Downhole measurement of formation characteristics while drilling
    2.
    发明授权
    Downhole measurement of formation characteristics while drilling 有权
    钻井时地层特征的井下测量

    公开(公告)号:US08056408B2

    公开(公告)日:2011-11-15

    申请号:US12260225

    申请日:2008-10-29

    CPC classification number: E21B49/005 E21B49/081

    Abstract: A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements.

    Abstract translation: 一种用于确定围绕钻井的地层钻孔的性质的方法,其使用在钻柱上向下流动的钻井流体在钻柱的端部钻出,通过钻头离开,并朝向地球表面返回 钻柱与钻孔周边之间的环形空间,包括以下步骤:在钻柱附近获得钻头附近的井下钻头样品,当钻柱接近钻头时; 在钻头附近获得钻孔附近的井下钻孔后的钻头样品,在钻头从其钻出之后夹带钻井泥土; 对前置位采样执行预位测量; 对后位采样进行后位测量; 以及从后位测量和前位测量确定地层的属性。

    SENSING AND ACTUATING IN MARINE DEPLOYED CABLE AND STREAMER APPLICATIONS
    3.
    发明申请
    SENSING AND ACTUATING IN MARINE DEPLOYED CABLE AND STREAMER APPLICATIONS 有权
    海上分配电缆和流水线应用中的感应和动作

    公开(公告)号:US20090285051A1

    公开(公告)日:2009-11-19

    申请号:US12121325

    申请日:2008-05-15

    CPC classification number: G01V1/38

    Abstract: Methods and related systems are described for use with hydraulic fracturing and other oilfield applications. A tool body is positioned in a wellbore at a location near a subterranean rock formation being fractured. The tool body contains a plurality of deployable continuous fibers. At least some of the deployable continuous fibers are deployed into fractures within a subterranean rock formation. Each deployed fiber is continuous from the tool body to the rock formation. The number of deployable continuous fibers provides sufficient redundancy to make at least a target measurement relating to the fracturing process.

    Abstract translation: 描述了用于水力压裂和其他油田应用的方法和相关系统。 工具体位于靠近被破裂的地下岩层的位置的井眼中。 工具主体包含多个可展开的连续纤维。 至少部分可部署的连续纤维被部署到地下岩层内的裂缝中。 每个部署的纤维从工具主体连续到岩层。 可部署的连续纤维的数量提供了足够的冗余度,以至少进行与压裂过程有关的目标测量。

    Sensing and actuating in marine deployed cable and streamer applications
    5.
    发明授权
    Sensing and actuating in marine deployed cable and streamer applications 有权
    海运部署电缆和拖缆应用中的感应和启动

    公开(公告)号:US07852708B2

    公开(公告)日:2010-12-14

    申请号:US12121325

    申请日:2008-05-15

    CPC classification number: G01V1/38

    Abstract: Methods and related systems are described for use with hydraulic fracturing and other oilfield applications. A tool body is positioned in a wellbore at a location near a subterranean rock formation being fractured. The tool body contains a plurality of deployable continuous fibers. At least some of the deployable continuous fibers are deployed into fractures within a subterranean rock formation. Each deployed fiber is continuous from the tool body to the rock formation. The number of deployable continuous fibers provides sufficient redundancy to make at least a target measurement relating to the fracturing process.

    Abstract translation: 描述了用于水力压裂和其他油田应用的方法和相关系统。 工具体位于靠近被破裂的地下岩层的位置的井眼中。 工具主体包含多个可展开的连续纤维。 至少部分可部署的连续纤维被部署到地下岩层内的裂缝中。 每个部署的纤维从工具主体连续到岩层。 可部署的连续纤维的数量提供了足够的冗余度,以至少进行与压裂过程有关的目标测量。

    Method and apparatus for generating an axisymmetric magnetic field
    6.
    发明授权
    Method and apparatus for generating an axisymmetric magnetic field 失效
    用于产生轴对称磁场的方法和装置

    公开(公告)号:US07501817B1

    公开(公告)日:2009-03-10

    申请号:US09033965

    申请日:1998-03-03

    CPC classification number: G01N24/081 G01V3/32

    Abstract: The present invention is directed to a nuclear magnetic resonance apparatus and method for generating an axisymmetric magnetic field having long, straight contour lines in the resonance region. A magnetically permeable member is used to shape the static magnetic field generated by an array of permanent magnets. The magnetically permeable member minimizes variations of the static magnetic field in the formation due to vertical motion of the apparatus while obtaining a nuclear magnetic resonance measurement. Further, the magnetically permeable member may minimize variations of the static magnetic field in the formation due to lateral motion of the apparatus while obtaining a nuclear magnetic resonance measurement.

