公开(公告)号：US20130121108A1

公开(公告)日：2013-05-16

申请号：US13736574

申请日：2013-01-08

Applicant: WESTERNGECO L.L.C.

Inventor： ROBBERT J. DE KOK ,  NICOLAS GOUJON ,  LEENDERT COMBEE ,  ASLAUG STROEMMEN MELBOE

IPC: G01V1/38

CPC classification number: G01V1/38 ,  G01V1/16 ,  G01V1/184 ,  G01V1/36

Abstract: Apparatus and methods for acquiring seismic data using a seabed seismic data cable positioned on a seabed are described, including correcting for the effect of one or more sensor non-linear motions, which improves accuracy of seismic data. One or multiple non-linear movements of the sensor may be corrected for. It is emphasized that this abstract is provided to comply with the rules requiring an abstract, which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.

Abstract translation: 描述了使用位于海床上的海底地震数据电缆采集地震数据的装置和方法，包括校正一个或多个传感器非线性运动的影响，这提高了地震数据的精度。 可以校正传感器的一个或多个非线性移动。 要强调的是，该摘要被提供以符合要求摘要的规则，这将允许搜索者或其他读者快速确定技术公开的主题。 提交它的理解是，它不会用于解释或限制权利要求的范围或含义。

公开(公告)号：US20130116928A1

公开(公告)日：2013-05-09

申请号：US13731564

申请日：2012-12-31

Applicant: WESTERNGECO L.L.C.

Inventor： RAN BACHRACH ,  KONSTANTIN S. OSYPOV ,  COLIN MICHAEL SAYERS

IPC: G01V1/30

CPC classification number: G01V1/30 ,  G01V1/303 ,  G01V1/50 ,  Y10T70/409

Abstract: A method and apparatus for estimating velocity in a subsurface region. Seismic data for a subsurface region may be received. One or more attributes for the seismic data may be calculated. A posterior distribution may be generated. The posterior distribution may represent one or more probabilities of one or more velocities for the attributes. A velocity with uncertainty may be determined for the subsurface region based on the posterior distribution. A pore pressure with uncertainty may be determined based on the velocity with uncertainty.

Abstract translation: 一种用于估计地下区域速度的方法和装置。 可以接收地下区域的地震数据。 可以计算地震数据的一个或多个属性。 可以产生后验分布。 后验分布可以表示属性的一个或多个速度的一个或多个概率。 可以基于后验分布确定地下区域的具有不确定性的速度。 具有不确定性的孔隙压力可以基于具有不确定性的速度来确定。

公开(公告)号：US20040230389A1

公开(公告)日：2004-11-18

申请号：US10820088

申请日：2004-04-07

Applicant: WesternGeco L.L.C., a Delaware Limited Liability Company

Inventor： Frank Adler ,  Everhard Muyzert

IPC: G01R013/00

CPC classification number: G01V1/30

Abstract: A method of determining at least one parameter of a waveguide (3) from wavefield data acquired from wave propagation in the waveguide comprises obtaining first and second dispersion curves (9a, 9b, 9c) in the frequency domain from the wavefield data. A frequency interval between the first dispersion curve and the second dispersion curve is found, and this is used in the determination of at least one parameter of the waveguide. The frequency separation nullf(V) between the first and second dispersion curves may be found at a particular value of the phase velocity V, and the thickness h of the waveguide can be found using: 1 null null null null f null ( V ) = c 1 2 null h null 1 - c 1 2 V 2 Here, c1 is the velocity of wave propagation in the waveguide. This may be found from the asymptotic velocity values of the dispersion curves.

公开(公告)号：US20030210609A1

公开(公告)日：2003-11-13

申请号：US10403135

申请日：2003-03-31

Applicant: WESTERNGECO L.L.C. a Delaware Limited Liability Company

Inventor： Benjamin Peter Jeffryes

IPC: G01V001/00

CPC classification number: G01V1/005

Abstract: A method of seismic surveying comprising the steps of actuating the or each vibrator in a first vibrator group at time T0, and subsequently actuating the or each vibrator in a second vibrator group at time T1 that satisfies T0

Abstract translation: 一种地震勘测方法，包括以下步骤：在时间T0激活第一振动器组中的每个振动器，以及随后在满足T0

公开(公告)号：US10551515B2

公开(公告)日：2020-02-04

申请号：US14445095

申请日：2014-07-29

Applicant: WESTERNGECO, L.L.C.

