-
1.发明授权Method of imaging of seismic data involving a virtual source, methods of producing a hydrocarbon fluid, and a computer readable medium 有权涉及虚拟源的地震数据成像方法，生产碳氢化合物流体的方法和计算机可读介质公开(公告)号：US08275551B2
公开(公告)日：2012-09-25
申请号：US12515650
申请日：2007-11-16
CPC分类号： G01V1/36 , G01V2210/56
摘要： Method of imaging seismic data recorded using a set of seismic receivers positioned to receive seismic responses from a subsurface formation upon activating a seismic source. The seismic responses are direction-sensitive responses. A virtual signal received by receiver k from the virtual source at the position of receiver m is determined by processing involving cross correlating at least part of the responses of a receiver m with at least part of the responses of a seismic receiver k. Part of direction-sensitive responses or part of the virtual signal that contains a component of the wave field at receiver m traveling in a first direction and part of the direction-sensitive responses or part of the virtual signal that contains a component of the wave field at the receiver k traveling in a second direction may be removed.
摘要翻译： 使用一组地震接收器记录的地震数据成像方法，所述地震接收器定位成在激活地震源时接收地下地层的地震响应。 地震反应是方向敏感的反应。 由接收机k从接收机m的位置处的虚拟源接收的虚拟信号由涉及将接收机m的至少一部分响应与地震接收机k的响应的至少一部分交叉相关的处理来确定。 方向敏感应答的一部分或虚拟信号的一部分，其包含在接收机m处沿着第一方向行进的波场的分量，以及部分方向敏感响应或包含波场分量的虚拟信号的一部分 在可以移除在第二方向上行进的接收器k处。
-
2.发明授权公开(公告)号：US08463547B2
公开(公告)日：2013-06-11
申请号：US12812076
申请日：2009-01-09
IPC分类号： G01V1/40
CPC分类号： G01V1/364 , G01V2210/125
摘要： A method for imaging a subsurface formation using at least two seismic sources and receivers includes: a) creating a wave field in the formation, b) obtaining a set of responses for each receiver and performing wave field separation on them, c) obtaining a virtual source signal for at least a first receiver k by cross-correlating at least part of the response of a second receiver m with at least part of the response of the first receiver k and summing the cross-correlated responses from the sources, making receiver k a virtual source, d) for each virtual source, estimating an amplitude radiation pattern by performing a transform of the response data, e) deconvolving at least one virtual source signal with at least part of the estimated radiation pattern for that receiver to produce an amplitude-corrected virtual source signal, and f) using that signal to create an image of the subsurface formation.
摘要翻译： 一种使用至少两个地震源和接收机对地下地层进行成像的方法包括：a）在地层中产生一个波场，b）获得一组每个接收机的响应并对它们执行波场分离，c）获得一个虚拟的 通过使第二接收机m的响应的至少一部分与第一接收机k的响应的至少一部分互相关并将来自源的交叉相关响应相加，从而使至少第一接收机k的源信号，使接收机ka 虚拟源，d）对于每个虚拟源，通过执行响应数据的变换来估计幅度辐射图，e）用至少一部分所估计的辐射模式对该至少一个虚拟源信号进行解卷积， 校正的虚拟源信号，以及f）使用该信号来创建地下地层的图像。
-
3.发明申请公开(公告)号：US20110130967A1
公开(公告)日：2011-06-02
申请号：US12812076
申请日：2009-01-09
IPC分类号： G06F19/00
CPC分类号： G01V1/364 , G01V2210/125
摘要： A method for imaging a subsurface formation using at least two seismic sources and receivers comprises: a) creating a wave field in the formation, b) obtaining a set of responses for each receiver and performing wave field separation on them, c) obtaining a virtual source signal for at least a first receiver k by cross-correlating at least part of the response of a second receiver m with at least part of the response of the first receiver k and summing the cross-correlated responses from the sources, making receiver k a virtual source, d) for each virtual source, estimating an amplitude radiation pattern by performing a transform of the response data, e) deconvolving at least one virtual source signal with at least part of the estimated radiation pattern for that receiver to produce an amplitude-corrected virtual source signal, and f) using that signal to create an image of the subsurface formation.
