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1. 发明申请

US20070236222A1 Method and Apparatus for Determining Formation Resistivity Ahead of the Bit and Azimuthal at the Bit 有权
标题翻译：用于确定位位置和方位角之前的形成电阻率的方法和装置
公开(公告)号：US20070236222A1
公开(公告)日：2007-10-11
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： G01V3/00
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。

2. 发明授权

US07554329B2 Method and apparatus for determining formation resistivity ahead of the bit and azimuthal at the bit 有权
标题翻译：用于确定钻头位置和方位角之前的地层电阻率的方法和装置
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。

3. 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。

4. 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。

5. 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。

6. 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。

7. 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。

8. 发明授权

US08049508B2 Method and apparatus for determining formation boundary near the bit for conductive mud 有权
标题翻译：用于确定导电泥浆钻头附近地层边界的方法和装置
公开(公告)号：US08049508B2
公开(公告)日：2011-11-01
申请号：US12179237
申请日：2008-07-24
申请人： Matthias Gorek
发明人： Matthias Gorek
IPC分类号： G01V3/20 , G01V3/26
CPC分类号： G01V3/28
摘要： A method and apparatus for determining a parameter of interest of an earth formation during drilling of a borehole. A first toroidal coil antenna induces a current along a path that includes a bottomhole assembly and the formation. A second toroidal coil antenna disposed at the drillbit and oriented at a non-zero angle to the longitudinal axis of the bottomhole assembly measures an electrical signal resulting from the current, the electrical signal being a parameter of interest of the formations.
摘要翻译：一种用于在钻孔期间确定地层的感兴趣参数的方法和装置。第一环形线圈天线沿着包括井底组件和地层的路径感应电流。设置在钻孔处并且与井底组件的纵向轴线成非零角度的第二环形线圈天线测量由电流产生的电信号，电信号是地层感兴趣的参数。

9. 发明申请

US20070216417A1 Apparatus and Method For Resistivity Measurements During Rotational Drilling 有权
标题翻译：旋转钻孔期间电阻率测量的装置和方法
公开(公告)号：US20070216417A1
公开(公告)日：2007-09-20
申请号：US11748846
申请日：2007-05-15
申请人： Rene Ritter , Matthias Gorek , Volker Krueger , Martin Evans
发明人： Rene Ritter , Matthias Gorek , Volker Krueger , Martin Evans
IPC分类号： G01V3/08
CPC分类号： G01V3/24 , G01V3/20 , G01V3/28 , G01V3/30
摘要： A resistivity sub including a resistivity sensor forms part of a bottom hole drilling assembly. The sensor is maintained at a substantially fixed offset from the wall of a borehole during drilling operations by, for example, a stabilizer. In WBM, galvanic sensors may be used, with or without commonly used focusing methods, for obtaining a resistivity image of the borehole wall. In OBM, capacitive coupling may be used. The apparatus is capable of using other types of sensors, such as induction, MPR, shielded dipole, quadrupole, and GPR sensors. It is emphasized that this abstract is provided to comply with the rules requiring an abstract which will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure. It is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b)
摘要翻译：包括电阻率传感器的电阻率子层构成井底钻井组件的一部分。在例如稳定器的钻井操作期间，传感器被保持在与钻孔壁基本上固定的偏移。在WBM中，可以使用电流传感器，具有或不具有常用的聚焦方法，以获得井壁的电阻率图像。在OBM中，可以使用电容耦合。该装置能够使用其他类型的传感器，例如感应，MPR，屏蔽偶极子，四极杆和GPR传感器。要强调的是，该摘要被提供以符合要求抽象的规则，这将允许搜索者或其他读者快速确定技术公开的主题。提交它的理解是，它不会用于解释或限制权利要求的范围或含义。 37 CFR 1.72（b）

10. 发明授权

US09075157B2 Bending correction for deep reading azimuthal propagation resistivity 有权
标题翻译：深度读数的弯曲校正方位传播电阻率
公开(公告)号：US09075157B2
公开(公告)日：2015-07-07
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 , E21B47/024 , E21B47/09
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。

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