Method of evaluating the interaction between a wavefield and a solid body
    21.
    发明授权
    Method of evaluating the interaction between a wavefield and a solid body 有权
    评估波场与实体之间相互作用的方法

    公开(公告)号:US07715985B2

    公开(公告)日:2010-05-11

    申请号:US11690492

    申请日:2007-03-23

    IPC分类号: G01V1/00 G06G7/56

    CPC分类号: G01V1/28 G01V2210/57

    摘要: Described is a finite-difference methodology for efficiently computing the response from a model subject to changes within sub-volumes with the sub-volume enclosed with an extrapolation surface within an injection boundary using Green's functions to update the injection boundary and transmitting an updated wavefield from the injection boundary back into the altered sub-volume to include higher order reflections from outside of the altered sub-space.

    摘要翻译: 描述了一种有限差分方法,用于有效地计算来自受子体积变化的模型的响应,其中子体积与注入边界内的外推表面包围,使用格林函数来更新注入边界并将更新的波场从 注入边界回到改变的子体积,以包括从改变的子空间外部的更高阶反射。

    Method of Evaluating the Interaction Between a Wavefield and a Solid Body
    23.
    发明申请
    Method of Evaluating the Interaction Between a Wavefield and a Solid Body 有权
    评估波场和实体之间相互作用的方法

    公开(公告)号:US20070233437A1

    公开(公告)日:2007-10-04

    申请号:US11690492

    申请日:2007-03-23

    IPC分类号: G06F17/10

    CPC分类号: G01V1/28 G01V2210/57

    摘要: Described is a finite-difference methodology for efficiently computing the response from a model subject to changes within sub-volumes with the sub-volume enclosed with an extrapolation surface within an injection boundary using Green's functions to update the injection boundary and transmitting an updated wavefield from the injection boundary back into the altered sub-volume to include higher order reflections from outside of the altered sub-space.

    摘要翻译: 描述了一种有限差分方法,用于有效地计算来自受子体积变化的模型的响应,其中子体积与注入边界内的外推表面包围,使用格林函数来更新注入边界并将更新的波场从 注入边界回到改变的子体积,以包括从改变的子空间外部的更高阶反射。

    Method of processing marine seismic data and a method of seismic surveying
    24.
    发明授权
    Method of processing marine seismic data and a method of seismic surveying 有权
    海洋地震资料处理方法及地震勘测方法

    公开(公告)号:US07164619B2

    公开(公告)日:2007-01-16

    申请号:US10466980

    申请日:2002-01-24

    IPC分类号: G01V1/36 G01V1/38

    CPC分类号: G01V1/286

    摘要: A method of determining seismic properties of a layer of the seabed, in particular a surface or near-surface layer (5), comprises directing seismic energy propagating in a first mode at a boundary face of the layer so as to cause partial mode conversion of the seismic energy at the boundary face. For example partial mode conversion may occur when seismic energy propagates upwards through the interface between a surface or near-surface layer (5) and the basement (6), owing to the difference in seismic properties between the surface or near-surface layer (5) and the basement (6). In the invention, the two modes of seismic energy—that is the initial mode and the mode generated by mode conversions at the interface—are received at a receiver. The difference in travel time of the two modes between the interface and the receiver is determined from the seismic data acquired by the receiver.

    摘要翻译: 确定海床,特别是表面或近表面层(5)的层的地震性质的方法包括指导在层的边界面处以第一模式传播的地震能量,以便导致部分模式转换 边界地震能量。 例如,由于表面或近表面层(5)之间的地震性质的差异,地震能量向上传播通过表面或近表面层(5)和基底(6)之间的界面,可能会发生部分模式转换 )和地下室(6)。 在本发明中,在接收机处接收地震能量的两种模式,即初始模式和由界面处的模式转换产生的模式。 根据接收机获取的地震数据,确定接口与接收机之间的两种模式的行进时间差。

    Seismic data acquisition and source-side derivatives generation and application
    27.
    发明授权
    Seismic data acquisition and source-side derivatives generation and application 有权
    地震数据采集和源端衍生产生和应用

    公开(公告)号:US08331192B2

    公开(公告)日:2012-12-11

    申请号:US13218881

    申请日:2011-08-26

    IPC分类号: G01V1/00

    摘要: 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.

