey system having a source array (11) coupled to a deflector device (15) that controls the position of the source array. A positioning system unit (16) is mounted on the source array to provide a signal to a controller, informing the controller of the current position of the source array so that the controller can control the position of the deflector device (15) and the coupled source array. A seismic source (14) on the source array may be triggered when the source array is at a desired location as measured by the positioning system unit. The deflector device (15) comprises one or more wings (18) in a generally vertical or, alternatively, in a generally horizontal arrangement disposed adjacent to a central body (19). The streamlined central body has connection points that allow the deflector device (15) to be connected to a tow cable (13) from the tow vessel (12) and to the source array (11).

公开(公告)号：US09694885B2

公开(公告)日：2017-07-04

申请号：US15101434

申请日：2014-12-04

Applicant: WESTERNGECO L.L.C.

Inventor： Leendert Combee

IPC: B63B35/00 ,  B63B49/00 ,  B63B21/66 ,  G05D1/02 ,  G01V1/38 ,  B63G8/00 ,  B63G8/20 ,  B63G8/42 ,  B63G8/26 ,  B63G8/16 ,  B63G8/18 ,  B63H25/46 ,  B63H25/42 ,  B63H25/52 ,  B63H25/04 ,  B63H25/06 ,  G01C21/20

CPC classification number: B63G8/20 ,  B63B35/00 ,  B63B49/00 ,  B63B2035/007 ,  B63B2035/008 ,  B63G8/001 ,  B63G8/16 ,  B63G8/18 ,  B63G8/26 ,  B63G8/42 ,  B63G2008/004 ,  B63G2008/005 ,  B63H25/04 ,  B63H25/06 ,  B63H25/42 ,  B63H25/46 ,  B63H25/52 ,  G01C21/203 ,  G01V1/3817 ,  G01V1/3835 ,  G01V1/3843 ,  G05D1/0206 ,  Y02T70/747

Abstract: An unmanned water vessel can include a body defining an internal volume and having a shape adapted to travel through water, with a front and a back; at least one directional device that is exposed to the flow of water past the vehicle when the vehicle travels in a forward direction, the directional device having a first position that provides an angle of attack through the water flow and a second position that provides a second angle of attack through the water flow; and a control system that provides commands to the at least one directional device in view of a starting point, an end point, and at least information about water flow expected to be encountered by the water vessel during travel.

公开(公告)号：US09651691B2

公开(公告)日：2017-05-16

申请号：US14390377

申请日：2013-04-02

Applicant: WESTERNGECO L.L.C.

Inventor： Pascal Edme ,  David Fraser Halliday ,  Everhard Johan Muijzert ,  Julian Edward Kragh

IPC: G01V1/00 ,  G01V1/24 ,  G01V1/32

CPC classification number: G01V1/003 ,  G01V1/24 ,  G01V1/32

Abstract: Methods and apparatuses for land seismic survey are provided. The methods and apparatuses utilize spatial derivatives of a seismic wavefield to interpolate, regularize or extrapolate seismic data. The methods and apparatuses may considerably reduce land seismic field efforts and/or compensate data gaps.

公开(公告)号：US09612349B2

公开(公告)日：2017-04-04

申请号：US14533384

申请日：2014-11-05

Applicant: WESTERNGECO L.L.C.

Inventor： Ola Pramm Larsen ,  Emmanuel Coste ,  Michel Wolfstirn

IPC: G01V1/133 ,  G01V1/137

CPC classification number: G01V1/137

Abstract: Various implementations described herein are directed to a method of performing a seismic survey operation. The method may include receiving a target acoustic output for a seismic survey. The method may include selecting an operating chamber liner for an airgun to be used in a seismic survey that corresponds to the target acoustic output. The method may also include performing a seismic survey using the airgun having the selected operating chamber liner.