Seismic event correlation and Vp-Vs estimation
    31.
    发明授权
    Seismic event correlation and Vp-Vs estimation 有权
    地震事件相关和Vp-Vs估计

    公开(公告)号:US07082368B2

    公开(公告)日:2006-07-25

    申请号:US10861054

    申请日:2004-06-04

    申请人: Michael Nickel

    发明人: Michael Nickel

    IPC分类号: G01V1/28

    CPC分类号: G01V1/286

    摘要: A method of correlating seismic events associated with different types of seismic transmission modes and includes calculating a shift estimate between a first set of seismic events or attributes associated with the seismic events attributable to one type of transmission mode and a second set of seismic events or attributes associated with the seismic events attributable to a different type of transmission mode using a smoothed version of at least one of the sets of seismic events or attributes associated with the seismic events, and updating the shift estimate using a less severely smoothed or unsmoothed version of the at least one set of seismic events or attributes associated with the seismic events. A related computer system and computer program products associated with the method are also described.

    摘要翻译: 将与不同类型的地震传播模式相关联的地震事件相关联的方法,包括计算第一组地震事件之间的移动估计或与归因于一种类型的传输模式的地震事件相关联的属性以及第二组地震事件或属性 与使用平滑版本的地震事件或与地震事件相关联的属性中的至少一个的平滑版本归因于不同类型的传输模式的地震事件相关联,以及使用不太平滑或不平滑的版本来更新移位估计 与地震事件相关联的至少一组地震事件或属性。 还描述了与该方法相关联的相关计算机系统和计算机程序产品。

    System and method for estimating seismic material properties
    32.
    发明授权
    System and method for estimating seismic material properties 有权
    用于估计地震材料性质的系统和方法

    公开(公告)号:US06903999B2

    公开(公告)日:2005-06-07

    申请号:US10181234

    申请日:2001-01-19

    摘要: A method for estimating near-surface material properties in the vicinity of a locally dense group of seismic receivers is disclosed. The method includes receiving seismic data that has been measured by a locally dense group of seismic receivers. Local derivatives of the wavefield are estimated such that the derivatives are centered at a single location preferably using the Lax-Wendroff correction. Physical relationships between the estimated derivatives including the free surface condition and wave equations are used to estimate near-surface material properties in the vicinity of the receiver group. Another embodiment of the invention is disclosed wherein the physical relationships used to estimate material properties are derived from the physics of plane waves arriving at the receiver group, and the group of receivers does not include any buried receivers.

    摘要翻译: 公开了一种用于估计局部密集的地震接收机组附近的近表面材料特性的方法。 该方法包括接收由局部密集的地震接收器组测量的地震数据。 估计波场的局部导数,使得导数优选地使用Lax-Wendroff校正在单个位置为中心。 使用估计的导数(包括自由表面条件和波动方程)之间的物理关系来估计接收器组附近的近地表面材料特性。 公开了本发明的另一个实施例,其中用于估计材料属性的物理关系是从到达接收器组的平面波的物理学得出的,并且接收器组不包括任何掩埋的接收器。

    METHOD FOR DETERMINING SHEAR-WAVE VELOCITY MODEL FOR DEPTH MIGRATION OF MODE-CONVERTED DATA
    33.
    发明申请
    METHOD FOR DETERMINING SHEAR-WAVE VELOCITY MODEL FOR DEPTH MIGRATION OF MODE-CONVERTED DATA 有权
    用于确定模式转换数据深度移动的剪切波速度模型的方法

    公开(公告)号:US20040220743A1

    公开(公告)日:2004-11-04

    申请号:US10426554

    申请日:2003-04-30

    IPC分类号: G01V001/28

    CPC分类号: G01V1/286 G01V1/303

    摘要: The present invention provides for a method of processing mode converted seismic data. The method comprises acquiring seismic data and determining a P-wave velocity model for the seismic data. An S-wave velocity model is determined from the P-wave velocity model. The mode converted seismic data are depth migrated forming CIP mode converted seismic data gathers. Corrected S-wave velocities are determined from near-offset data of the CIP gathers which corrects the depth migrated mode converted seismic data to the P-wave velocity model depth. A correction factor is provided and the iterating with the method quickly converges to a solution. This invention provides an efficient method of updating the shear wave velocity model for prestack depth migration of mode-converted data.

