System and method for seismic data acquisition
    2.
    发明授权
    System and method for seismic data acquisition 有权
    地震数据采集系统及方法

    公开(公告)号:US07773456B2

    公开(公告)日:2010-08-10

    申请号:US11866265

    申请日:2007-10-02

    申请人: Brian E. Hornby

    发明人: Brian E. Hornby

    IPC分类号: G01V1/00

    CPC分类号: G01V1/40

    摘要: There is provided herein a system and method for the imaging and monitoring of hydrocarbon reservoirs and other subsurface features preferably using seabed or surface sensors in conjunction with one or more downhole sensors. In one preferred embodiment, recordings will be simultaneously made using both seabed and downhole receivers. The energy source might be either a controlled seismic source or ambient noise. In one embodiment, the data will be used to compute a virtual VSP, checkshot, or similar survey by cross correlating a trace recorded at the surface with a trace recorded at depth. In another embodiment, the surface and well sensors will be permanently emplaced and repeated recordings over time will be used to form a time-varying (4-D) image of the subsurface.

    摘要翻译: 本文提供了用于成像和监测碳氢化合物储集层和其它地下特征的系统和方法,优选地使用与一个或多个井下传感器结合的海底或表面传感器。 在一个优选实施例中,使用海底和井下接收器同时进行记录。 能量源可能是受控的地震源或环境噪声。 在一个实施例中,数据将用于通过将在表面记录的轨迹与在深度记录的轨迹交叉相关来计算虚拟VSP,检查或类似的测量。 在另一个实施例中,表面和井传感器将被永久放置,并且随着时间推移的重复记录将用于形成地下时变(4-D)图像。

    Fracture discrimination using borehole frequency response of stoneley waves
    3.
    发明授权
    Fracture discrimination using borehole frequency response of stoneley waves 有权
    使用钻石波的钻孔频率响应进行断裂鉴别

    公开(公告)号:US06192316B1

    公开(公告)日:2001-02-20

    申请号:US09320486

    申请日:1999-05-26

    申请人: Brian E. Hornby

    发明人: Brian E. Hornby

    IPC分类号: G01V140

    CPC分类号: G01V1/50

    摘要: A computer system (30) and method of operating the same to analyze well log data so as to distinguish fractures from drilling artifacts, such as caves, washouts, and breakouts, is disclosed. According to the disclosed system and method, a Stoneley wave well log obtained at a plurality of depths is analyzed at a low and a high frequency, to generate a low frequency reflection coefficient trace over depth and a high frequency reflection coefficient trace over depth. Comparison of these reflection coefficient traces with one another will indicate whether a reflecting feature includes a fracture (as indicated by good low frequency response) or a cave, washout, or other artifact (as indicated by good high frequency response), or both. The particular methods disclosed include the generation of the reflection coefficient traces through back-projection stacking of deconvolved impulse traces at both frequencies, and applying and evaluating an envelope function to the stacked traces.

    摘要翻译: 公开了一种计算机系统(30)及其操作方法以分析测井数据,以便将裂缝与诸如洞穴,冲洗和爆破之类的钻孔伪影区分开。 根据所公开的系统和方法,以低和高频率分析在多个深度处获得的斯通利波浪测井,以产生深度上的低频反射系数轨迹和深度上的高频反射系数轨迹。 这些反射系数轨迹彼此的比较将指示反射特征是否包括裂缝(如良好的低频响应所指示)或洞穴,冲洗或其他伪像(如由高频响应所示)或两者。 所公开的特定方法包括通过在两个频率处的去卷积脉冲迹线的背投影堆叠来产生反射系数迹线,以及对包层函数应用并评估堆叠迹线。

    SEISMIC IMAGING WITH NATURAL GREEN'S FUNCTIONS DERIVED FROM VSP DATA
    4.
    发明申请
    SEISMIC IMAGING WITH NATURAL GREEN'S FUNCTIONS DERIVED FROM VSP DATA 有权
    从VSP数据中获取的具有自然绿色功能的地震成像

    公开(公告)号:US20080130411A1

    公开(公告)日:2008-06-05

    申请号:US11866862

    申请日:2007-10-03

    IPC分类号: G01V1/28

    CPC分类号: G01V1/28 G01V2210/51

    摘要: The methods described herein are conceptually similar to classical migration/imaging for surface seismic data. However, instead of using computed (estimated) Green's functions in the imaging process, the instant invention utilizes measured (near-exact) Green's functions from VSP data to image the surface seismic data. Although the instant invention is best utilized where the velocity profile is approximately 1D (i.e., v(z)), the methods disclosed herein can also be extended to instances where there are some lateral velocity variations. Under these conditions, the instant invention allows for imaging surface seismic data and ‘self-imaging’ VSP data without first having to estimate a velocity model. The measurements obtained from the VSP data can also be used as a tool for calibrating computed Green's functions and migration operators.

