公开(公告)号：US09971053B2

公开(公告)日：2018-05-15

申请号：US13855610

申请日：2013-04-02

Applicant: WESTERNGECO L.L.C.

Inventor： Susanne Rentsch-Smith ,  Philippe Caprioli ,  Massimiliano Vassallo ,  Dirk-Jan Van Manen

IPC: G01V1/36 ,  G01V1/38 ,  G01V1/30

CPC classification number: G01V1/3808 ,  G01V1/307 ,  G01V1/36 ,  G01V1/3817 ,  G01V2200/14 ,  G01V2210/72

Abstract: 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.

公开(公告)号：US09632194B2

公开(公告)日：2017-04-25

申请号：US14043568

申请日：2013-10-01

Applicant: WESTERNGECO L.L.C.

Inventor： Massimiliano Vassallo ,  Clement Kostov ,  Alfonso Gonzalez

IPC: G01V1/38 ,  G01V1/30

CPC classification number: G01V1/303 ,  G01V1/38 ,  G01V1/3808 ,  G01V2210/61 ,  G01V2210/6222

Abstract: A technique includes determining at least one attribute of a slowness vector associated with a seismic gather based on pressure data and an indication of particle motion that is measured by at least one seismic sensor while in tow.

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：US20160139283A1

公开(公告)日：2016-05-19

申请号：US14900441

申请日：2014-06-19

Applicant: WESTERNGECO L.L.C.

Inventor： Yousif Izzeldin Kamil ,  Nizare El Yadari ,  Massimiliano Vassallo

IPC: G01V1/36 ,  G01V1/28

CPC classification number: G01V1/364 ,  G01V1/282 ,  G01V1/3808 ,  G01V2210/56

Abstract: A method can include receiving measured values that include representations of constructive interference and destructive interference from an upgoing wavefield and a downgoing ghost wavefield reflected from a sea surface; and estimating at least one of the wavefields with attenuated noise.

Abstract translation: 一种方法可以包括接收包括来自上行波场和从海面反射的下行幻影波场的建构性干扰和相消干涉的表示的测量值; 以及估计具有衰减噪声的至少一个波场。

公开(公告)号：US09274239B2

公开(公告)日：2016-03-01

申请号：US13739877

申请日：2013-01-11

Applicant: WESTERNGECO L.L.C.

Inventor： Massimiliano Vassallo ,  Dirk-Jan Van Manen ,  Susanne Rentsch-Smith ,  Philip A. F. Christie

IPC: G01V1/38 ,  G01V1/36

CPC classification number: G01V1/38 ,  G01V1/364 ,  G01V2210/20 ,  G01V2210/56

Abstract: A technique includes receiving sensor acquired data, which includes pressure data representative of at least one pressure measurement of a wavefield and particle motion data representative of at least one particle motion measurement of the wavefield. The technique includes filtering the pressure data and the particle motion data with a plurality of directional filters to provide a plurality of filtered datasets. The filtered datasets are associated with different directional ranges. The technique includes estimating an angle of incidence for at least one of the directional ranges based at least in part on at least one of the filtered datasets; and processing the acquired data to determine at least one of an upgoing component of the wavefield and a downgoing component of the wavefield based at least in part on the at least one estimated angle of incidence.

Abstract translation: 一种技术包括接收传感器获取的数据，其包括代表波场的至少一个压力测量的压力数据和表示波场的至少一个粒子运动测量的粒子运动数据。 该技术包括用多个方向滤波器对压力数据和粒子运动数据进行滤波，以提供多个经滤波的数据集。 过滤的数据集与不同的方向范围相关联。 该技术包括至少部分地基于经过滤数据集中的至少一个来估计至少一个方向范围的入射角; 以及至少部分地基于所述至少一个估计的入射角来处理所获取的数据以确定所述波场的上行分量和所述波场的向下分量中的至少一个。

公开(公告)号：US20150134259A1

公开(公告)日：2015-05-14

申请号：US14603290

申请日：2015-01-22

Applicant: WesternGeco L.L.C.

Inventor： Massimiliano Vassallo ,  Ali Ozbek ,  Dirk-Jan van Manen ,  Anthony D. Curtis ,  Kurt Eggenberger

IPC: G01V1/30

CPC classification number: G01V99/005 ,  G01V1/00 ,  G01V1/003 ,  G01V1/02 ,  G01V1/28 ,  G01V1/307 ,  G01V1/32 ,  G01V1/364

Abstract: A technique includes processing seismic data indicative of samples of at least one measured seismic signal in a processor-based machine to determine basis functions that represent a constructed seismic signal based at least in part on a matching pursuit-based technique. The technique further includes basing the determination of the basis functions at least in part on a predicted energy distribution of the constructed seismic signal.

Abstract translation: 一种技术包括在基于处理器的机器中处理指示至少一个测量的地震信号的采样的地震数据，以至少部分地基于匹配追踪技术来确定表示构造的地震信号的基础函数。 该技术还包括至少部分地基于构造的地震信号的预测能量分布来确定基函数的确定。