    摘要翻译: 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。

    Seismic Data Acquisition and Source-Side Derivatives Generation and Application
    28.
    发明申请
    Seismic Data Acquisition and Source-Side Derivatives Generation and Application 有权
    地震数据采集和源端衍生产生与应用

    公开(公告)号:US20090097357A1

    公开(公告)日:2009-04-16

    申请号:US12340625

    申请日:2008-12-19

    IPC分类号: G01V1/28

    摘要: The technologies described herein include systems and methods for encoding/decoding seismic sources and responses, generating and using of source-side derivatives while also generating and using the conventional source response. Sources in an array may be encoded such that activation of each source in the array constitutes a single spike in a sequence orthogonal to another sequence emitted by another source. The responses to these different sources that are in close spatial proximity can be decoded and separated. Source-side derivatives may be calculated and utilized in various applications in combination with the monopole response from the source location, including source-side deghosting, spatial (horizontal and vertical) interpolation and imaging.

    摘要翻译: 本文描述的技术包括用于对地震源和响应进行编码/解码的系统和方法,产生和使用源侧衍生物,同时还产生和使用常规的源响应。 可以编码阵列中的源,使得阵列中的每个源的激活构成与另一源发射的另一序列正交的序列中的单个尖峰。 对这些处于紧密空间接近的不同源的响应可以被解码和分离。 源极衍生物可以与来自源位置的单极响应结合在一起的各种应用中被计算和利用,包括源侧反重影,空间(水平和垂直)插值和成像。

    Seismic data acquisition and source-side derivatives generation and application
    29.
    发明授权
    Seismic data acquisition and source-side derivatives generation and application 有权
    地震数据采集和源端衍生产生和应用

    公开(公告)号:US07492665B2

    公开(公告)日:2009-02-17

    申请号:US11459441

    申请日:2006-07-24

    IPC分类号: G01V1/00

    摘要: The technologies described herein include systems and methods for encoding/decoding seismic sources and responses, generating and using of source-side derivatives while also generating and using the conventional source response. Sources in an array may be encoded such that activation of each source in the array constitutes a single spike in a sequence orthogonal to another sequence emitted by another source. The responses to these different sources that are in close spatial proximity can be decoded and separated. Source-side derivatives may be calculated and utilized in various applications in combination with the monopole response from the source location, including source-side deghosting, spatial (horizontal and vertical) interpolation and imaging.

    摘要翻译: 本文描述的技术包括用于对地震源和响应进行编码/解码的系统和方法,产生和使用源侧衍生物,同时还产生和使用常规的源响应。 可以编码阵列中的源,使得阵列中的每个源的激活构成与另一源发射的另一序列正交的序列中的单个尖峰。 对这些处于紧密空间接近的不同源的响应可以被解码和分离。 源极衍生物可以与来自源位置的单极响应结合在一起的各种应用中被计算和利用,包括源侧反重影,空间(水平和垂直)插值和成像。

    CONSTRUCTION AND REMOVAL OF SCATTERED GROUND ROLL USING INTERFEROMETRIC METHODS
    30.
    发明申请
    CONSTRUCTION AND REMOVAL OF SCATTERED GROUND ROLL USING INTERFEROMETRIC METHODS 审中-公开
    使用干涉方法构造和去除散射地基滚子

    公开(公告)号:US20070104028A1

    公开(公告)日:2007-05-10

    申请号:US11458868

    申请日:2006-09-27

    IPC分类号: G01V1/00

    摘要: A data set can be corrected for the effects of interface waves by interferometrically measuring an interface wavefield between each of a plurality of planned locations within a survey area; and correcting survey data acquired in the survey area for the interface waves. The interface wavefield may be interferometrically measured by receiving a wavefield including interface waves propagating within a survey area, the survey area including a plurality of planned survey locations therein; generating interface wave data representative of the received interface wavefield; and constructing a Green's function between each of the planned survey positions from the interface wave data. Other aspects include an apparatus by which the interface wavefield may be interferometrically measured and a computer apparatus programmed to correct the seismic data using the interferometrically measured interface wave data.

    摘要翻译: 可以通过对测量区域内的多个计划位置中的每一个之间的界面波场进行干涉测量来校正接口波的影响的数据集; 并对接口波在调查区域获得的调查数据进行修正。 接口波场可以通过接收包括在测量区域内传播的界面波的波场来进行干涉测量,该测量区域包括多个计划的测量位置; 产生代表接收到的接口波场的接口波数据; 并从接口波数据构建每个计划的测量位置之间的格林函数。 其他方面包括可以对接口波场进行干涉测量的装置以及使用干涉测量的接口波数据编程来校正地震数据的计算机装置。