Inventor： Robert Laws ,  Claudio Bagaini ,  Ralf Ferber

IPC: G01V1/00

Abstract: A shot interval between activations of at least one frequency-controllable survey source is determined, where the shot interval is determined based on an expected frequency of an output of the at least one frequency-controllable survey source. The at least one frequency-controllable survey source is activated using the determined first shot interval.

公开(公告)号：US10520623B2

公开(公告)日：2019-12-31

申请号：US13907522

申请日：2013-05-31

Applicant: WESTERNGECO L.L.C.

Inventor： Nicolae Moldoveanu ,  Massimiliano Vassallo ,  Claudio Bagaini

IPC: G01V1/38

Abstract: Methods and systems for marine survey acquisition are disclosed. In one embodiment, a method is provided that may deploy a marine seismic spread that includes a first seismic source, a second seismic source and a streamer with a receiver. The second source may be disposed at a distance from the first seismic source in an inline direction. The distance may be selected to produce one or more pairs of shot points during a seismic survey. The shot points within a pair may be disposed within a range that is used to calculate a pressure source gradient between the shot points within the pair. The method may shoot the first seismic source and the second seismic source substantially simultaneously. The method may record seismic data associated with shooting the first seismic source and the second seismic source. The method may calculate the pressure source gradient for respective pairs of shot points.

公开(公告)号：US10509139B2

公开(公告)日：2019-12-17

申请号：US13847384

申请日：2013-03-19

Applicant: WESTERNGECO L.L.C.

Inventor： Ahmet Kemal Ozdemir ,  Bent Andreas Kjellesvig

IPC: G01V1/36 ,  G01V1/38

Abstract: A technique includes using a filter having filtering parameters based at least in part on a dispersion curve of at least one vibration mode of a streamer to filter a measurement acquired by at least one sensor of the streamer and using results of the filtering to suppress vibration noise present in the measurement.

公开(公告)号：USRE47389E1

公开(公告)日：2019-05-14

申请号：US14946052

申请日：2015-11-19

Applicant: WesternGeco, L.L.C.

Inventor： Nicolae Moldoveanu ,  Craig J. Beasley

IPC: G01V1/38

Abstract: A technique for acquiring wide azimuth seismic data using simultaneous shooting is presented in which a plurality of seismic sources are positioned to achieve a desired crossline sampling as a function of the number of passes. This is accomplished by “interleaving” sources as deployed in the spread, as positioned in multiple passes, or some combination of these things, to achieve an effective shotline interval during acquisition or an effective crossline sampling less than their crossline source separation.

公开(公告)号：US10274621B2

公开(公告)日：2019-04-30

申请号：US14353725

申请日：2012-11-26

Applicant: WESTERNGECO L.L.C.

Inventor： David Fraser Halliday ,  Julian Edward Kragh ,  Pascal Edme ,  David Neser ,  Martin Howlid

IPC: G01V1/02 ,  G01V1/18 ,  G01V1/00 ,  G01V1/20 ,  G01V1/145

Abstract: Seismic surveying techniques are described in which seismic receivers in a seismic array are used as seismic sources. These receiver-sources may be used to determine the near-surface structures of the Earth, geometric properties of the survey array, receiver locations and operations of the survey array. The receiver-sources may be driven by drive sequences to produce amplified receiver-source signals, plane waves, surface waves converging towards a point inside the seismic array, surface waves sweeping through the seismic array and/or the like. The receiver-sources may comprise geophones, hydrophones, accelerometers and/or the like. A driver may be used to drive the receiver-sources and the driver may be controlled by a processor. By encoding drive sequences, seismic data generated by the receiver-sources may be separated from seismic data generated by another seismic source in the seismic array. Similarly, seismic data can be separated by controlling the frequency of seismic signals produced by the receiver-sources.

公开(公告)号：US10241219B2

公开(公告)日：2019-03-26

申请号：US14340613

申请日：2014-07-25

Applicant: WESTERNGECO L.L.C.

Inventor： Seth Friedly ,  Einar Holst ,  Kambiz Iranpour

IPC: G01V1/00 ,  G01V1/20 ,  G01V1/16 ,  G01V13/00

Abstract: A sensor device includes an elongated housing containing particle motion sensors spaced apart along a longitudinal axis of the elongated housing, where the elongated housing has a length that is greater than a width of the elongated housing. A second portion includes communication circuitry to communicate over a communication medium, the second portion coupled to the elongated housing and having a width that is greater than the width of the elongated housing.