公开(公告)号：US10241227B2

公开(公告)日：2019-03-26

申请号：US13458297

申请日：2012-04-27

申请人： Matthias Gorek

发明人： Matthias Gorek

IPC分类号： G01V3/30 ,  G01V3/28

摘要： An apparatus and method for a property ahead of a drill bit in a borehole penetrating a formation. The apparatus may include at least one receiver toroid disposed on a carrier and a transmitter toroid configured to induce an electromagnetic signal in the formation and disposed between the drill bit and the at least one receiver toroid. The apparatus may include at least one processor configured to estimate the property using a signal produced by the at least one receiver. The method may include estimating the property using the signal produced by the at least one receiver toroid. The method may also include one or more of: (i) generating a conductivity curve based on signals from at least one receiver toroid, (ii) validating signals from one receiver toroid based on a conductivity curve of another receiver toroid, and (iii) filtering a receiver toroid signal using lateral resistivity information.

公开(公告)号：US20130226459A1

公开(公告)日：2013-08-29

申请号：US13404535

申请日：2012-02-24

申请人： Matthias Gorek

发明人： Matthias Gorek

IPC分类号： G06F19/00 ,  G01V3/28

CPC分类号： G01V3/28 ,  E21B47/024 ,  E21B47/0905

摘要： An apparatus and method for estimating a parameter of interest in a borehole penetrating an earth formation using a receiver and a transmitter, both disposed on a carrier, with aligned magnetic moments to correct for bending of carrier during borehole investigations. The apparatus may include a transmitter with at least two substantially perpendicular coils and a receiver with at least one coil oriented with at least one or the transmitter coils. The method may include aligning the magnetic moment of the transmitter and the magnetic moment of the receiver prior to estimating the parameter of interest. The method may include supplying a constant electric current to one of the transmitter coils while supplying a varying electric current to another of the transmitter coils. The method may include estimating a direction of bending or angle of bending of the carrier.

摘要翻译： 一种装置和方法，用于使用接收器和发射器估计穿透地层的钻孔中的感兴趣的参数，两者都设置在载体上，具有对准的磁矩以校正钻孔调查期间载体的弯曲。 该装置可以包括具有至少两个基本上垂直的线圈的发射器和具有至少一个线圈的接收器，该线圈定向成至少一个或发射器线圈。 该方法可以包括在估计感兴趣的参数之前对准发射机的磁矩和接收机的磁矩。 该方法可以包括向发射器线圈之一提供恒定的电流，同时向另一个发射器线圈提供变化的电流。 该方法可以包括估计载体的弯曲方向或弯曲角度。

公开(公告)号：US08258790B2

公开(公告)日：2012-09-04

申请号：US12274414

申请日：2008-11-20

申请人： Martin Folberth ,  Matthias Gorek ,  Eduard Kirchmeier

发明人： Martin Folberth ,  Matthias Gorek ,  Eduard Kirchmeier

IPC分类号： G01V3/10

CPC分类号： G01V3/28

摘要： An apparatus for evaluating an earth formation, the apparatus including: a logging tool configured to be conveyed through a borehole penetrating the earth formation; a coil inductively coupled to the earth formation, the coil being disposed at the logging instrument; and a circuit coupled to the coil wherein the circuit and the coil form an oscillator circuit, the oscillator circuit being configured to oscillate when a circuit parameter of the oscillator circuit satisfies an oscillation criterion, the circuit parameter being related to a property of the earth formation.

