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公开(公告)号：US10408963B2
公开(公告)日：2019-09-10
申请号：US14401044
申请日：2012-06-28
IPC分类号： G01V3/30 , G01V3/38 , E21B47/026
摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to determine spatial orientations of one or more transmitters attached to a first downhole component, relative to one or more receivers attached to a second downhole component, at common points in time during rotation of the first and the second downhole components. The first downhole component may be variably, rotationally coupled to the second downhole component. Further activity may include transforming raw measurements of transmitter signals provided by the receiver(s) into calibrated measurements based on the spatial orientations at the common points in time. Additional apparatus, systems, and methods are described.
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公开(公告)号：US20150219741A1
公开(公告)日：2015-08-06
申请号：US14413628
申请日：2012-07-13
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。
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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
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.
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公开(公告)号：US09851428B2
公开(公告)日：2017-12-26
申请号：US14413628
申请日：2012-07-13
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.
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5.发明申请公开(公告)号：US20180106141A1
公开(公告)日：2018-04-19
申请号：US15533349
申请日：2016-05-13
CPC分类号： E21B47/0006 , E21B34/06 , E21B47/00 , G01B7/10 , G01N17/04 , G01V3/18 , G01V3/26 , G01V3/28 , G01V3/30 , G01V3/38
摘要： A method includes deploying an electromagnetic (EM) defect detection tool in a downhole environment having a plurality of tubular strings with different diameters. The method also includes receiving raw measurements collected by the EM defect detection tool. The method also includes deconvolving the raw measurements with another input to obtain deconvolved raw measurements. The method also includes using the deconvolved raw measurements to determine a defect in at least one of the plurality of tubular strings. The method also includes performing, by a device, an operation in response to the determined defect.
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公开(公告)号：US20150106016A1
公开(公告)日：2015-04-16
申请号：US14401044
申请日：2012-06-28
IPC分类号： G01V3/30
CPC分类号： G01V3/30 , E21B47/026 , G01V3/38
摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to determine spatial orientations of one or more transmitters attached to a first downhole component, relative to one or more receivers attached to a second downhole component, at common points in time during rotation of the first and the second downhole components. The first downhole component may be variably, rotationally coupled to the second downhole component. Further activity may include transforming raw measurements of transmitter signals provided by the receiver(s) into calibrated measurements based on the spatial orientations at the common points in time. Additional apparatus, systems, and methods are described.
摘要翻译： 在一些实施例中，装置和系统以及方法和物品可以相对于连接到第二井下部件的一个或多个接收器来确定附接到第一井下部件的一个或多个发射器的空间取向， 在第一和第二井下部件旋转期间的公共时间点。 第一井下部件可以可变地旋转地联接到第二井下部件。 进一步的活动可以包括基于在公共时间点的空间取向将由接收机提供的发射机信号的原始测量转换成校准的测量。 描述了附加装置，系统和方法。
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公开(公告)号：US11002876B2
公开(公告)日：2021-05-11
申请号：US14114742
申请日：2011-05-03
申请人： Luis Emilio San Martin , Dagang Wu
发明人： Luis Emilio San Martin , Dagang Wu
摘要： A system and method for determining formation parameters is provided. The system includes an induction logging tool having a plurality of transmitter coils. The induction logging tool further includes a plurality of receiver coils, each of the receiver coils being spaced apart from the transmitter coils by a predetermined distance and receiving a response signal from the formation. The system includes circuitry coupled to the induction logging tool, the circuitry determining voltages induced in the plurality of receiver coils by the response signal. The circuitry separates real or in-phase portions of the determined voltages from imaginary of ninety degrees out of phase portions of the determined voltages and determines formation parameters using imaginary portions of the measured voltages.
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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
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。
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公开(公告)号：US20150142320A1
公开(公告)日：2015-05-21
申请号：US14408774
申请日：2012-08-28
摘要： In some embodiments, an apparatus and a system, as well as a method and an article, may operate to receive electromagnetic measurement data characterizing a formation from at least one transmitter-receiver pair. Further activity includes transforming the electromagnetic measurement data into transformed measurement data by computing a wavelet transform over the electromagnetic measurement data to provide wavelet coefficients, removing the wavelet coefficients below a selected threshold to provide remaining coefficients, and synthesizing the transformed measurement data by computing a reverse wavelet transform over a combination of the remaining coefficients. Additional apparatus, systems, and methods are described.
摘要翻译： 在一些实施例中，设备和系统以及方法和物品可以操作以从至少一个发射机 - 接收机对接收表征地层的电磁测量数据。 进一步的活动包括通过计算电磁测量数据上的小波变换来将电磁测量数据变换成变换的测量数据，以提供小波系数，去除低于所选阈值的小波系数以提供剩余系数，以及通过计算反向来合成变换的测量数据 通过剩余系数的组合进行小波变换。 描述了附加装置，系统和方法。
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10.发明申请METHOD FOR ESTIMATING FORMATION PARAMETERS FROM IMAGINARY COMPONENTS OF MEASURED DATA 审中-公开用于从测量数据的图像组件估计形成参数的方法公开(公告)号：US20140067272A1
公开(公告)日：2014-03-06
申请号：US14114742
申请日：2011-05-03
申请人： Luis Emilio San Martin , Dagang Wu
发明人： Luis Emilio San Martin , Dagang Wu
摘要： A system and method for determining formation parameters is provided. The system includes an induction logging tool having a plurality of transmitter coils. The induction logging tool further includes a plurality of receiver coils, each of the receiver coils being spaced apart from the transmitter coils by a predetermined distance and receiving a response signal from the formation. The system includes circuitry coupled to the induction logging tool, the circuitry determining voltages induced in the plurality of receiver coils by the response signal. The circuitry separates real or in-phase portions of the determined voltages from imaginary of ninety degrees out of phase portions of the determined voltages and determines formation parameters using imaginary portions of the measured voltages.
摘要翻译： 提供了一种用于确定地层参数的系统和方法。 该系统包括具有多个发射器线圈的感应测井工具。 感应测井工具还包括多个接收器线圈，每个接收器线圈与发射器线圈间隔预定距离并接收来自地层的响应信号。 该系统包括耦合到感应测井工具的电路，电路通过响应信号确定在多个接收器线圈中感应的电压。 电路将确定电压的实部或同相部分与确定电压的相位部分的90度的虚数进行分离，并使用测量电压的虚部确定形成参数。
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