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1. 发明授权

US08258790B2 Oscillator sensor for determining a property of an earth formation 有权
标题翻译：用于确定地层性质的振荡器传感器
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。

2. 发明申请

US20100123461A1 OSCILLATOR SENSOR FOR DETERMINING A PROPERTY OF AN EARTH FORMATION 有权
标题翻译：振荡器传感器，用于确定地球物质的形成
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。

3. 发明申请

US20170139073A1 RESISTIVITY IMAGING USING COMBINATION CAPACITIVE AND INDUCTIVE SENSORS 审中-公开
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.

4. 发明授权

US08390295B2 Method and apparatus for focusing in resistivity measurement tools using independent electrical sources 有权
标题翻译：用于使用独立电源聚焦在电阻率测量工具中的方法和装置
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。

5. 发明申请

US20100007349A1 METHOD AND APPARATUS FOR FOCUSING IN RESISTIVITY MEASUREMENT TOOLS USING INDEPENDENT ELECTRICAL SOURCES 有权
标题翻译：使用独立电源将电阻测量工具聚焦的方法和装置
公开(公告)号：US20100007349A1
公开(公告)日：2010-01-14
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： G01V3/02
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; 所述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。

6. 发明授权

US07256582B2 Method and apparatus for improved current focusing in galvanic resistivity measurement tools for wireline and measurement-while-drilling applications 有权
标题翻译：用于电缆电阻率测量工具的电流聚焦方法和装置，用于电缆和测量同时钻孔应用
公开(公告)号：US07256582B2
公开(公告)日：2007-08-14
申请号：US11110620
申请日：2005-04-20
申请人： Matthias Gorek , Martin Folberth , Christian Fulda
发明人： Matthias Gorek , Martin Folberth , Christian Fulda
IPC分类号： G01V3/02 , G01V3/18
CPC分类号： G01V3/20
摘要： A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The potential difference between the measurement electrodes and the guard electrodes is controlled to minimize current flow between the measurement electrodes and the shielding electrodes. This provides improved focusing and avoids effects of contact impedance.
摘要翻译：具有一个或多个测量电极和保护电极以及一个或多个屏蔽电极的电流电阻率工具。控制测量电极和保护电极之间的电位差使得测量电极和屏蔽电极之间的电流最小化。这提供了改进的聚焦并避免了接触阻抗的影响。

7. 发明申请

US20060238202A1 Method and apparatus for improved current focusing in galvanic resistivity measurment tools for wireline and measurement-while-drilling applications 有权
标题翻译：用于电缆电阻测量工具中改进电流聚焦的方法和装置，用于电缆和测量同时钻孔应用
公开(公告)号：US20060238202A1
公开(公告)日：2006-10-26
申请号：US11110620
申请日：2005-04-20
申请人： Matthias Gorek , Martin Folberth , Christian Fulda
发明人： Matthias Gorek , Martin Folberth , Christian Fulda
IPC分类号： G01V3/02 , G01V3/06 , G01V3/18
CPC分类号： G01V3/20
摘要： A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The potential difference between the measurement electrodes and the guard electrodes is controlled to minimize current flow between the measurement electrodes and the shielding electrodes. This provides improved focusing and avoids effects of contact impedance.
摘要翻译：具有一个或多个测量电极和保护电极以及一个或多个屏蔽电极的电流电阻率工具。控制测量电极和保护电极之间的电位差使得测量电极和屏蔽电极之间的电流最小化。这提供了改进的聚焦并避免了接触阻抗的影响。

8. 发明申请

US20060214664A1 OBM sensor with a loop antenna 审中-公开
标题翻译： OBM传感器带环形天线
公开(公告)号：US20060214664A1
公开(公告)日：2006-09-28
申请号：US11088443
申请日：2005-03-24
申请人： Martin Folberth , Christian Fulda , Matthias Gorek
发明人： Martin Folberth , Christian Fulda , Matthias Gorek
IPC分类号： G01V3/08
CPC分类号： G01V3/30
摘要： A method and apparatus for downhole resistivity imaging uses an antenna coupled to a power source through a directional coupler. Measured reflectivity values are indicative of the antenna impedance and the formation resistivity, particularly if some compensation is made for the antenna inductance.
摘要翻译：用于井下电阻率成像的方法和装置使用通过定向耦合器耦合到电源的天线。测量的反射率值表示天线阻抗和地层电阻率，特别是如果对天线电感进行了一些补偿。

9. 发明授权

US07679368B2 Reflection coefficient measurement for water-based mud resistivity imaging 失效
标题翻译：水泥浆电阻率成像的反射系数测量
公开(公告)号：US07679368B2
公开(公告)日：2010-03-16
申请号：US11496158
申请日：2006-07-31
申请人： Martin Folberth
发明人： Martin Folberth
IPC分类号： G01V3/18 , G01V3/20 , G01V3/02
CPC分类号： G01V3/24 , Y02A90/342
摘要： A galvanic resistivity tool with one or more measurement electrodes and guard electrodes, and one or more shielding electrodes. The impedance seen by the measurement electrode (indicative of the formation resistivity) is determined by using a directional coupler that measures a reflection coefficient of an electrical signal.
摘要翻译：具有一个或多个测量电极和保护电极以及一个或多个屏蔽电极的电流电阻率工具。通过使用测量电信号的反射系数的定向耦合器来确定由测量电极看到的阻抗（表示地层电阻率）。

10. 发明申请

US20110248716A1 CURRENT MEASUREMENT FOR WATER-BASED MUD GALVANIC ELECTRICAL IMAGING AND LATEROLOG TOOLS 审中-公开
标题翻译：基于水的泥UD电气成像和流变工具的电流测量
公开(公告)号：US20110248716A1
公开(公告)日：2011-10-13
申请号：US13080242
申请日：2011-04-05
申请人： Martin Folberth
发明人： Martin Folberth
IPC分类号： G01V3/18
CPC分类号： G01V3/24 , Y02A90/342
摘要： An apparatus and method for estimating a resistivity property of an earth formation involving electric current injected into a wall of a borehole. The apparatus includes a first electrode, a second electrode, and a differential amplifier. The first electrode may be configured to impart an electric current into a borehole wall and be directly connected to a first input of the differential amplifier. The second electrode may be directly connected to a second input of the differential amplifier. The method may also include a summing circuit connected to the output of the differential amplifier. The method includes estimating a resistivity property using the output of the differential amplifier or the summing circuit.
摘要翻译：一种用于估计涉及注入井眼壁的电流的地层的电阻特性的装置和方法。该装置包括第一电极，第二电极和差分放大器。第一电极可以被配置为将电流施加到井壁中并且直接连接到差分放大器的第一输入端。第二电极可以直接连接到差分放大器的第二输入端。该方法还可以包括连接到差分放大器的输出的求和电路。该方法包括使用差分放大器或求和电路的输出来估计电阻率特性。

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