-
1.发明申请公开(公告)号：US20120209527A1
公开(公告)日：2012-08-16
申请号：US13212624
申请日：2011-08-18
申请人： Matthias Gorek , Gregory B. Itskovich , Alexandre N. Bespalov , Frank Daschner , Reinhard Knöchel , Assol Kavtorina
发明人： Matthias Gorek , Gregory B. Itskovich , Alexandre N. Bespalov , Frank Daschner , Reinhard Knöchel , Assol Kavtorina
CPC分类号： G01V3/24
摘要： Disclosed is a method of estimating a property of an earth formation penetrated by a borehole. The method includes conveying a carrier through the borehole and performing a plurality of electrical measurements on the formation using a sensor disposed at the carrier and having a plurality of electrodes disposed in a concentric arrangement wherein a standoff distance between the sensor and a wall of the borehole has an influence on each electrical measurement in the plurality of electrical measurements. The method further includes determining an impedance for each electrical measurement in the plurality of electrical measurements and inputting the determined impedances into an artificial neural network implemented by a processor. The artificial neural network outputs the property wherein the outputted property compensates for the influence of sensor standoff distance on each electrical measurement in the plurality of electrical measurements.
摘要翻译： 公开了一种估计由钻孔穿透的地层的性质的方法。 该方法包括通过钻孔传送载体并使用设置在载体处的传感器在地层上执行多个电测量并且具有以同心布置设置的多个电极，其中传感器与钻孔壁之间的间隔距离 对多个电测量中的每个电测量具有影响。 该方法还包括确定多个电测量中的每个电测量的阻抗，并将确定的阻抗输入到由处理器实现的人造神经网络中。 人造神经网络输出其中输出特性补偿传感器间隔距离对多个电测量中的每个电测量的影响的性质。
-
2.发明授权公开(公告)号：US08786288B2
公开(公告)日：2014-07-22
申请号：US13212624
申请日：2011-08-18
发明人： Matthias Gorek , Gregory B. Itskovich , Alexandre N. Bespalov , Frank Daschner , Reinhard Knöchel
CPC分类号： G01V3/24
摘要： Disclosed is a method of estimating a property of an earth formation penetrated by a borehole. The method includes conveying a carrier through the borehole and performing a plurality of electrical measurements on the formation using a sensor disposed at the carrier and having a plurality of electrodes disposed in a concentric arrangement wherein a standoff distance between the sensor and a wall of the borehole has an influence on each electrical measurement in the plurality of electrical measurements. The method further includes determining an impedance for each electrical measurement in the plurality of electrical measurements and inputting the determined impedances into an artificial neural network implemented by a processor. The artificial neural network outputs the property wherein the outputted property compensates for the influence of sensor standoff distance on each electrical measurement in the plurality of electrical measurements.
摘要翻译： 公开了一种估计由钻孔穿透的地层的性质的方法。 该方法包括通过钻孔传送载体并使用设置在载体处的传感器在地层上执行多个电测量并且具有以同心布置设置的多个电极，其中传感器与钻孔壁之间的间隔距离 对多个电测量中的每个电测量具有影响。 该方法还包括确定多个电测量中的每个电测量的阻抗，并将确定的阻抗输入到由处理器实现的人造神经网络中。 人造神经网络输出其中输出特性补偿传感器间隔距离对多个电测量中的每个电测量的影响的性质。
-
公开(公告)号：US08972193B2
公开(公告)日：2015-03-03
申请号：US13411814
申请日：2012-03-05
摘要： A method of estimating a parameter of a formation contacting a borehole with an instrument that includes a mandrel and a pad includes providing a measurement voltage to the pad; applying a biasing voltage to the mandrel while the measurement voltage is applied to the pad; measuring a received current during at least a portion of time the measurement voltage is provided; and estimating the parameter based on the received current.
