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1. 发明授权

US10175378B2 System and method of focusing an array laterolog 有权
公开(公告)号：US10175378B2
公开(公告)日：2019-01-08
申请号：US14403455
申请日：2012-07-13
申请人： Shanjun Li , Luis Emilio San Martin , Michael S. Bittar , Jing Li
发明人： Shanjun Li , Luis Emilio San Martin , Michael S. Bittar , Jing Li
IPC分类号： G01V3/20 , G01V3/24
摘要： Various embodiments include apparatus and methods to make resistivity measurements in a borehole using tool having an array of electrodes operable to provide focused currents, measure corresponding voltages, and measure corresponding voltage differences to determine resistivity. Tools can be configured to operate at a plurality of modes when voltage differences at some frequencies are effectively unreadable. Additional apparatus, systems, and methods are disclosed.

2. 发明申请

US20150177406A1 SYSTEM AND METHOD OF FOCUSING AN ARRAY LATEROLOG 审中-公开
标题翻译：系统和方法聚焦阵列
公开(公告)号：US20150177406A1
公开(公告)日：2015-06-25
申请号：US14403455
申请日：2012-07-13
申请人： Shanjun Li , Luis Emilio San Martin , Michael S. Bittar , Jing Li
发明人： Shanjun Li , Luis Emilio San Martin , Michael S. Bittar , Jing Li
IPC分类号： G01V3/20
CPC分类号： G01V3/20 , G01V3/24
摘要： Various embodiments include apparatus and methods to make resistivity measurements in a borehole using tool having an array of electrodes operable to provide focused currents, measure corresponding voltages, and measure corresponding voltage differences to determine resistivity. Tools can be configured to operate at a plurality of modes when voltage differences at some frequencies are effectively unreadable. Additional apparatus, systems, and methods are disclosed.
摘要翻译：各种实施例包括使用具有可操作以提供聚焦电流，测量相应电压并测量对应的电压差以确定电阻率的电极阵列的工具在井眼中进行电阻率测量的装置和方法。当某些频率的电压差实际上不可读时，工具可被配置为以多种模式操作。公开了附加装置，系统和方法。

3. 发明授权

US09547100B2 Multi-array laterolog tools and methods with differential voltage measurements 有权
标题翻译：具有差分电压测量的多阵列后验工具和方法
公开(公告)号：US09547100B2
公开(公告)日：2017-01-17
申请号：US13884034
申请日：2011-11-02
申请人： Shanjun Li , Luis E San Martin , Michael S Bittar , Jing Li
发明人： Shanjun Li , Luis E San Martin , Michael S Bittar , Jing Li
IPC分类号： G01V3/20 , G01V3/24 , E21B49/00 , E21B47/10 , G01V3/28
CPC分类号： G01V3/20 , E21B47/102 , E21B49/00 , G01V3/24 , G01V3/28 , G01V2200/16
摘要： Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means. This novel arrangement of currents provides a complete set of measurements that enables one tool to simultaneously emulate a whole range of laterolog tools.
摘要翻译：多阵列后验工具系统和方法获取足够的阵列测量集，以提供不同阵列大小的后者工具测量。这种系统和方法提供多个调查深度，同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。在至少一些系统实施例中，有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。每个电流可以通过频率区分或通过某种其他方式可区分。这种新颖的电流布置提供了一整套测量，使一个工具能够同时模拟一整套后期工具。

4. 发明授权

US08844648B2 System and method for EM ranging in oil-based mud 有权
标题翻译：油基泥浆中EM范围的系统和方法
公开(公告)号：US08844648B2
公开(公告)日：2014-09-30
申请号：US13116069
申请日：2011-05-26
申请人： Michael S. Bittar , Jing Li , Shanjun Li , Michael D. Finke
发明人： Michael S. Bittar , Jing Li , Shanjun Li , Michael D. Finke
IPC分类号： E21B47/02 , E21B47/022
CPC分类号： E21B47/022
摘要： Nearby conductors such as pipes, well casing, etc., are detectable from within a borehole filled with an oil-based fluid. At least some method embodiments provide a current flow between axially-spaced conductive bridges on a drillstring. The current flow disperses into the surrounding formation and causes a secondary current flow in the nearby conductor. The magnetic field from the secondary current flow can be detected using one or more azimuthally-sensitive antennas. Direction and distance estimates are obtainable from the azimuthally-sensitive measurements, and can be used as the basis for steering the drillstring relative to the distant conductor. Possible techniques for providing current flow in the drillstring include imposing a voltage across an insulated gap or using a toroid around the drillstring to induce the current flow.
摘要翻译：诸如管道，井套管等的附近的导体可以从填充有油基流体的钻孔内检测。至少一些方法实施例提供了在钻柱上的轴向隔开的导电桥之间的电流。电流流向周围的地层，并在附近的导体中产生二次电流。可以使用一个或多个方位角敏感天线来检测来自次级电流的磁场。方向和距离估计可以从方位角敏感测量中获得，并且可以用作相对于远距离导体转向钻柱的基础。在钻柱中提供电流的可能技术包括在绝缘间隙上施加电压，或者在钻柱周围使用环形线来引起电流。