摘要翻译： 一种使用至少两个地震源和接收机对地下地层进行成像的方法包括：a）在地层中产生一个波场，b）获得一组每个接收机的响应并对它们进行波场分离，c）获得一个虚拟的 通过使第二接收机m的响应的至少一部分与第一接收机k的响应的至少一部分互相关并将来自源的交叉相关响应相加，从而使至少第一接收机k的源信号，使接收机ka 虚拟源，d）对于每个虚拟源，通过执行响应数据的变换来估计幅度辐射图，e）用至少一部分所估计的辐射模式对该至少一个虚拟源信号进行解卷积， 校正的虚拟源信号，以及f）使用该信号来创建地下地层的图像。
-
公开(公告)号：US08635907B2
公开(公告)日：2014-01-28
申请号：US12744957
申请日：2008-11-26
CPC分类号： E21B49/087 , E21B43/00 , E21B47/00 , E21B47/101 , G01N15/08 , G01N29/07 , G01N29/11 , G01N2015/084
摘要： A method for monitoring fluid flow through a downhole device, comprises a) providing an acoustic tube wave in fluid in the device; b) measuring the acoustic tube wave after it has passed through the fluid in the device; and c) assessing the permeability of the device by measuring the attenuation of the acoustic signal. Changes in velocity of the acoustic signal may also be measured. The device may be a permeable downhole device such as a sand screen the measurements in step b) are made using a plurality of sensors deployed in the hole. The method may further including the step of cross-correlating a signal received at a first receiver with signals received at additional sensors so as to obtain an effective response as if the signal had been emitted from a source at the position of said first receiver.
摘要翻译： 一种用于监测通过井下装置的流体流动的方法，包括：a）在所述装置中提供流体中的声管波; 声管在其通过装置中的流体之后测量; 以及c）通过测量声信号的衰减来评估该装置的磁导率。 还可以测量声信号的速度变化。 该装置可以是可渗透的井下装置，例如砂筛，步骤b）中的测量使用部署在孔中的多个传感器来制造。 该方法还可以包括将在第一接收机处接收的信号与在附加传感器处接收的信号互相关的步骤，以便获得有效的响应，就好像信号已经在所述第一接收机的位置处的源发射。
-
公开(公告)号：US20110030467A1
公开(公告)日：2011-02-10
申请号：US12744957
申请日：2008-11-26
IPC分类号： E21B47/10
CPC分类号： E21B49/087 , E21B43/00 , E21B47/00 , E21B47/101 , G01N15/08 , G01N29/07 , G01N29/11 , G01N2015/084
摘要： A method for monitoring fluid flow through a downhole device, comprises a) providing an acoustic tube wave in fluid in the device; b) measuring the acoustic tube wave after it has passed through the fluid in the device; and c) assessing the permeability of the device by measuring the attenuation of the acoustic signal. Changes in velocity of the acoustic signal may also be measured. The device may be a permeable downhole device such as a sand screen the measurements in step b) are made using a plurality of sensors deployed in the hole. The method may further including the step of cross-correlating a signal received at a first receiver with signals received at additional sensors so as to obtain an effective response as if the signal had been emitted from a source at the position of said first receiver.
摘要翻译： 一种用于监测通过井下装置的流体流动的方法，包括：a）在所述装置中提供流体中的声管波; 声管在其通过装置中的流体之后测量; 以及c）通过测量声信号的衰减来评估该装置的磁导率。 还可以测量声信号的速度变化。 该装置可以是可渗透的井下装置，例如砂筛，步骤b）中的测量使用部署在孔中的多个传感器来制造。 该方法还可以包括将在第一接收机处接收的信号与在附加传感器处接收的信号互相关的步骤，以便获得有效的响应，就好像信号已经在所述第一接收机的位置处的源发射。
-
公开(公告)号：US07706211B2
公开(公告)日：2010-04-27
申请号：US11671310
申请日：2007-02-05
IPC分类号： G01V1/00
CPC分类号： G01V1/303
摘要： A seismic velocity profile in a region of interest in a subsurface formation is determined using at least the following steps. (a) Activating a seismic source at a location n, thereby exciting a wave in the subsurface formation. (b) Recording a wave signal trace unm(t) against time t, at a seismic receiver m. (c) Recording a wave signal trace unk(t) against time t at a seismic receiver k. (d) Cross correlating the wave signal traces unm(t) and unk(t) to obtain uconvnmnk(t). (e) Repeating these steps, for different locations n; (f) Summing uconvnmnk(t) over all locations n, to obtain a signal trace uvsmk(t) which corresponds to the signal received by the seismic receiver k from the virtual source at the position of seismic receiver m; (g) Deriving the seismic velocity based on the time of first arrival of the wave in uvsmk(t) and the predetermined distance between the seismic receiver m and the seismic receiver k.
摘要翻译： 使用至少以下步骤确定地下地层中感兴趣区域中的地震速度分布。 （a）在位置n处激活地震源，从而激发地下地层中的波。 （b）在地震接收机m处对时间t记录波信号迹线unm（t）。 （c）在地震接收机k处对时间t记录波信号迹线unk（t）。 （d）将波信号迹线unm（t）和unk（t）相互相关以获得uconvnmnk（t）。 （e）对不同地点重复这些步骤; （f）在所有位置n上求和uconvnmnk（t），以获得对应于由地震接收机k从地震接收机m的位置处的虚拟源接收的信号的信号迹线uvsmk（t）; （g）基于波在uvsmk（t）中的首次到达时间和地震接收机m与地震接收机k之间的预定距离得出地震速度。
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.023 秒)
