公开(公告)号：US20150192687A1

公开(公告)日：2015-07-09

申请号：US14663451

申请日：2015-03-19

Applicant: WesternGeco L.L.C.

Inventor： Nicolas Goujon

IPC: G01V1/36 ,  G01V1/18

CPC classification number: G01V1/364 ,  G01V1/186 ,  G01V1/38 ,  G01V2210/56

Abstract: Measurement data is received from first and second seismic sensors, where the first and second seismic sensors are oriented in opposite directions. Each of the first and second seismic sensors has a sensing element responsive to pressure and particle motion. The signals can be combined to remove the particle motion component of the measurement data and obtain pressure-only data. Alternatively, the signals can be combined to deghost the received measurement data.

Abstract translation: 从第一和第二地震传感器接收测量数据，其中第一和第二地震传感器被定向在相反的方向。 第一和第二地震传感器中的每一个具有响应于压力和粒子运动的感测元件。 可以组合信号以去除测量数据的粒子运动分量并获得仅压力数据。 或者，可以组合信号以使所接收的测量数据衰减。

公开(公告)号：US20150177396A1

公开(公告)日：2015-06-25

申请号：US14571135

申请日：2014-12-15

Applicant: WesternGeco L.L.C.

Inventor： Claudio Bagaini ,  Ian Moore

IPC: G01V1/02

CPC classification number: G01V1/005

Abstract: A controller controls phases of signals produced by survey sources according to a frequency of the signals. The controlling includes controlling the survey sources to be in phase for frequencies less than a predetermined frequency, and randomizing phases of the signals emitted by the survey sources for frequencies greater than the predetermined frequency, wherein the randomizing includes applying a smoothing operator in a specified frequency range, and emit signals with different phases for frequencies greater than the predetermined frequency.

Abstract translation: 控制器根据信号的频率控制由测量源产生的信号的相位。 所述控制包括：将所述测量源控制为小于预定频率的频率同相;以及使所述测量源发射的信号的相位随机化，所述频率大于所述预定频率，其中所述随机化包括以特定频率应用平滑算子 并且对于大于预定频率的频率发射具有不同相位的信号。

公开(公告)号：US20150122574A1

公开(公告)日：2015-05-07

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

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.

Abstract translation: 本文描述的各种实现涉及执行地震勘测操作的方法。 该方法可以包括接收用于地震勘测的目标声输出。 该方法可以包括为对应于目标声输出的地震勘测中使用的气枪选择操作室衬垫。 该方法还可以包括使用具有所选择的操作室衬垫的气枪进行地震测量。

公开(公告)号：US20150117150A1

公开(公告)日：2015-04-30

申请号：US14520066

申请日：2014-10-21

Applicant: WesternGeco L.L.C.

Inventor： Claudio Bagaini

IPC: G01V1/04 ,  G01V1/28

CPC classification number: G01V1/04 ,  G01V1/005 ,  G01V1/28

Abstract: Various implementations described herein are directed to a method of performing a seismic survey operation. The method may include deploying two seismic sources. The method may include using the two seismic sources to perform a simultaneous in-phase precursor sweep. The method may also include using the two seismic sources to perform a simultaneous out-of-phase cascaded sweep.

Abstract translation: 本文描述的各种实现涉及执行地震勘测操作的方法。 该方法可以包括部署两个地震源。 该方法可以包括使用两个地震源来执行同时的同相前驱扫描。 该方法还可以包括使用两个地震源来执行同时的异相级联扫描。

公开(公告)号：US09010484B2

公开(公告)日：2015-04-21

申请号：US13916313

申请日：2013-06-12

Applicant: WesternGeco L.L.C.

Inventor： Emmanuel Coste ,  Claudio Bagaini ,  Robert Montgomery Laws ,  Jon-Fredrik Hopperstad

IPC: G01V1/38 ,  G01V1/04 ,  G01V1/137 ,  G01V1/00

CPC classification number: G01V1/137 ,  G01V1/3808 ,  G01V2210/127

Abstract: A seismic source array includes a first source and a second source. The first source has a first spectral output and the second source has a second spectral output different than the first spectral output. The first source has a first total volume different than a second total volume of the second source.

Abstract translation: 地震源阵列包括第一源和第二源。 第一光源具有第一光谱输出，第二光源具有不同于第一光谱输出的第二光谱输出。 第一源具有与第二源的第二总体积不同的第一总体积。

公开(公告)号：US20150092516A1

公开(公告)日：2015-04-02

申请号：US14496405

申请日：2014-09-25

Applicant: WESTERNGECO L.L.C.