5. 发明申请

US20130234718A1 MULTI-ARRAY LATEROLOG TOOLS AND METHODS WITH DIFFERENTIAL VOLTAGE MEASUREMENTS 有权
标题翻译：具有差分电压测量的多阵列流变仪工具及方法
公开(公告)号：US20130234718A1
公开(公告)日：2013-09-12
申请号：US13884034
申请日：2011-11-02
申请人： Shanjun Li , Luis E. San Martin , Michael S. Bittar , Jing Li
发明人： Shanjun Li , Luis E. San Martin , Michael S. Bittar , Jing Li
IPC分类号： G01V3/20
CPC分类号： G01V3/20 , E21B47/102 , E21B49/00 , G01V3/24 , G01V3/28 , G01V2200/16
摘要： Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means. This novel arrangement of currents provides a complete set of measurements that enables one tool to simultaneously emulate a whole range of laterolog tools.
摘要翻译：多阵列后验工具系统和方法获取足够的阵列测量集，以提供不同阵列大小的后者工具测量。这种系统和方法提供多个调查深度，同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。在至少一些系统实施例中，有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。每个电流可以通过频率区分或通过某种其他方式可区分。这种新颖的电流布置提供了一整套测量，使一个工具能够同时模拟一整套后期工具。

6. 发明申请

US20130257436A1 Multi-Array Laterolog Tools and Methods 有权
标题翻译：多阵列立体工具和方法
公开(公告)号：US20130257436A1
公开(公告)日：2013-10-03
申请号：US13884181
申请日：2010-11-15
申请人： Michael S. Bittar , Shanjun Li , Jing Li
发明人： Michael S. Bittar , Shanjun Li , Jing Li
IPC分类号： G01V3/20
CPC分类号： G01V3/20 , G01V3/24
摘要： Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means. This novel arrangement of currents provides a complete set of measurements that enables one tool to simultaneously emulate a whole range of laterolog tools.
摘要翻译：多阵列后验工具系统和方法获取足够的阵列测量集，以提供不同阵列大小的后者工具测量。这种系统和方法提供多个调查深度，同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。在至少一些系统实施例中，有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。每个电流可以通过频率区分或通过某种其他方式可区分。这种新颖的电流布置提供了一整套测量，使一个工具能够同时模拟一整套后期工具。

7. 发明授权

US08947095B2 Multi-array laterolog tools and methods 有权
标题翻译：多阵列后验工具和方法
公开(公告)号：US08947095B2
公开(公告)日：2015-02-03
申请号：US13884181
申请日：2010-11-15
申请人： Michael S. Bittar , Shanjun Li , Jing Li
发明人： Michael S. Bittar , Shanjun Li , Jing Li
IPC分类号： G01V3/00 , G01V3/20 , G01V3/24
CPC分类号： G01V3/20 , G01V3/24
摘要： Multi-array laterolog tool systems and methods acquire a set of array measurements sufficient to provide laterolog tool measurements of differing array sizes. Such systems and method offer multiple depths of investigation while offering greater measurement stability in borehole environments having high resistivity contrasts. In at least some system embodiments, a wireline or LWD tool body has a center electrode positioned between multiple pairs of guard electrodes and a pair of return electrodes. The tool's electronics provide a current from the center electrode to the pair of return electrodes and currents from each pair of guard electrodes to the pair of return electrodes. Each of the currents may be distinguishable by frequency or distinguishable by some other means. This novel arrangement of currents provides a complete set of measurements that enables one tool to simultaneously emulate a whole range of laterolog tools.
摘要翻译：多阵列后验工具系统和方法获取足够的阵列测量集，以提供不同阵列大小的后者工具测量。这种系统和方法提供多个调查深度，同时在具有高电阻率对比度的钻孔环境中提供更大的测量稳定性。在至少一些系统实施例中，有线或LWD工具主体具有位于多对保护电极和一对返回电极之间的中心电极。工具的电子器件提供从中心电极到一对返回电极的电流以及从每对保护电极到一对返回电极的电流。每个电流可以通过频率区分或通过某种其他方式可区分。这种新颖的电流布置提供了一整套测量，使一个工具能够同时模拟一整套后期工具。

