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公开(公告)号:US20130106413A1
公开(公告)日:2013-05-02
申请号:US13287877
申请日:2011-11-02
申请人: Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
发明人: Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
IPC分类号: G01V3/32
CPC分类号: E21B47/082
摘要: A method and system for determining a geometry of a borehole includes forming an nuclear magnetic resonance (NMR) caliper with a plurality of coils and coupling the NMR caliper to a borehole assembly. The NMR caliper may be calibrated for porosity and the T2 of the drilling mud, prior to drilling, at the surface. After drilling commences, scans of the borehole may be conducted with each coil of the NMR caliper. Each scan may include propagating RF energy across a range of frequencies with each coil in order to excite a NMR signal at varying depths. Borehole wall distances from the NMR caliper may be determined by reviewing a plurality of T2 distributions from CPMG measurements derived from the scans. In some embodiments, borehole wall distances from the NMR caliper may be determined by reviewing porosity values derived from the scans.
摘要翻译: 用于确定钻孔几何形状的方法和系统包括用多个线圈形成核磁共振(NMR)卡尺并将NMR卡尺耦合到钻孔组件。 可以在钻井前在表面校准NMR厚度测量孔隙度和钻井泥浆的T2。 钻孔开始后,钻孔的扫描可以用NMR卡尺的每个线圈进行。 每个扫描可以包括在每个线圈的频率范围内传播RF能量,以便在不同的深度激发NMR信号。 可以通过从扫描导出的CPMG测量中查看多个T2分布来确定来自NMR厚度的孔壁距离。 在一些实施例中,可以通过检查从扫描导出的孔隙度值来确定来自NMR厚度的钻孔壁距离。
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公开(公告)号:US08941383B2
公开(公告)日:2015-01-27
申请号:US13287877
申请日:2011-11-02
申请人: Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
发明人: Tim Hopper , Nicholas J. Heaton , David T. Oliver , Luis E. Depavia , Yi-Qiao Song , Martin D. Hurlimann
CPC分类号: E21B47/082
摘要: A method and system for determining a geometry of a borehole includes forming an nuclear magnetic resonance (NMR) caliper with a plurality of coils and coupling the NMR caliper to a borehole assembly. The NMR caliper may be calibrated for porosity and the T2 of the drilling mud, prior to drilling, at the surface. After drilling commences, scans of the borehole may be conducted with each coil of the NMR caliper. Each scan may include propagating RF energy across a range of frequencies with each coil in order to excite a NMR signal at varying depths. Borehole wall distances from the NMR caliper may be determined by reviewing a plurality of T2 distributions from CPMG measurements derived from the scans. In some embodiments, borehole wall distances from the NMR caliper may be determined by reviewing porosity values derived from the scans.
摘要翻译: 用于确定钻孔几何形状的方法和系统包括用多个线圈形成核磁共振(NMR)卡尺并将NMR卡尺耦合到钻孔组件。 可以在钻井前在表面校准NMR厚度测量孔隙度和钻井泥浆的T2。 钻孔开始后,钻孔的扫描可以用NMR卡尺的每个线圈进行。 每个扫描可以包括在每个线圈的频率范围内传播RF能量,以便在不同的深度激发NMR信号。 可以通过从扫描导出的CPMG测量中查看多个T2分布来确定来自NMR厚度的孔壁距离。 在一些实施例中,可以通过检查从扫描导出的孔隙度值来确定来自NMR厚度的钻孔壁距离。
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公开(公告)号:US08860413B2
公开(公告)日:2014-10-14
申请号:US13288508
申请日:2011-11-03
申请人: Tim Hopper , Luis E. Depavia , Yi-Qiao Song , David T. Oliver
发明人: Tim Hopper , Luis E. Depavia , Yi-Qiao Song , David T. Oliver
CPC分类号: G01V3/32 , E21B47/00 , G01R33/3808
摘要: Methods and systems are provided that enable logging while drilling NMR measurements to be made with a tool having magnets with positions adjustable or movable relative to each other. Such movement can affect the depth of investigation of the NMR tool. A variety of moving assemblies can be used to effectuate the movement, which can be performed either at the surface or downhole. The tool also can include a magnetically permeable member to control the magnetic field gradient.