    摘要翻译: 本文描述的方法在概念上类似于表面地震数据的经典迁移/成像。 然而,本发明不是在成像过程中使用计算的(估计的)绿色函数,而是利用来自VSP数据的测量(近似精确的)格林函数对地表地震数据进行成像。 虽然本发明在速度分布近似为1D(即,v(z))的情况下被最佳利用,但是本文公开的方法也可以扩展到存在一些横向速度变化的情况。 在这些条件下,本发明允许对表面地震数据和“自成像”VSP数据进行成像,而无需首先估计速度模型。 从VSP数据获得的测量值也可以用作校准计算的Green函数和迁移算子的工具。

    Method for determining formation permeability by comparing measured tube
waves with formation and borehole parameters
    5.
    发明授权
    Method for determining formation permeability by comparing measured tube waves with formation and borehole parameters 失效
    通过比较测量的管波与地层和钻孔参数来确定地层渗透率的方法

    公开(公告)号:US4797859A

    公开(公告)日:1989-01-10

    申请号:US058973

    申请日:1987-06-08

    申请人: Brian E. Hornby

    发明人: Brian E. Hornby

    IPC分类号: G01V1/50 G01V1/40

    CPC分类号: G01V1/50

    摘要: A method for determining the fluid mobility or permeability of subsurface formations using borehole measurements of the tube wave. The slowness of an hypothetical tube wave travelling in an elastic, nonpermeable medium is computed based on various measured parameters such as the formation matrix density, fluid density and fluid acoustic slowness. This elastic model slowness is subtracted from the measured tube wave slowness of a selected formation traversed by the borehole, and the difference is used to determine the formation permeability.

    摘要翻译: 使用管波的井眼测量来确定地下地层的流体迁移率或渗透率的方法。 基于各种测量参数(例如形成基质密度,流体密度和流体声学缓慢度)计算在弹性不渗透介质中行进的假想管波的缓慢。 从钻孔穿过的选定地层的测量管波慢度中减去弹性模型的慢度,并用差异来确定地层渗透率。

    System and method of 3D salt flank VSP imaging with transmitted waves
    6.
    发明授权
    System and method of 3D salt flank VSP imaging with transmitted waves 有权
    具有透射波的3D盐翼VSP成像系统和方法

    公开(公告)号:US08659974B2

    公开(公告)日:2014-02-25

    申请号:US13049678

    申请日:2011-03-16

    IPC分类号: G01V1/28

    摘要: According to a preferred aspect of the instant invention, there is provided herein a system and method for imaging complex subsurface geologic structures such as salt dome flanks using VSP data. In the preferred arrangement, a receiver wave field will be downward continued through a salt flood model and a source wave field will be upward continued through a sediment flood model until they “meet” at the subsurface locations of the VSP receivers. The source and receiver wave fields will be cross correlated as an imaging condition at each depth interval.

    摘要翻译: 根据本发明的优选方面,本文提供了使用VSP数据对复杂地下地质结构(例如盐拱顶侧面)成像的系统和方法。 在优选的布置中,接收器波场将通过盐水模型向下继续,并且源波场将通过沉积物洪水模型向上继续,直到它们在VSP接收器的地下位置“满足”为止。 源和接收器波场将作为每个深度间隔的成像条件互相关。

    Seismic imaging with natural Green's functions derived from VSP data
    7.
    发明授权
    Seismic imaging with natural Green's functions derived from VSP data 有权
    具有天然绿色功能的地震成像源自VSP数据

    公开(公告)号:US07952960B2

    公开(公告)日:2011-05-31

    申请号:US11866862

    申请日:2007-10-03

    IPC分类号: G01V1/00

    CPC分类号: G01V1/28 G01V2210/51

    摘要: The methods described herein are conceptually similar to classical migration/imaging for surface seismic data. However, instead of using computed (estimated) Green's functions in the imaging process, the instant invention utilizes measured (near-exact) Green's functions from VSP data to image the surface seismic data. Although the instant invention is best utilized where the velocity profile is approximately 1D (i.e., v(z)), the methods disclosed herein can also be extended to instances where there are some lateral velocity variations. Under these conditions, the instant invention allows for imaging surface seismic data and ‘self-imaging’ VSP data without first having to estimate a velocity model. The measurements obtained from the VSP data can also be used as a tool for calibrating computed Green's functions and migration operators.

