公开(公告)号：US20130182536A1

公开(公告)日：2013-07-18

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

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：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。

公开(公告)号：US20130261980A1

公开(公告)日：2013-10-03

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: G01V1/38

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.

Abstract translation: 提供了调查操作的方法和系统。 在一些实施例中，接收由至少一个测量接收器测量的交叉测量数据。 至少部分地基于交叉线测量数据的特征，选择多个候选选项中的选项，其中所选择的选项用于与目标结构的调查有关的动作。

公开(公告)号：US20140269185A1

公开(公告)日：2014-09-18

申请号：US14205133

申请日：2014-03-11

Applicant: WESTERNGECO L.L.C.

Inventor： RALF G. FERBER ,  ALI ÖZBEK ,  MASSIMILIANO VASSALLO ,  DAVID NIGEL TODHUNTER

IPC: G01V1/30

CPC classification number: G01V1/308 ,  G01V1/003 ,  G01V1/325 ,  G01V2210/40 ,  G01V2210/612

Abstract: Described herein are implementations of various technologies for a method. The method may receive a baseline survey dataset for a region of interest. The method may obtain a transformed dataset from the baseline survey dataset using a transform. The method may determine sparsity characteristics from the transformed dataset. The method may determine survey parameters using the sparsity characteristics. The survey parameters may be for a monitor survey for the region of interest.

Abstract translation: 这里描述了用于方法的各种技术的实现。 该方法可以接收感兴趣区域的基线调查数据集。 该方法可以使用变换从基线调查数据集获得转换的数据集。 该方法可以确定来自变换数据集的稀疏特性。 该方法可以使用稀疏特性来确定测量参数。 调查参数可能是针对感兴趣区域的监测调查。

公开(公告)号：US20140200854A1

公开(公告)日：2014-07-17

申请号：US14156373

申请日：2014-01-15

Applicant: WESTERNGECO L.L.C.

Inventor： KURT EGGENBERGER ,  PHILIP A. F. CHRISTIE ,  MASSIMILIANO VASSALLO ,  DIRK-JAN VAN MANEN

IPC: G01V1/00

CPC classification number: G01V1/003

Abstract: Modular workflows for determining acquisition geometry and efficiency using 3D deghosting and wavefield reconstruction methods enabled by multicomponent seismic information are disclosed, which may be performed as methods. In some embodiments, such methods may be performed on computing systems.

Abstract translation: 公开了通过多组分地震信息实现的3D去虚反射和波场重建方法来确定采集几何和效率的模块化工作流程，其可以作为方法来执行。 在一些实施例中，可以在计算系统上执行这样的方法。

公开(公告)号：US20140200820A1

公开(公告)日：2014-07-17

申请号：US14152795

申请日：2014-01-10

Applicant: WESTERNGECO L.L.C.

Inventor： NIZARE EL YADARI ,  YOUSIF IZZELDIN KAMIL ,  MASSIMILIANO VASSALLO

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V2210/324 ,  G01V2210/34

Abstract: Described herein are architectures, platforms, computing systems, and methods for mitigating noise in wavefield extrapolation and imaging. In one aspect, a method of wavefield extrapolation is provided that includes receiving data representing at least one measurement of pressure wavefield or particle motion wavefield; modeling the received data as a sum of signal and noise; providing a noise model to components of the received data; and weighting the measured components of the received data to reduce the impact of noise of results of the wavefield extrapolation.

Abstract translation: 这里描述了用于减少波场外插和成像中的噪声的架构，平台，计算系统和方法。 一方面，提供了一种波场外推方法，包括接收表示压力波场或粒子运动波场的至少一个测量的数据; 将接收的数据建模为信号和噪声的总和; 向所接收数据的组件提供噪声模型; 并对接收到的数据的测量分量进行加权，以减少波场外推结果的噪声的影响。

公开(公告)号：US20140036626A1

公开(公告)日：2014-02-06

申请号：US14043568

申请日：2013-10-01

Applicant: WESTERNGECO L.L.C.

Inventor： MASSIMILIANO VASSALLO ,  CLEMENT KOSTOV ,  ALFONSO GONZALEZ

IPC: 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.

Abstract translation: 一种技术包括基于压力数据和由至少一个地震传感器同时测量的粒子运动的指示来确定与地震采集相关联的慢度矢量的至少一个属性。

公开(公告)号：US20140029378A1

公开(公告)日：2014-01-30

申请号：US14037997

申请日：2013-09-26

Applicant: WESTERNGECO L.L.C.

Inventor： DIRK-JAN VAN MANEN ,  MASSIMILIANO VASSALLO ,  ALI ÖZBEK

IPC: G01V1/38

Abstract: A technique includes receiving seismic data acquired in a seismic survey in the vicinity of a reflecting interface. The survey has an associated undersampled direction. The technique includes providing second data indicative of discrete samples of incident and reflected components of a continuous seismic wavefield along the undersampled direction and relating the discrete samples to a linear combination of the continuous incident and reflected seismic wavefields using at least one linear filter. Based on the relationship, an unaliased representation of the linear combination of the continuous incident and reflected seismic wavefields is constructed.

Abstract translation: 一种技术包括接收在反射界面附近的地震勘测中获取的地震数据。 调查有相关的欠采样方向。 该技术包括提供指示沿着欠采样方向的连续地震波场的入射和反射分量的离散样本的第二数据，并使用至少一个线性滤波器将离散样本与连续入射和反射地震波场的线性组合相关联。 基于该关系，构建了连续入射和反射地震波场的线性组合的未混叠表示。