摘要翻译: 提供的方法和系统能够在钻探NMR测量时进行测井,该测量可以用具有相对于彼此可调节或可移动位置的磁体的工具进行。 这种运动可以影响NMR工具的研究深度。 可以使用各种移动组件来实现可在表面或井下进行的运动。 该工具还可以包括用于控制磁场梯度的导磁构件。
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公开(公告)号:US20120126809A1
公开(公告)日:2012-05-24
申请号:US13288508
申请日:2011-11-03
申请人: Tim Hopper , Luis E. Depavia , Yi-Qiao Song , David T. Oliver
发明人: Tim Hopper , Luis E. Depavia , Yi-Qiao Song , David T. Oliver
CPC分类号: G01V3/32 , E21B47/00 , G01R33/3808
摘要: Methods and systems are provided that enable logging while drilling NMR measurements to be made with a tool having magnets with positions adjustable or movable relative to each other. Such movement can affect the depth of investigation of the NMR tool. A variety of moving assemblies can be used to effectuate the movement, which can be performed either at the surface or downhole. The tool also can include a magnetically permeable member to control the magnetic field gradient.
摘要翻译: 提供的方法和系统能够在钻探NMR测量时进行测井,该测量可以用具有相对于彼此可调节或可移动位置的磁体的工具进行。 这种运动可以影响NMR工具的研究深度。 可以使用各种移动组件来实现可在表面或井下进行的运动。 该工具还可以包括用于控制磁场梯度的导磁构件。
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公开(公告)号:US09632203B2
公开(公告)日:2017-04-25
申请号:US13150871
申请日:2011-06-01
申请人: Tim Hopper , David G Cory , Julius Kusuma , Yi-Qiao Song , Martin D. Hurlimann , Martin E. Poitzsch
发明人: Tim Hopper , David G Cory , Julius Kusuma , Yi-Qiao Song , Martin D. Hurlimann , Martin E. Poitzsch
CPC分类号: G01V3/32 , G01N24/081 , G01R33/3607 , G01R33/3621
摘要: Methods and systems are provided for tools having non-resonant circuits for analyzing a formation and/or a sample. For example, nuclear magnetic resonance and resistivity tools can make use of a non-resonant excitation coil and/or a detection coil. These coils can achieve desired frequencies by the use of switches, thereby removing the requirement of tuning circuits that are typical in conventional tools.
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公开(公告)号:US08794318B2
公开(公告)日:2014-08-05
申请号:US13002913
申请日:2009-07-09
申请人: Edward Harrigan , Yves Barriol , Andrei I. Davydychev , Andrew J. Carnegie , Dean M. Homan , Srinand Karuppoor , Yi-Qiao Song , Tim Hopper , Henry N. Bachman , William B. Vandermeer , Anthony L. Collins , Mark A. Fredette
发明人: Edward Harrigan , Yves Barriol , Andrei I. Davydychev , Andrew J. Carnegie , Dean M. Homan , Srinand Karuppoor , Yi-Qiao Song , Tim Hopper , Henry N. Bachman , William B. Vandermeer , Anthony L. Collins , Mark A. Fredette
CPC分类号: E21B49/008 , E21B49/087 , E21B49/10
摘要: Subsurface formation evaluation comprising, for example, sealing a portion of a wall of a wellbore penetrating the formation, forming a hole through the sealed portion of the wellbore wall, injecting an injection fluid into the formation through the hole, and determining a saturation of the injection fluid in the formation by measuring a property of the formation proximate the hole while maintaining the sealed portion of the wellbore wall.
摘要翻译: 地下形成评估包括例如密封穿透地层的井眼的一部分壁,通过井壁的密封部分形成孔,通过孔将注射流体注入地层,并确定 通过在保持井筒壁的密封部分的同时测量邻近孔的形成的性质,在地层中注入流体。
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公开(公告)号:US20110198078A1
公开(公告)日:2011-08-18
申请号:US13002913
申请日:2009-07-09
申请人: Edward Harrigan , Yves BarrioL , Andrei I. Davydychev , Andrew J. Carnegie , Dean M. Homan , Srinand Karuppoor , Yi-Qiao Song , Tim Hopper , Henry N. Bachman , William B. Vandermeer , Anthony L. Collins , Mark A. Fredette
发明人: Edward Harrigan , Yves BarrioL , Andrei I. Davydychev , Andrew J. Carnegie , Dean M. Homan , Srinand Karuppoor , Yi-Qiao Song , Tim Hopper , Henry N. Bachman , William B. Vandermeer , Anthony L. Collins , Mark A. Fredette
CPC分类号: E21B49/008 , E21B49/087 , E21B49/10
摘要: Subsurface formation evaluation comprising, for example, sealing a portion of a wall of a wellbore penetrating the formation, forming a hole through the sealed portion of the wellbore wall, injecting an injection fluid into the formation through the hole, and determining a saturation of the injection fluid in the formation by measuring a property of the formation proximate the hole while maintaining the sealed portion of the wellbore wall.
摘要翻译: 地下形成评估包括例如密封穿透地层的井眼的一部分壁,通过井壁的密封部分形成孔,通过孔将注射流体注入地层,并确定 通过在保持井筒壁的密封部分的同时测量邻近孔的形成的性质,在地层中注入流体。
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