    摘要翻译: 本发明提供一种处理模式转换的地震数据的方法。 该方法包括获取地震数据并确定地震数据的P波速度模型。 从P波速度模型确定S波速度模型。 模式转换的地震数据是深度迁移形成CIP模式转换的地震数据采集。 校正的S波速度由CIP聚集的近偏移数据确定,其将深度迁移模式转换的地震数据校正为P波速度模型深度。 提供了一个校正因子,并且使用该方法迭代快速收敛到一个解。 本发明提供了一种更新模式转换数据的叠前深度偏移的剪切波速度模型的有效方法。

    System and method for estimating seismic material properties
    34.
    发明申请
    System and method for estimating seismic material properties 有权
    用于估计地震材料性质的系统和方法

    公开(公告)号:US20030117894A1

    公开(公告)日:2003-06-26

    申请号:US10181234

    申请日:2002-10-16

    IPC分类号: G01V001/00

    摘要: A method for estimating near-surface material properties in the vicinity of a locally dense group of seismic receivers is disclosed. The method includes receiving seismic data that has been measured by a locally dense group of seismic receivers. Local derivatives of the wavefield are estimated such that the derivatives are centered at a single location preferably using the Lax-Wendroff correction. Physical relationships between the estimated derivatives including the free surface condition and wave equations are used to estimate near-surface material properties in the vicinity of the receiver group. Another embodiment of the invention is disclosed wherein the physical relationships used to estimate material properties are derived from the physics of plane waves arriving at the receiver group, and the group of receivers does not include any buried receivers

    摘要翻译: 公开了一种用于估计局部密集的地震接收机组附近的近表面材料特性的方法。 该方法包括接收由局部密集的地震接收器组测量的地震数据。 估计波场的局部导数,使得导数优选地使用Lax-Wendroff校正在单个位置为中心。 使用估计的导数(包括自由表面条件和波动方程)之间的物理关系来估计接收器组附近的近地表面材料性质。 公开了本发明的另一个实施例,其中用于估计材料属性的物理关系是从到达接收器组的平面波的物理学得出的,并且接收器组不包括任何掩埋接收器

    Method and apparatus for acquiring offset checkshot survey data using tube-wave conversion
    35.
    发明申请
    Method and apparatus for acquiring offset checkshot survey data using tube-wave conversion 失效
    使用管波转换获取偏移检查调查数据的方法和装置

    公开(公告)号:US20020044498A1

    公开(公告)日:2002-04-18

    申请号:US09961592

    申请日:2001-09-24

    IPC分类号: G01V001/00

    CPC分类号: G01V1/286 G01V1/42

    摘要: A method and apparatus for reliable and low-cost acquisition of offset checkshot survey data using tube wave conversion. An acoustic receiver is deployed in a fluid-filled well, preferably at or near the top thereof. At least one tube-wave conversion point is used, such as an interface between two immiscible fluids, a change in casing geometry or a wellbore constriction. The traveltime of a tube wave from the tube-wave conversion point to the acoustic receiver is determined. Then, a seismic signal is generated at a laterally offset location. The total seismic signal traveltime along a raypath from the source location to the tube-wave conversion point and then upwardly through the fluid-filled well to the acoustic receiver is measured. The previously determined tube-wave traveltime from the conversion point to the acoustic receiver is then subtracted from the total traveltime to obtain the seismic signal traveltime from the source location to the tube-wave conversion point.

    摘要翻译: 一种使用管波转换可靠和低成本采集偏移检查数据的方法和装置。 声学接收器部署在流体填充的井中,优选在其顶部或附近。 使用至少一个管波转换点,例如两个不混溶流体之间的界面,壳体几何形状的改变或井眼收缩。 确定从管波转换点到声波接收器的管波的行进时间。 然后,在横向偏移位置处产生地震信号。 测量从源位置到管 - 波转换点,然后向上通过流体填充井到声接收器的射线路径的总地震信号行进时间。 然后从总转移时间中减去从转换点到声接收机的先前确定的管波行进时间,以获得从源位置到管波转换点的地震信号行进时间。

    Converted-wave processing in many-layered anisotropic media
    36.
    发明授权
    Converted-wave processing in many-layered anisotropic media 失效
    多层各向异性介质中的转换波处理

    公开(公告)号:US6128580A

    公开(公告)日:2000-10-03

    申请号:US287933

    申请日:1999-04-07

    申请人: Leon Thomsen

    发明人: Leon Thomsen

    IPC分类号: G01V1/28 G01V1/36

    摘要: The instant invention provides a method for processing converted-wave data into interpretable images using a compact two-parameter model. The method broadly comprises the steps of: collecting both P-wave and converted-wave seismic data; identifying the arrival times of the P-wave and the converted-wave data; computing the vertical velocity ratio from the arrival time data; computing the moveout velocity ratio from the corresponding moveout velocities; computing the effective velocity ratio from the vertical velocity ratio and the moveout velocity ratio; and computing the conversion point from the short-spread P-wave moveout velocity for each reflector, from the effective velocity ratio, the C-wave moveout velocity ratio, and from the arrival time data.