    Abstract translation: 本发明涉及一种用于产生在共振区域中具有长而直的轮廓线的轴对称磁场的核磁共振装置和方法。 磁导体构件用于塑造由永磁体阵列产生的静磁场。 在获得核磁共振测量的同时,由于设备的垂直运动,导磁部件使地层中的静磁场的变化最小化。 此外,导磁部件可以在获得核磁共振测量的同时由于设备的横向运动而最小化地层中的静磁场的变化。

    DOWNHOLE MEASUREMENT OF FORMATION CHARACTERISTICS WHILE DRILLING

    公开(公告)号:US20090050369A1

    公开(公告)日:2009-02-26

    申请号:US12260216

    申请日:2008-10-29

    CPC classification number: E21B49/005 E21B49/081

    Abstract: A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements.

    DOWNHOLE MEASUREMENT OF FORMATION CHARACTERISTICS WHILE DRILLING
    8.
    发明申请
    DOWNHOLE MEASUREMENT OF FORMATION CHARACTERISTICS WHILE DRILLING 有权
    钻井时形成特征的井下测量

    公开(公告)号:US20090049889A1

    公开(公告)日:2009-02-26

    申请号:US12260225

    申请日:2008-10-29

    CPC classification number: E21B49/005 E21B49/081

    Abstract: A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements.

    Abstract translation: 一种用于确定围绕钻井的地层钻孔的性质的方法,其使用在钻柱上向下流动的钻井流体在钻柱的端部钻出,通过钻头离开,并朝向地球表面返回 钻柱和钻孔周边之间的环形空间,包括以下步骤:在钻柱附近获得钻头附近的井下钻头样品,当钻柱接近钻头时; 在钻头附近获得钻孔附近的井下钻孔后的钻头样品,在钻头从其钻出之后夹带钻井泥土; 对前置位采样执行预位测量; 对后位采样进行后位测量; 以及从后位测量和前位测量确定地层的属性。

    Apparatus and method for computing a distribution of spin-spin relaxation times
    9.
    发明授权
    Apparatus and method for computing a distribution of spin-spin relaxation times 有权
    用于计算自旋 - 自旋弛豫时间分布的装置和方法

    公开(公告)号:US06184681B2

    公开(公告)日:2001-02-06

    申请号:US09187130

    申请日:1998-11-05

    CPC classification number: G01V3/32 G01N24/081

    Abstract: The present invention is directed to a method for computing a distribution of spin—spin relaxation times. The spin-echo amplitudes are obtained by hardware integration of the receiver voltages over a time window. A linear operator is utilized to map a relaxation-time distribution to spin-echoes, produce a singular value decomposition (SVD) of the linear operator, determine vectors of the SVD, and compress the spin-echo data using the vectors. To eliminate a telemetry bottleneck, the T2 spectrum is computed downhole and transmitted to the surface.

    Abstract translation: 本发明涉及一种用于计算自旋 - 自旋弛豫时间分布的方法。 自旋回波幅度通过时间窗口上的接收器电压的硬件积分获得。 利用线性算子将弛豫时间分布映射到自旋回波,产生线性运算符的奇异值分解(SVD),确定SVD的向量,并使用矢量压缩自旋回波数据。 为了消除遥测瓶颈,T2频谱在井下计算并传输到地面。

    Downhole measurement of formation characteristics while drilling
    10.
    发明授权
    Downhole measurement of formation characteristics while drilling 有权
    钻井时地层特征的井下测量

    公开(公告)号:US07752906B2

    公开(公告)日:2010-07-13

    申请号:US12260216

    申请日:2008-10-29

    CPC classification number: E21B49/005 E21B49/081

    Abstract: A method for determining a property of formations surrounding an earth borehole being drilled with a drill bit at the end of a drill string, using drilling fluid that flows downward through the drill string, exits through the drill bit, and returns toward the earth's surface in the annulus between the drill string and the periphery of the borehole, including the following steps: obtaining, downhole near the drill bit, a pre-bit sample of the mud in the drill string as it approaches the drill bit; obtaining, downhole near the drill bit, a post-bit sample of the mud in the annulus, entrained with drilled earth formation, after its egression from the drill bit; implementing pre-bit measurements on the pre-bit sample; implementing post-bit measurements on the post-bit sample; and determining a property of the formations from the post-bit measurements and the pre-bit measurements.

    Abstract translation: 一种用于确定围绕钻井的地层钻孔的性质的方法,其使用在钻柱上向下流动的钻井流体在钻柱的端部钻出,通过钻头离开,并朝向地球表面返回 钻柱和钻孔周边之间的环形空间,包括以下步骤:在钻柱附近获得钻头附近的井下钻头样品,当钻柱接近钻头时; 在钻头附近获得钻孔附近的井下钻孔后的钻头样品,在钻头从其钻出之后夹带钻井泥土; 对前置位采样执行预位测量; 对后位采样进行后位测量; 以及从后位测量和前位测量确定地层的属性。

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