摘要翻译： 一种用于评估地层的装置，所述装置包括：测井工具，其构造成通过穿过所述地层的钻孔传送; 感应地耦合到地层的线圈，线圈设置在测井仪器处; 以及耦合到所述线圈的电路，其中所述电路和所述线圈形成振荡器电路，所述振荡器电路被配置为当所述振荡器电路的电路参数满足振荡标准时振荡，所述电路参数与所述地层的性质相关 。

公开(公告)号：US08115490B2

公开(公告)日：2012-02-14

申请号：US13046096

申请日：2011-03-11

申请人： Matthias Gorek ,  Gregory B. Itskovich ,  Alexandre N. Bespalov

发明人： Matthias Gorek ,  Gregory B. Itskovich ,  Alexandre N. Bespalov

IPC分类号： G01V3/06 ,  G01V3/08 ,  G01V3/12

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。

公开(公告)号：US20100123461A1

公开(公告)日：2010-05-20

申请号：US12274414

申请日：2008-11-20

申请人： Martin Folberth ,  Matthias Gorek ,  Eduard Kirchmeier

发明人： Martin Folberth ,  Matthias Gorek ,  Eduard Kirchmeier

IPC分类号： G01V3/10 ,  G01V3/28

CPC分类号： G01V3/28

摘要： An apparatus for evaluating an earth formation, the apparatus including: a logging tool configured to be conveyed through a borehole penetrating the earth formation; a coil inductively coupled to the earth formation, the coil being disposed at the logging instrument; and a circuit coupled to the coil wherein the circuit and the coil form an oscillator circuit, the oscillator circuit being configured to oscillate when a circuit parameter of the oscillator circuit satisfies an oscillation criterion, the circuit parameter being related to a property of the earth formation.

摘要翻译： 一种用于评估地层的装置，所述装置包括：测井工具，其构造成通过穿过所述地层的钻孔传送; 感应地耦合到地层的线圈，线圈设置在测井仪器处; 以及耦合到所述线圈的电路，其中所述电路和所述线圈形成振荡器电路，所述振荡器电路被配置为当所述振荡器电路的电路参数满足振荡标准时振荡，所述电路参数与所述地层的性质相关 。

公开(公告)号：US07554329B2

公开(公告)日：2009-06-30

申请号：US11687470

申请日：2007-03-16

申请人： Matthias Gorek ,  Christian Fulda

发明人： Matthias Gorek ,  Christian Fulda

IPC分类号： G01V3/18 ,  G01V3/38 ,  E21B47/12

CPC分类号： G01V3/22 ,  E21B47/102

摘要： A method and apparatus for obtaining a resistivity measurement of an earth formation surrounding a borehole in an MWD device uses the drillbit and the adjacent portion of the drill collar as a focusing electrode for focusing the measure current from a measure electrode on the face or side of the drillbit. This provides the ability to see ahead of and azimuthally around the drillbit.

摘要翻译： 用于获得MWD装置中钻孔周围的地层的电阻率测量的方法和装置使用钻头和钻铤的相邻部分作为聚焦电极，用于将来自测量电极的测量电流聚焦在测量电极的表面或侧面上 钻头。 这提供了在钻头周围的前方和方位角的能力。

公开(公告)号：US20170139073A1

公开(公告)日：2017-05-18

申请号：US15349224

申请日：2016-11-11

申请人： Matthias Gorek ,  Martin Folberth ,  Eduard Kirchmeier

发明人： Matthias Gorek ,  Martin Folberth ,  Eduard Kirchmeier

IPC分类号： G01V3/28 ,  G01R15/16

CPC分类号： G01V3/28 ,  G01R15/165

摘要： A system for measuring electric characteristics of an earth formation includes a carrier configured to be disposed in an earth formation, and an inductive measurement assembly including an antenna configured to generate an oscillating magnetic field in the earth formation and measure a resistivity of the formation by detecting a signal in response to currents induced in the formation. The system also includes a capacitive measurement assembly including a capacitive measurement electrode configured to detect a signal in response to a measurement current injected into the formation, the capacitive measurement electrode disposed between the antenna and the formation and in a path of the magnetic field, the capacitive measurement electrode formed from a plurality of constituent electrodes that are electrically isolated from each other so as to prevent induction of eddy currents across the plurality of electrodes.

