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1.发明授权公开(公告)号：US06522136B1
公开(公告)日：2003-02-18
申请号：US09528881
申请日：2000-03-20
IPC分类号： G01V300
CPC分类号： G01N24/081 , G01R33/4625 , G01V3/32
摘要： A method for determining a characteristic of formations surrounding an earth borehole, includes the following steps: (a) providing a logging device that is moveable through the borehole; (b) producing, from the logging device, a static magnetic field in the formations; (c) transmitting, into the formations, from the logging device, a magnetic pulse sequence and receiving, during the pulse sequence, magnetic resonance spin echo signals; the magnetic pulse sequence having a portion of a pulse acquisition sequence with relatively long pulse spacing times tE,1 and another portion of the pulse acquisition sequence with relatively short pulse spacing times tE,2; and (d) repeating step (c) with pulse spacing times tE,2 that are different than tE,2;(e) deriving respective T2 distributions from the spin echo signals obtained during the another portion of the pulse acquisition sequence of step (c) and during the another portion of the pulse acquisition sequence of step (d); and (f) determining the characteristic of the formations from the respective T2 distributions.
摘要翻译： 一种用于确定围绕地球钻孔的地层特征的方法包括以下步骤：（a）提供可通过钻孔移动的测井装置; （b）从测井装置产生地层中的静磁场; （c）在测井装置中将磁脉冲序列传送到地层中，并在脉冲序列期间接收磁共振自旋回波信号; 具有脉冲获取序列的一部分的磁脉冲序列具有相对长的脉冲间隔时间tE，1和脉冲获取序列的另一部分具有相对短的脉冲间隔时间tE，2; 以及（d）以不同于tE，2的脉冲间隔时间tE，2重复步骤（c）;（e）从在步骤（c）的脉冲获取序列的另一部分期间获得的自旋回波信号导出相应的T2分布 ）并且在步骤（d）的脉冲获取序列的另一部分期间; 和（f）从相应的T2分布确定地层的特征。
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公开(公告)号：US6133735A
公开(公告)日：2000-10-17
申请号：US198535
申请日：1998-11-24
申请人： Martin D. Hurlimann , Yi-Quao Song , Seungoh Ryu , Pabitra N. Sen
发明人： Martin D. Hurlimann , Yi-Quao Song , Seungoh Ryu , Pabitra N. Sen
CPC分类号： G01V3/32 , G01N24/081
摘要： A technique is provided for determining a nuclear magnetic resonance characteristic of formations surrounding an earth borehole, including the following steps: providing a logging device that is moveable through the borehole; providing, on the logging device, first and second coils having respective axes that are generally orthogonal; producing, at the logging device, a prepolarizing signal; applying pulse sequence signals to the first and second coils, the pulse sequence signals implementing repeated refocusing of spins in the formations by both adiabatic and non-adiabatic reorienting of the spins to form spin echoes; and detecting, at the logging device, the spin echoes from the formations, the spin echoes being indicative of the nuclear magnetic resonance characteristic of the formations.
摘要翻译： 提供了一种用于确定围绕地球钻孔的地层的核磁共振特性的技术，包括以下步骤：提供可通过钻孔移动的测井装置; 在测井装置上提供具有大致正交的相应轴的第一和第二线圈; 在测井装置处产生预偏振信号; 将脉冲序列信号施加到第一和第二线圈，脉冲序列信号通过绝热的绝热和非绝热重新定向来形成自旋回波，从而在地层中重复重新聚焦在地层中; 并且在测井装置处检测来自地层的自旋回波，自旋回波指示地层的核磁共振特征。
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3.发明授权
公开(公告)号：US4703277A
公开(公告)日：1987-10-27
申请号：US599888
申请日：1984-04-13
摘要： Well logging techniques are disclosed which use and/or measure formation textural parameters. A disclosed formation textural model is bimodal in nature, and includes fractions of spherical grains and of platey grains having a single aspect ratio. This model is used in obtaining improved well logging recordings.
摘要翻译： 公开了使用和/或测量形成结构参数的测井技术。 所公开的地层纹理模型本质上是双峰的，并且包括具有单一纵横比的球形颗粒和板状颗粒的分数。 该模型用于获得改进的测井记录。
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公开(公告)号：US08096354B2
公开(公告)日：2012-01-17
申请号：US12121311
申请日：2008-05-15
申请人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
发明人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
CPC分类号： E21B43/26 , E21B47/01 , E21B47/123
摘要： Methods and related systems for use with a wireline tool system. A wireline cable designed to deploy a wireline tool into a wellbore from a surface. The wireline cable includes one or more conducting members for communication between the wireline tool and the surface. A plurality of sensing elements located on the wireline cable in a spaced apart fashion along a length of the wireline cable, wherein each sensing element is in communication with one or more adjacent sensing element.
摘要翻译： 用于电缆工具系统的方法和相关系统。 设计用于将电缆工具从表面部署到井筒中的有线电缆。 有线电缆包括用于在电缆工具和表面之间连通的一个或多个导电构件。 沿着有线电缆的长度以间隔开的方式位于有线电缆上的多个感测元件，其中每个感测元件与一个或多个相邻的感测元件连通。
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5.发明申请公开(公告)号：US20090285051A1
公开(公告)日：2009-11-19
申请号：US12121325
申请日：2008-05-15
申请人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
发明人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
IPC分类号： G01V1/38
CPC分类号： G01V1/38
摘要： 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.
摘要翻译： 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。
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6.发明授权公开(公告)号：US07852708B2
公开(公告)日：2010-12-14
申请号：US12121325
申请日：2008-05-15
申请人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
发明人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
IPC分类号： G01V1/38
CPC分类号： G01V1/38
摘要： 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.
