公开(公告)号：US10551517B2

公开(公告)日：2020-02-04

申请号：US15509076

申请日：2015-09-04

Applicant: WesternGeco L.L.C.

Inventor： James E. Rickett ,  Clement Kostov ,  Anna Marjatta Makinen

IPC: G01V1/28 ,  G01V1/30 ,  G01V1/36

Abstract: Synthetic survey data is generated using a two-way or one-way wave propagator based on a current model of a target structure. The current model is modified to reduce a difference between the synthetic survey data and observed survey data, while maintaining unchanged a velocity component of the current model, where the modifying of the current model produces a modified model. The modified model is used to reduce an adverse effect of multiples in the target structure, or to promote a favorable effect of multiples in the target structure.

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：US20170248714A1

公开(公告)日：2017-08-31

申请号：US15509076

申请日：2015-09-04

Applicant: WesternGeco L.L.C.

Inventor： James E. Rickett ,  Clement Kostov ,  Anna Marjatta Makinen

IPC: G01V1/28 ,  G01V1/36 ,  G01V1/30

Abstract: Synthetic survey data is generated using a two-way or one-way wave propagator based on a current model of a target structure. The current model is modified to reduce a difference between the synthetic survey data and observed survey data, while maintaining unchanged a velocity component of the current model, where the modifying of the current model produces a modified model. The modified model is used to reduce an adverse effect of multiples in the target structure, or to promote a favorable effect of multiples in the target structure.

公开(公告)号：US20150046093A1

公开(公告)日：2015-02-12

申请号：US14381888

申请日：2013-03-26

Applicant: WESTERNGECO L.L.C.

Inventor： Ivan Pires De Vasconcelos ,  James E. Rickett

IPC: G01V1/32 ,  G01V1/34

CPC classification number: G01V1/325 ,  G01V1/307 ,  G01V1/345

Abstract: Processing measurements to create “reflectivity” data at a datum for a target using Joint Point-Spread Functions. The “reflectivity” data can be an image or an extended image. The methods can create single reflectivity data from measurements from multiple experiments, or multiple processed datasets via different processing routes from measurements from a single experiment, or measurements from a single experiment with multiple simultaneous sources.

Abstract translation: 处理测量以使用联合点扩展函数在目标的基准处创建“反射率”数据。 “反射率”数据可以是图像或扩展图像。 这些方法可以通过来自多个实验的测量或来自单个实验的测量的不同处理路线的多个处理数据集或来自具有多个同时源的单个实验的测量来创建单个反射率数据。