公开(公告)号：US08786288B2

公开(公告)日：2014-07-22

申请号：US13212624

申请日：2011-08-18

申请人： Matthias Gorek ,  Gregory B. Itskovich ,  Frank Daschner ,  Reinhard Knöchel ,  Assol Kavtorina

发明人： Matthias Gorek ,  Gregory B. Itskovich ,  Alexandre N. Bespalov ,  Frank Daschner ,  Reinhard Knöchel

IPC分类号： G01V3/24 ,  G06N3/02

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 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：US20130289880A1

公开(公告)日：2013-10-31

申请号：US13458297

申请日：2012-04-27

申请人： Matthias Gorek

发明人： Matthias Gorek

IPC分类号： G06F19/00 ,  G01V3/30

CPC分类号： G01V3/30 ,  G01V3/28

摘要： An apparatus and method for a property ahead of a drill bit in a borehole penetrating a formation. The apparatus may include at least one receiver toroid disposed on a carrier and a transmitter toroid configured to induce an electromagnetic signal in the formation and disposed between the drill bit and the at least one receiver toroid. The apparatus may include at least one processor configured to estimate the property using a signal produced by the at least one receiver. The method may include estimating the property using the signal produced by the at least one receiver toroid. The method may also include one or more of: (i) generating a conductivity curve based on signals from at least one receiver toroid, (ii) validating signals from one receiver toroid based on a conductivity curve of another receiver toroid, and (iii) filtering a receiver toroid signal using lateral resistivity information.

摘要翻译： 一种用于穿透地层的钻孔中的钻头之前的性能的装置和方法。 该装置可以包括布置在载体上的至少一个接收器环形圈和被配置为在地层中诱导电磁信号并且布置在钻头和至少一个接收器环形面之间的发射机环形线圈。 该装置可以包括至少一个处理器，其被配置为使用由至少一个接收器产生的信号来估计属性。 该方法可以包括使用由至少一个接收器环形线产生的信号来估计该属性。 该方法还可以包括以下中的一个或多个：（i）基于来自至少一个接收器环形的信号产生电导率曲线，（ii）基于另一个接收器环形线的电导率曲线来验证来自一个接收器环形的信号，以及（iii） 使用横向电阻率信息对接收机环形信号进行滤波。

公开(公告)号：US08390295B2

公开(公告)日：2013-03-05

申请号：US12171401

申请日：2008-07-11

申请人： Matthias Gorek ,  Martin Folberth ,  Christian Fulda

发明人： Matthias Gorek ,  Martin Folberth ,  Christian Fulda

IPC分类号： G01V3/00

CPC分类号： G01V3/20

摘要： A system for measuring a resistivity parameter of an earth formation includes: at least one measurement electrode electrically connected to a first electrical source; at least one guard electrode; a shielding electrode interposed between the at least one guard electrode and the at least one measurement electrode, the shielding electrode being electrically connected to a second electrical source independent from the first electrical source, and the guard electrode being electrically connected to a third electrical source independent of the first and second electrical sources; at least one return electrode; insulators positioned between (i) the measurement electrode and the shielding electrode, (ii) the shielding electrode and the guard electrode and (iii) the measurement electrode, the guard electrode and the return electrode; and a processor configured to adjust at least one of the first electrical source and the second electrical source to minimize a current flow through the shielding electrode.

摘要翻译： 用于测量地层电阻率参数的系统包括：电连接到第一电源的至少一个测量电极; 至少一个保护电极; 屏蔽电极，插在所述至少一个保护电极和所述至少一个测量电极之间，所述屏蔽电极电连接到独立于所述第一电源的第二电源，并且所述保护电极电连接到第三电源， 的第一和第二电源; 至少一个返回电极; 位于（i）测量电极和屏蔽电极之间的绝缘体，（ii）屏蔽电极和保护电极，以及（iii）测量电极，保护电极和返回电极; 以及处理器，其被配置为调节所述第一电源和所述第二电源中的至少一个，以最小化通过所述屏蔽电极的电流。