摘要翻译： 估计接触井眼的地层与包括心轴和垫的仪器的参数的方法包括向所述垫提供测量电压; 当将测量电压施加到所述垫时，向所述心轴施加偏置电压; 在提供测量电压的至少一部分时间内测量接收电流; 并基于接收到的电流来估计该参数。
-
公开(公告)号：US20130024120A1
公开(公告)日：2013-01-24
申请号：US13411814
申请日：2012-03-05
IPC分类号： G01V3/38
摘要： A method of estimating a parameter of a formation contacting a borehole with an instrument that includes a mandrel and a pad includes providing a measurement voltage to the pad; applying a biasing voltage to the mandrel while the measurement voltage is applied to the pad; measuring a received current during at least a portion of time the measurement voltage is provided; and estimating the parameter based on the received current.
摘要翻译： 估计接触井眼的地层与包括心轴和垫的仪器的参数的方法包括向所述垫提供测量电压; 当将测量电压施加到所述垫时，向所述心轴施加偏置电压; 在提供测量电压的至少一部分时间内测量接收电流; 并基于接收到的电流来估计该参数。
-
5.发明授权公开(公告)号：US08115490B2
公开(公告)日：2012-02-14
申请号：US13046096
申请日：2011-03-11
CPC分类号： G01V3/24
摘要： A method of estimating a property of an earth formation penetrated by a borehole includes: disposing into the borehole a sensor having a plurality of return electrodes and at least one transmitter electrode disposed in a concentric arrangement; injecting a first current of a first frequency into the formation by applying an alternating current voltage between first selected ones of the plurality of return electrodes and the at least one transmitter electrode; injecting a second current of a second frequency into the formation by applying an alternating current voltage between second selected ones of the plurality of return electrodes and the at least one transmitter electrode; measuring effective impedance for each of the currents; and estimating the property using the measurements of the effective impedance for each of the currents; wherein the estimating compensates for an influence of standoff distances of the sensor on the measurements.
摘要翻译： 一种估计由钻孔渗透的地层的性质的方法包括：将具有多个返回电极的传感器和设置在同心布置中的至少一个发射器电极设置在钻孔中; 通过在所述多个返回电极中的第一选定电极和所述至少一个发射器电极之间施加交流电压，将第一频率的第一电流注入到所述地层中; 通过在所述多个返回电极中的第二选定电极和所述至少一个发射器电极之间施加交流电压将第二频率的第二电流注入所述地层; 测量每个电流的有效阻抗; 并且使用每个电流的有效阻抗的测量来估计该性质; 其中所述估计补偿所述传感器对所述测量的间隔距离的影响。
-
6.发明申请公开(公告)号：US20110156708A1
公开(公告)日：2011-06-30
申请号：US13046096
申请日：2011-03-11
IPC分类号： G01V3/02
CPC分类号： G01V3/24
摘要： Disclosed is a method of estimating a property of an earth formation penetrated by a borehole. The method includes: disposing into the borehole a sensor having a plurality of return electrodes and at least one transmitter electrode disposed in a concentric arrangement; injecting a first current of a first frequency into the formation by applying an alternating current voltage between first selected ones of the plurality of return electrodes and the at least one transmitter electrode; injecting a second current of a second frequency into the formation by applying an alternating current voltage between second selected ones of the plurality of return electrodes and the at least one transmitter electrode; measuring effective impedance for each of the currents; and estimating the property using the measurements of the effective impedance for each of the currents; wherein the estimating compensates for an influence of standoff distances of the sensor on the measurements
摘要翻译： 公开了一种估计由钻孔穿透的地层的性质的方法。 该方法包括：在钻孔中布置具有多个返回电极的传感器和以同心布置设置的至少一个发射器电极; 通过在所述多个返回电极中的第一选定电极和所述至少一个发射器电极之间施加交流电压，将第一频率的第一电流注入到所述地层中; 通过在所述多个返回电极中的第二选定电极和所述至少一个发射器电极之间施加交流电压将第二频率的第二电流注入所述地层; 测量每个电流的有效阻抗; 并且使用每个电流的有效阻抗的测量来估计该性质; 其中所述估计补偿所述传感器对所述测量的间隔距离的影响
-
7.发明授权公开(公告)号：US07928733B2
公开(公告)日：2011-04-19
申请号：US12178590
申请日：2008-07-23
CPC分类号： G01V3/24
摘要： A method of estimating standoff in a borehole through an earth formation, includes: disposing a sensor including a plurality of return electrodes and at least one transmitter electrode disposed in a concentric arrangement into the borehole; injecting current, I, into the formation by applying at least two frequencies of alternating current (AC) voltage between at least two of the electrodes; measuring impedance, Z, for each of the frequencies; and using a predetermined relationship between impedance, Z, and standoff, estimating the standoff. A system and a computer program product are provided.