8. 发明授权

US09851428B2 Apparatus and method for temperature independent balancing of a tool 有权
公开(公告)号：US09851428B2
公开(公告)日：2017-12-26
申请号：US14413628
申请日：2012-07-13
申请人： Luis Emilio San Martin , Shanjun Li , Burkay Donderici , Wesley N. Ludwig
发明人： Luis Emilio San Martin , Shanjun Li , Burkay Donderici , Wesley N. Ludwig
IPC分类号： G01V3/00 , G01R35/00 , G01V3/20 , G01V3/18
CPC分类号： G01R35/005 , G01V3/18 , G01V3/20
摘要： Various embodiments include methods and apparatus structured to balance electrode pairs (112, 312) of a tool (105, 305) providing voltage equivalence between the electrode pairs. An electrically conductive wire (113, 313) coupling the electrodes of an electrode pair can be arranged such that resistance of the electrically conductive wire does not adversely affect the voltage equivalence. The electrically conductive wire can also be structured to provide temperature independent balancing by arranging the electrically conductive wire with respect to a measuring node (116, 316). Additional apparatus, systems, and methods are disclosed.

9. 发明申请

US20150219741A1 APPARATUS AND METHOD FOR TEMPERATURE INDEPENDENT BALANCING OF A TOOL 有权
标题翻译：用于工具的温度独立平衡的装置和方法
公开(公告)号：US20150219741A1
公开(公告)日：2015-08-06
申请号：US14413628
申请日：2012-07-13
申请人： Luis Emilio San Martin , Shanjun Li , Burkay Donderici , Wesley N. Ludwig
发明人： Luis Emilio San Martin , Shanjun Li , Burkay Donderici , Wesley N. Ludwig
IPC分类号： G01R35/00 , G01V3/18
CPC分类号： G01R35/005 , G01V3/18 , G01V3/20
摘要： Various embodiments include methods and apparatus structured to balance electrode pairs (112, 312) of a tool (105, 305) providing voltage equivalence between the electrode pairs. An electrically conductive wire (113, 313) coupling the electrodes of an electrode pair can be arranged such that resistance of the electrically conductive wire does not adversely affect the voltage equivalence. The electrically conductive wire can also be structured to provide temperature independent balancing by arranging the electrically conductive wire with respect to a measuring node (116, 316). Additional apparatus, systems, and methods are disclosed.
摘要翻译：各种实施例包括构造成平衡提供电极对之间的电压等效性的工具（105,305）的电极对（112,312）的方法和装置。可以布置耦合电极对的电极的导电线（113,313），使得导电线的电阻不会不利地影响电压等效。导电线还可以被构造成通过相对于测量节点（116,316）布置导电线来提供独立于温度的平衡。公开了附加装置，系统和方法。

10. 发明授权

US09115569B2 Real-time casing detection using tilted and crossed antenna measurement 有权
标题翻译：使用倾斜和交叉天线测量的实时套管检测
公开(公告)号：US09115569B2
公开(公告)日：2015-08-25
申请号：US13549679
申请日：2012-07-16
申请人： Yumei Tang , Michael S. Bittar , Shanjun Li
发明人： Yumei Tang , Michael S. Bittar , Shanjun Li
IPC分类号： E21B47/022 , G01V3/26
CPC分类号： E21B47/02216 , E21B47/022 , G01V3/26
摘要： Methods and apparatus for detecting nearby conductors such as pipes, well casing, etc., from within a borehole. A nearby casing string can be detected by transmitting an electromagnetic signal from a transmit antenna on a downhole logging tool and measuring a parallel response signal with a first receive antenna parallel to the transmit antenna and a perpendicular response signal with a second receive antenna perpendicular to the transmit antenna, both receive antennas on the downhole logging tool. As the tool rotates, the transmitting and measuring are repeated to determine the azimuthal dependence of the parallel and perpendicular response signals. The azimuthal dependence is analyzed to determine a diagonal component of said azimuthal dependence for each response signal. Distance to a casing string can be estimated using the diagonal component of each response signal. At least one of the antennas is preferably tilted.
摘要翻译：从钻孔内检测附近导体如管道，井套等的方法和装置。可以通过从井下测井工具上的发射天线发射电磁信号并且与平行于发射天线的第一接收天线测量并行响应信号和垂直于垂直于发射天线的第二接收天线的垂直响应信号来检测附近的套管柱发射天线，两个接收天线在井下测井工具上。当工具旋转时，重复发射和测量以确定平行和垂直响应信号的方位依赖性。分析方位依赖性以确定每个响应信号的所述方位依赖性的对角分量。可以使用每个响应信号的对角分量估计与套管柱的距离。天线中的至少一个优选地是倾斜的。

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