公开(公告)号：US20170068009A1

公开(公告)日：2017-03-09

申请号：US14846693

申请日：2015-09-04

Applicant: WESTERNGECO L.L.C.

Inventor： Clement Kostov ,  Jing Wu ,  Debra M. Dishberger

IPC: G01V1/36

CPC classification number: G01V1/364 ,  G01V1/38 ,  G01V2210/324 ,  G01V2210/56

Abstract: One embodiment of the present disclosure includes a method for processing seismic data comprising the steps of receiving data representing seismic energy gathered from a formation by a plurality of seismic receivers, wherein the data include primary and multiple data. A copy of the received data is created and compensated to reduce amplitude attenuation effects due to transmission and absorption losses. A multiple prediction algorithm is applied to the received and compensated data to obtain a multiple data prediction. The multiple data prediction is subtracted from the received data to obtain primary data. The primary data is processed to reduce attenuation effects in the received data.

Abstract translation: 本公开的一个实施例包括用于处理地震数据的方法，包括以下步骤：接收表示由多个地震接收器从地层收集的地震能量的数据，其中所述数据包括主要和多个数据。 创建并补偿接收数据的副本，以减少由于传输和吸收损耗引起的振幅衰减效应。 将多重预测算法应用于接收和补偿的数据以获得多重数据预测。 从接收到的数据中减去多个数据预测以获得主数据。 处理主要数据以减少接收数据中的衰减效应。

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：US20150338538A1

公开(公告)日：2015-11-26

申请号：US14283839

申请日：2014-05-21

Applicant: WESTERNGECO L.L.C.

Inventor： Kuang-Hung Liu ,  Clement Kostov

IPC: G01V1/36 ,  G01V1/28

CPC classification number: G01V1/364 ,  G01V1/282

Abstract: Systems and methods for seismic processing are provided. For example, the method may include modeling seismic data as a combination of a modeling matrix and a parameter vector, and determining a plurality of solution spaces of filter models for the parameter vector. The method may also include calculating data residual terms for the filter models, wherein the data residual terms are related to a difference between the seismic data and a combination of the modeling matrix and the parameter vector determined using the filter models. The method may further include selecting a solution filter model for the parameter vector from among the filter models based on a combination of the data residual terms and complexities of the filter models, and performing a seismic processing operation using the solution filter model and the seismic data.

Abstract translation: 提供了地震处理的系统和方法。 例如，该方法可以包括将地震数据建模为建模矩阵和参数向量的组合，以及确定参数矢量的滤波器模型的多个解空间。 该方法还可以包括计算滤波器模型的数据残差项，其中数据残差项与地震数据与使用滤波器模型确定的建模矩阵和参数矢量的组合之间的差异相关。 该方法还可以包括：基于滤波器模型的数据残差项和复杂度的组合，从滤波器模型中选择用于参数矢量的解滤波器模型，以及使用解决方案滤波器模型和地震数据执行地震处理操作 。

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：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.