摘要翻译： 一种通过地层估计钻孔中的间隙的方法，包括：将包括多个返回电极的传感器和至少一个以同心布置设置在所述钻孔中的发射器电极布置; 通过在至少两个电极之间施加至少两个交流电压（AC）电压来将电流I注入到地层中; 测量每个频率的阻抗Z; 并且使用阻抗Z和间隔之间的预定关系来估计间隔。 提供系统和计算机程序产品。
-
8.发明授权公开(公告)号：US09709692B2
公开(公告)日：2017-07-18
申请号：US12288171
申请日：2008-10-17
IPC分类号： G01V3/20
CPC分类号： G01V3/20
摘要： A logging tool for performing resistivity measurements on the sidewall of a borehole in an earth formation is provided with a circumferential series of evenly-spaced measurement electrodes providing complete circumferential coverage of resistivity measurements. In one embodiment, the measurement electrodes are carried on a conductive pad circumferentially surrounding an elongate mandrel or tubular. The conductive pad is held at a voltage adapted to focus measurement current into the sidewall of the borehole. Preferably, the pad has dimensions relative to the measurement electrodes and a standoff distance between the measurement electrodes and said borehole wall to effectively focus the measurement current into the borehole wall. In accordance with one aspect of the invention, the measurement electrodes are spaced apart by a distance that is less than the width of each measurement electrode, thereby ensuring full circumferential resolution.
-
公开(公告)号：US08390294B2
公开(公告)日：2013-03-05
申请号：US12423535
申请日：2009-04-14
IPC分类号： G01V3/00
CPC分类号： G01V3/24
摘要： An apparatus, method and computer-readable medium for obtaining a resistivity image of an earth formation. The apparatus includes a downhole assembly configured to be conveyed in a borehole penetrating the earth formation; a plurality of sensor electrodes on the downhole assembly, at least one of the electrodes having a different area than another of the electrodes; and at least one processor configured to: (i) process measurements using each of the sensor electrodes; (ii) process a subset of the measurements substantially unaffected by the different capacitances to produce an image of the borehole wall; and (iii) record the image on a suitable medium.
摘要翻译： 一种用于获得地层电阻率图像的装置，方法和计算机可读介质。 该装置包括井下组件，其构造成在穿过地层的钻孔中传送; 在井下组件上的多个传感器电极，至少一个电极具有与另一电极不同的面积; 以及至少一个处理器，其被配置为：（i）使用每个所述传感器电极处理测量; （ii）处理基本上不受不同电容影响的测量的子集，以产生井壁的图像; 和（iii）将图像记录在合适的介质上。
-
10.发明授权Method and apparatus for eliminating drill effect in pulse induction measurements 有权消除脉冲感应测量中钻头效应的方法和装置公开(公告)号：US08332152B2
公开(公告)日：2012-12-11
申请号：US12077338
申请日：2008-03-19
CPC分类号： G01V3/28
摘要： A method and apparatus provide a time-dependent calibration to essentially eliminate pipe effect in pulse-induction logging while drilling. Use of two receivers to provide calibration and measurement information allows determination of formation properties in a downhole environment while eliminating the effect of tool effects.
摘要翻译： 一种方法和装置提供时间依赖性校准，以在钻孔时基本上消除脉冲诱导测井中的管道效应。 使用两个接收器提供校准和测量信息可以在井下环境中确定地层特性，同时消除工具效应的影响。
-
-
-
-
-
-
-
-
-
搜索结果
78 条记录 (耗时 0.022 秒)