    摘要翻译: 本发明提供了一种使用紧凑的双参数模型将转换波数据处理成可解释图像的方法。 该方法广泛地包括以下步骤:收集P波和转换波地震数据; 识别P波和转换波数据的到达时间; 从到达时间数据计算垂直速度比; 从相应的移动速度计算出移动速度比; 从垂直速度比和移出速度比计算有效速比; 并根据有效速度比,C波移出速度比和到达时间数据,计算出每个反射器的短波P波移动速度的转换点。

    EXTRACTING SV SHEAR DATA FROM P-WAVE MARINE DATA

    公开(公告)号:US20160349390A1

    公开(公告)日:2016-12-01

    申请号:US15084830

    申请日:2016-03-30

    发明人: Bob A. Hardage

    IPC分类号: G01V1/28 G01V1/38

    摘要: A system and method of processing seismic data obtained using a plurality of towed single-component receivers in a marine environment is described, the towed single-component receivers configured to measure compressional P waves. The method comprises retrieving seismic data from a storage device, the seismic data comprising P-P data and shear mode data, wherein the P-P data and shear mode data were both received at the towed single-component receivers configured to measure compressional P waves to generate the seismic data. The method further comprises processing the seismic data to extract SV-P shear mode data and generating shear mode image data based on the extracted shear mode data.

    Extracting SV shear data from P-wave marine data
    39.
    发明授权
    Extracting SV shear data from P-wave marine data 有权
    从P波海洋数据中提取SV剪切数据

    公开(公告)号:US08325559B2

    公开(公告)日:2012-12-04

    申请号:US13413562

    申请日:2012-03-06

    申请人: Bob A. Hardage

    发明人: Bob A. Hardage

    IPC分类号: G01V1/28

    摘要: A system and method of processing seismic data obtained using a plurality of towed single-component receivers in a marine environment is described, the towed single-component receivers configured to measure compressional P waves. The method comprises retrieving seismic data from a storage device, the seismic data comprising P-P data and shear mode data, wherein the P-P data and shear mode data were both received at the towed single-component receivers configured to measure compressional P waves to generate the seismic data. The method further comprises processing the seismic data to extract SV-P shear mode data and generating shear mode image data based on the extracted shear mode data.

    摘要翻译: 描述了一种用于处理在海洋环境中使用多个牵引单组分接收器获得的地震数据的系统和方法,所述拖曳单分量接收器被配置为测量压缩P波。 该方法包括从存储设备检索地震数据,地震数据包括PP数据和剪切模式数据,其中PP数据和剪切模式数据都被接收在被配置成测量压缩P波以产生地震的拖曳单分量接收机 数据。 该方法还包括处理地震数据以提取SV-P剪切模式数据,并基于提取的剪切模式数据产生剪切模式图像数据。

    EXTRACTING SV SHEAR DATA FROM P-WAVE SEISMIC DATA
    40.
    发明申请
    EXTRACTING SV SHEAR DATA FROM P-WAVE SEISMIC DATA 有权
    从P波形地震数据中提取SV剪切数据

    公开(公告)号:US20120051177A1

    公开(公告)日:2012-03-01

    申请号:US13287746

    申请日:2011-11-02

    申请人: Bob A. Hardage

    发明人: Bob A. Hardage

    IPC分类号: G01V1/30 G01V1/00

    CPC分类号: G01V1/286

    摘要: A system and method of processing seismic data obtained using a surface-based receiver configured to measure vertical movement of the Earth includes retrieving seismic data from a storage device, the seismic data comprising P-P data and shear mode data. The P-P data and shear mode data were both received at a surface-based receiver configured to measure vertical movement of the Earth to generate the seismic data. The system and method further include processing the seismic data to extract the shear mode data and generating a shear mode image based on the extracted shear mode data.

    摘要翻译: 使用被配置为测量地球的垂直运动的基于地面的接收器获得的地震数据处理的系统和方法包括从存储设备检索地震数据,所述地震数据包括P-P数据和剪切模式数据。 P-P数据和剪切模式数据都被接收在基于地面的接收机上,该接收机被配置为测量地球的垂直运动以产生地震数据。 该系统和方法还包括处理地震数据以提取剪切模式数据并基于提取的剪切模式数据产生剪切模式图像。