公开(公告)号：US10429530B2

公开(公告)日：2019-10-01

申请号：US14787967

申请日：2014-04-29

Applicant: WESTERNGECO L.L.C.

Inventor： James E. Rickett ,  Dirk-Jan van Manen

IPC: G01V1/36 ,  G01V1/28 ,  G01V1/32

Abstract: Methods and apparatuses for processing marine seismic data with a process of combined deghosting and sparse τ-p transformation. The process is formulated as an optimization problem. The optimization problem has an objective function that is a weighted sum of two norms: one norm is an Lp norm of the differences between the modeled data and acquired survey wherein the modeled data are derived from a model and a set of adaptive filters; the other norm is an Lq norm of the model; and the optimization variables and solutions are the coefficients of the model and coefficients of the adaptive filters.

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。

公开(公告)号：US08750073B2

公开(公告)日：2014-06-10

申请号：US13710149

申请日：2012-12-10

Applicant: Westerngeco L.L.C.

Inventor： Johan O. A. Robertsson ,  Dirk-Jan van Manen ,  David Fraser Halliday ,  Robert Montgomery Laws

IPC: G01V1/00

CPC classification number: G01V1/308 ,  G01V1/38 ,  G01V1/3808 ,  G01V1/3817 ,  G01V1/3843 ,  G01V1/3861

Abstract: The technologies described herein include systems and methods for performing a first seismic survey and performing a second seismic survey after a predetermined amount of time has lapsed between the first seismic survey and the second seismic survey. The shot times and the shot positions of the second seismic survey may be substantially the same as the shot times and the shot positions of the first seismic survey. After performing the seismic surveys, seismic data generated by the first seismic survey may be processed to generate a first image, and seismic data generated by the second seismic survey may be processed to generate a second image. After generating the first and second images, a difference between the first image and the second image may be computed to generate a time lapse difference image.

Abstract translation: 本文描述的技术包括用于执行第一次地震测量并在第一次地震测量和第二次地震勘测之后经过预定时间的时间之后执行第二次地震勘测的系统和方法。 第二次地震测量的拍摄时间和拍摄位置可以与第一次地震勘测的拍摄时间和拍摄位置基本相同。 在执行地震勘测之后，可以处理由第一地震勘测产生的地震数据以产生第一图像，并且可以处理由第二地震勘测产生的地震数据以产生第二图像。 在产生第一和第二图像之后，可以计算第一图像和第二图像之间的差异以产生时间差分图像。