摘要翻译： 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。
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公开(公告)号：US06366086B1
公开(公告)日：2002-04-02
申请号：US09199019
申请日：1998-11-24
申请人： Pabitra N. Sen
发明人： Pabitra N. Sen
IPC分类号： G01U300
CPC分类号： G01V3/32 , G01N24/081
摘要： A method for the determining a nuclear magnetic resonance characteristic of earth formations surrounding a borehole, includes the following steps: providing a logging device that is movable through the borehole, the logging device having a longitudinal axis; providing a first coil, in the logging device, for generating a magnetic field in the formations; providing a second coil in the logging device; applying a polarizing signal to the first coil; detecting, with the second coil, magnetic resonance of spins in the formations that are precessing around earth's magnetic field; and providing a third coil in the logging device, the third coil being operative to produce a further magnetic field in the borehole that reduces the contribution of spins in the borehole to the magnetic resonance detected by the second coil.
摘要翻译： 用于确定围绕钻孔的地层的核磁共振特性的方法包括以下步骤：提供可移动穿过钻孔的测井装置，测井装置具有纵向轴线; 在测井装置中提供用于在地层中产生磁场的第一线圈; 在测井装置中提供第二线圈; 向所述第一线圈施加偏振信号; 用第二线圈检测在地球磁场附近的地层中的自旋磁共振; 以及在所述测井装置中提供第三线圈，所述第三线圈可操作以在所述钻孔中产生另外的磁场，从而将所述钻孔中的自旋的贡献减小到由所述第二线圈检测到的磁共振。
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公开(公告)号：US09176081B2
公开(公告)日：2015-11-03
申请号：US13097404
申请日：2011-04-29
申请人： Pabitra N. Sen , Gabriela Leu , Nicholas Drenzek , Thomas J. Neville , Yi-Qiao Song , Ravinath Kausik Kadayam Viswanathan
发明人： Pabitra N. Sen , Gabriela Leu , Nicholas Drenzek , Thomas J. Neville , Yi-Qiao Song , Ravinath Kausik Kadayam Viswanathan
CPC分类号： G01N24/081
摘要： Systems and methods for magic angle spinning nuclear magnetic resonance analysis of samples from unconventional reservoirs are described. Fast and inexpensive methods are described that can provide reliable information on TOC content, type, and maturity (via the relative abundances of different hydrocarbons, for example) without the need for more extensive sample preparation or destruction. If care is taken during sample recovery and storage, NMR can also yield an estimate of gas-in-place, including detailed typing (e.g. methane vs. ethane). The described MAS NMR analysis is used to determine various properties of unconventional reservoirs, including gas and oil shales, which are useful in evaluating their worth and producibility.
摘要翻译： 描述了来自非常规储层的样品的魔角旋转核磁共振分析的系统和方法。 描述了可以提供关于TOC含量，类型和成熟度的可靠信息（通过例如不同碳氢化合物的相对丰度）而不需要更广泛的样品制备或破坏的快速和便宜的方法。 如果在样品回收和储存过程中要小心，NMR也可以产生现场气体的估计，包括详细分类（如甲烷对乙烷）。 描述的MAS NMR分析用于确定非常规储层的各种性质，包括气体和油页岩，可用于评估其价值和可生产性。
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公开(公告)号：US07926562B2
公开(公告)日：2011-04-19
申请号：US12121302
申请日：2008-05-15
申请人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
发明人： Martin E. Poitzsch , Pabitra N. Sen , Karen Wiemer , Guillemette Picard , Muthusamy Vembusubramanian
IPC分类号： E21B49/00
CPC分类号： E21B43/26 , E21B47/01 , E21B47/123
摘要： 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.
摘要翻译： 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。
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10.发明授权System and method for downhole time-of-flight sensing, remote NMR detection of fluid flow in rock formations 有权井下飞行时间感测的系统和方法，岩层中流体流动的远程核磁共振检测公开(公告)号：US07528600B2
公开(公告)日：2009-05-05
申请号：US11608469
申请日：2006-12-08
申请人： Pabitra N. Sen , Yi-Qiao Song , John P. Horkowitz
发明人： Pabitra N. Sen , Yi-Qiao Song , John P. Horkowitz
IPC分类号： G01V3/00
CPC分类号： G01V3/32
摘要： A system and method for measuring fluid flow in a wellbore in an earth formation using time-of-flight (TOF) sensing and remote detection nuclear magnetic resonance (NMR) techniques, by applying a magnetic field to the formation to polarize spins present in a portion of the formation, providing an encoding shell in the formation, selecting an encoding volume from the encoding shell, applying an encoding signal to excite the spins in the encoding volume, introducing a time delay to the encoding signal, providing a detection shell in the formation, applying a detection signal to the detection shell, detecting an NMR signal generated by the migration of spins from the encoding shell to the detection shell, and collecting TOF data corresponding to time elapsed from when a spin is encoded to when the spin reaches the detection shell.
摘要翻译： 使用飞行时间（TOF）感测和远程检测核磁共振（NMR）技术测量地层中的井眼中的流体流动的系统和方法，通过对地层施加磁场以使存在于 在地层中提供编码外壳，从编码外壳中选择编码体积，应用编码信号来激励编码体积中的自旋，向编码信号引入时间延迟，在编码信号中提供检测外壳 形成，向检测壳施加检测信号，检测通过旋转从编码壳向检测壳的迁移而产生的NMR信号，以及收集对应于从旋转编码到自旋达到时间的时间的TOF数据 检测壳。
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