    摘要翻译: 本文描述的方法在概念上类似于表面地震数据的经典迁移/成像。 然而,本发明不是在成像过程中使用计算的(估计的)绿色函数,而是利用来自VSP数据的测量(近似精确的)格林函数对地表地震数据进行成像。 虽然本发明在速度分布近似为1D(即,v(z))的情况下被最佳利用,但是本文公开的方法也可以扩展到存在一些横向速度变化的情况。 在这些条件下,本发明允许对表面地震数据和“自成像”VSP数据进行成像,而无需首先估计速度模型。 从VSP数据获得的测量值也可以用作校准计算的Green函数和迁移算子的工具。

    SYSTEM AND METHOD FOR SEISMIC DATA ACQUISITION
    8.
    发明申请
    SYSTEM AND METHOD FOR SEISMIC DATA ACQUISITION 有权
    地震数据采集系统与方法

    公开(公告)号:US20080080308A1

    公开(公告)日:2008-04-03

    申请号:US11866265

    申请日:2007-10-02

    申请人: Brian E. Hornby

    发明人: Brian E. Hornby

    IPC分类号: G01V1/28 G01V1/38 G01V1/40

    CPC分类号: G01V1/40

    摘要: There is provided herein a system and method for the imaging and monitoring of hydrocarbon reservoirs and other subsurface features preferably using seabed or surface sensors in conjunction with one or more downhole sensors. In one preferred embodiment, recordings will be simultaneously made using both seabed and downhole receivers. The energy source might be either a controlled seismic source or ambient noise. In one embodiment, the data will be used to compute a virtual VSP, checkshot, or similar survey by cross correlating a trace recorded at the surface with a trace recorded at depth. In another embodiment , the surface and well sensors will be permanently emplaced and repeated recordings over time will be used to form a time-varying (4-D) image of the subsurface.

    摘要翻译: 本文提供了用于成像和监测碳氢化合物储集层和其它地下特征的系统和方法,优选地使用与一个或多个井下传感器结合的海底或表面传感器。 在一个优选实施例中,使用海底和井下接收器同时进行记录。 能量源可能是受控的地震源或环境噪声。 在一个实施例中,数据将用于通过将在表面记录的轨迹与在深度记录的轨迹交叉相关来计算虚拟VSP,检查或类似的测量。 在另一个实施例中,表面和井传感器将被永久放置,并且随着时间推移的重复记录将用于形成地下时变(4-D)图像。

    Borehole logging methods for detection and imaging of formation
structural features
    9.
    发明授权
    Borehole logging methods for detection and imaging of formation structural features 失效
    钻孔测井方法用于检测和成像地层结构特征

    公开(公告)号:US4817059A

    公开(公告)日:1989-03-28

    申请号:US67677

    申请日:1987-06-26

    IPC分类号: G01V1/50 G01V1/40

    CPC分类号: G01V1/50

    摘要: Waveform data obtained in a borehole by a tool having a sonic source and an array of sonic detectors is analyzed to obtain an image of formation features within several tens of feet of the borehole, such as fractures, bed boundaries and other boreholes. A value of background sonic slowness is derived from the data and used to determine the sonic energy transit time from the source to each detector via each point in a grid of points extending into the formation and along the borehole. The time for a particular detector/point pair is used to extract the amplitude of the waveform from that detector at that time relative to operation of the source. Such amplitudes for the same point and for different detectors and tool positions are cumulated. The final values for all points are plotted as a variable density display which provides the desired image.

    SYSTEM AND METHOD OF 3D SALT FLANK VSP IMAGING WITH TRANSMITTED WAVES
    10.
    发明申请
    SYSTEM AND METHOD OF 3D SALT FLANK VSP IMAGING WITH TRANSMITTED WAVES 有权
    具有透射波的3D盐岩VSP成像系统与方法

    公开(公告)号:US20110228638A1

    公开(公告)日:2011-09-22

    申请号:US13049678

    申请日:2011-03-16

    IPC分类号: G01V1/28

    摘要: According to a preferred aspect of the instant invention, there is provided herein a system and method for imaging complex subsurface geologic structures such as salt dome flanks using VSP data. In the preferred arrangement, a receiver wave field will be downward continued through a salt flood model and a source wave field will be upward continued through a sediment flood model until they “meet” at the subsurface locations of the VSP receivers. The source and receiver wave fields will be cross correlated as an imaging condition at each depth interval.

    摘要翻译: 根据本发明的优选方面,本文提供了使用VSP数据对复杂地下地质结构(例如盐拱顶侧面)成像的系统和方法。 在优选的布置中,接收器波场将通过盐水模型向下继续,并且源波场将通过沉积物洪水模型向上继续,直到它们在VSP接收器的地下位置“满足”为止。 源和接收器波场将作为每个深度间隔的成像条件互相关。