Inventor： SVEIN ARNE FRIVIK ,  LEENDERT COMBEE

IPC: G01V1/38

CPC classification number: G01V1/3835

Abstract: A method for transmitting acoustic signals from pingers. The method includes transmitting acoustic signals from a first group of pingers within a seismic spread. The method includes transmitting acoustic signals from a second group of pingers within the seismic spread after a predetermined amount of time has passed, wherein the signals from the first group and the second group are emitted between two seismic shots. The first group of pingers and the second group of pingers are mutually exclusive.

Abstract translation: 一种用于从乒乓传输声信号的方法。 该方法包括从地震展开中的第一组平板传送声信号。 该方法包括：在经过预定时间的时间之后，从地震范围内的第二组平面传送声信号，其中来自第一组和第二组的信号在两个地震拍摄之间发射。 第一组平民和第二组平民是相互排斥的。

公开(公告)号：US20150055833A1

公开(公告)日：2015-02-26

申请号：US14529856

申请日：2014-10-31

Applicant: WesternGeco L.L.C.

Inventor： Maxim Protasov ,  Konstantin S. Osypov ,  David Nichols ,  Can Evren Yarman

IPC: G01V1/30

CPC classification number: G01V1/301 ,  G01V1/28 ,  G01V1/303 ,  G01V2210/671

Abstract: Computing systems and methods for improving processing of collected data are disclosed. In one embodiment, while ray-tracing through a sub-surface region, a frequency-dependent outgoing ray direction is computed from a point on an interface disposed in the sub-surface region when the ray tracing is at the interface.

Abstract translation: 公开了用于改进收集数据处理的计算系统和方法。 在一个实施例中，当光线跟踪通过子表面区域时，当光线跟踪在界面处时，从设置在子表面区域中的界面上的点计算频率相关的输出射线方向。

公开(公告)号：US20150039236A1

公开(公告)日：2015-02-05

申请号：US14445095

申请日：2014-07-29

Applicant: WESTERNGECO, L.L.C.

Inventor： Robert Laws ,  Claudio Bagaini ,  Ralf Ferber

IPC: G01V1/38 ,  G01V1/30

CPC classification number: G01V1/003

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.

Abstract translation: 确定至少一个频率可控测量源的激活之间的拍摄间隔，其中基于至少一个频率可控测量源的输出的预期频率来确定拍摄间隔。 使用确定的第一拍摄间隔激活至少一个频率可控测量源。

公开(公告)号：US20150016218A1

公开(公告)日：2015-01-15

申请号：US14457996

申请日：2014-08-12

Applicant: WESTERNGECO L.L.C.

Inventor： KENNETH WELKER ,  PETER TYLER

IPC: G01V1/38

CPC classification number: G01V1/3861 ,  G01V1/3817 ,  G01V1/3826 ,  G01V1/3835

Abstract: An inventive method provides for control of a seismic survey spread while conducting a seismic survey, the spread having a vessel, a plurality of spread control elements, a plurality of navigation nodes, and a plurality of sources and receivers. The method includes the step of collecting input data, including navigation data for the navigation nodes, operating states from sensors associated with the spread control elements, environmental data for the survey, and survey design data. The positions of the sources and receivers are estimated using the navigation data, the operating states, and the environmental data. Optimum tracks for the sources and receivers are determined using the position estimates and a portion of the input data that includes at least the survey design data. Drive commands are calculated for at least two of the spread control elements using the determined optimum tracks. The inventive method is complemented by an inventive system.

公开(公告)号：US20140355379A1

公开(公告)日：2014-12-04

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.

Abstract translation: 披露海洋勘测采集方法和系统。 在一个实施例中，提供了一种可以部署包括第一地震源，第二震源和具有接收器的拖缆的海洋地震展开的方法。 第二源可以在一个一线方向上与第一震源相距一定距离。 可以选择该距离以在地震勘测期间产生一对或多对射击点。 一对中的射击点可以设置在用于计算该对内的射击点之间的压力源梯度的范围内。 该方法可以基本上同时地射出第一震源和第二震源。 该方法可以记录与拍摄第一震源和第二震源有关的地震数据。 该方法可以计算各对拍摄点的压力源梯度。