公开(公告)号：US06727827B1

公开(公告)日：2004-04-27

申请号：US09639210

申请日：2000-08-15

申请人： John E. Edwards ,  Brian Clark ,  John R. Lovell

发明人： John E. Edwards ,  Brian Clark ,  John R. Lovell

IPC分类号： G01V300

CPC分类号： E21B47/122

摘要： A system and method for enhancing the reception of electromagnetic (EM) waves in a fixed downhole receiver of an EM telemetry system is provided. In one embodiment, slots are formed in a portion of an outer casing and an EM receiver is positioned within the outer casing so as to be aligned with the slots formed therein. In another embodiment, an inductive coupling arrangement is provided to transfer signals from an EM receiver mounted on the outside surface of an outer casing to a wireline that is attached to the outer surface of an inner casing, which is disposed within the outer casing. In yet another embodiment, an insulated gap is formed in the surface of the outer casing. An EM receiver, mounted on the outer surface of the inner casing, is positioned above the insulated gap of the outer casing. An electrical coupling mechanism is further provided to electrically couple the inner and outer conductors at a point above the EM receiver.

摘要翻译： 提供了一种用于在EM遥测系统的固定井下接收机中增强电磁（EM）波接收的系统和方法。 在一个实施例中，槽形成在外壳的一部分中，并且EM接收器定位在外壳内，以便与其中形成的槽对准。 在另一个实施例中，提供感应耦合装置以将信号从安装在外壳的外表面上的EM接收器传送到连接到设置在外壳内的内壳的外表面的电缆。 在另一个实施例中，在外壳的表面中形成绝缘间隙。 安装在内壳的外表面上的EM接收器位于外壳的绝缘间隙的上方。 还提供电耦合机构以在EM接收器上方的点处电耦合内导体和外导体。

公开(公告)号：US06710601B2

公开(公告)日：2004-03-23

申请号：US10367475

申请日：2003-02-14

申请人： Richard A. Rosthal ,  Dean Homan ,  Thomas D. Barber ,  Stephen Bonner ,  Brian Clark ,  Dzevat Omeragic

发明人： Richard A. Rosthal ,  Dean Homan ,  Thomas D. Barber ,  Stephen Bonner ,  Brian Clark ,  Dzevat Omeragic

IPC分类号： G01V318

CPC分类号： G01V3/28

摘要： Methods and apparatus are disclosed for minimizing or eliminating an undesired axial electric current induced along a subsurface borehole in the process of subsurface measurements with transmitter and/or receiver antennas which are substantially time varying magnetic dipoles with their dipole moments aligned at an angle to the axis of the borehole. Some antennas are disposed within the borehole on instruments having a non-conductive support member. One instrument includes a conductive all-metal body with an antenna adapted for induction frequencies. Antenna shields adapted for controlled current flow are also provided with an all-metal instrument. Methods include providing an alternate path for the current along the instrument body. Another method includes emitting a controlled current to counter the undesired current. Another method corrects for the effect of the current using a superposition technique. An embodiment of the instrument includes an antenna disposed between a pair of electrically coupled electrodes. The antenna is disposed on the instrument such that it comprises a tilted or transverse magnetic dipole. Another embodiment of the instrument includes a non-conductive housing with a conductive segment disposed thereon. An antenna is disposed on the instrument about the conductive segment. Another embodiment includes an antenna disposed between two pairs of electrodes with a device to measure a voltage at the electrodes when electromagnetic energy is transmitted within the borehole. Yet another instrument includes an antenna disposed between a first pair of electrodes and a device to measure a voltage at the elecrodes when electromagnetic energy is transmitted within the borehole. This embodiment also includes a device to energize a second electrode pair in response to the voltage measured at the first electrode pair.

摘要翻译： 公开了用于在地下测量过程中沿着地下钻孔感应的不期望的轴向电流的发射机和/或接收机天线的最小化或消除的方法和装置，所述发射机和/或接收机天线是基本上时变的磁偶极，其偶极矩与轴成一定角度 的钻孔。 一些天线设置在具有非导电支撑构件的仪器上的钻孔内。 一种仪器包括具有适用于感应频率的天线的导电全金属体。 适用于受控电流流动的天线屏蔽还配有全金属仪器。 方法包括提供沿着仪器主体的电流的替代路径。 另一种方法包括发射受控电流以对抗不需要的电流。 另一种方法使用叠加技术来纠正当前的效果。 仪器的一个实施例包括设置在一对电耦合电极之间的天线。 天线设置在仪器上，使得其包括倾斜或横向磁偶极子。 仪器的另一实施例包括其上设置有导电段的非导电壳体。 天线设置在仪器周围导电段。 另一个实施例包括设置在两对电极之间的天线，当电磁能量在钻孔内传输时，该天线具有用于测量电极处的电压的装置。 另一种仪器包括设置在第一对电极之间的天线和当在井眼内传输电磁能量时测量电极处的电压的装置。 该实施例还包括响应于在第一电极对测量的电压而激励第二电极对的装置。

公开(公告)号：US06624634B2

公开(公告)日：2003-09-23

申请号：US10367398

申请日：2003-02-14

申请人： Richard A. Rosthal ,  Dean Homan ,  Thomas D. Barber ,  Stephen Bonner ,  Brian Clark ,  Dzevat Omeragic

发明人： Richard A. Rosthal ,  Dean Homan ,  Thomas D. Barber ,  Stephen Bonner ,  Brian Clark ,  Dzevat Omeragic

IPC分类号： G01V302

CPC分类号： G01V3/28

摘要： Methods and apparatus are disclosed for minimizing or eliminating an undesired axial electric current induced along a subsurface borehole in the process of subsurface measurements with transmitter and/or receiver antennas which are substantially time varying magnetic dipoles with their dipole moments aligned at an angle to the axis of the borehole. Some antennas are disposed within the borehole on instruments having a non-conductive support member. One instrument includes a conductive all-metal body with an antenna adapted for induction frequencies. Antenna shields adapted for controlled current flow are also provided with an all-metal instrument. Methods include providing an alternate path for the current along the instrument body. Another method includes emitting a controlled current to counter the undesired current. Another method corrects for the effect of the current using a superposition technique. An embodiment of the instrument includes an antenna disposed between a pair of electrically coupled electrodes. The antenna is disposed on the instrument such that it comprises a tilted or transverse magnetic dipole. Another embodiment of the instrument includes a non-conductive housing with a conductive segment disposed thereon. An antenna is disposed on the instrument about the conductive segment. Another embodiment includes an antenna disposed between two pairs of electrodes with a device measure a voltage at the electrodes when electromagnetic energy is transmitted within the borehole. Yet another instrument includes an antenna disposed between a first pair of electrodes and a device to measure a voltage at the elecrodes when electromagnetic energy is transmitted within the borehole. This embodiment also includes a device to energize a second electrode pair in response to the voltage measured at the first electrode pair.

摘要翻译： 公开了用于在地下测量过程中沿着地下钻孔感应的不期望的轴向电流的发射机和/或接收机天线的最小化或消除的方法和装置，所述发射机和/或接收机天线是基本上时变的磁偶极，其偶极矩与轴成一定角度 的钻孔。 一些天线设置在具有非导电支撑构件的仪器上的钻孔内。 一种仪器包括具有适用于感应频率的天线的导电全金属体。 适用于受控电流流动的天线屏蔽还配有全金属仪器。 方法包括提供沿着仪器主体的电流的替代路径。 另一种方法包括发射受控电流以对抗不需要的电流。 另一种方法使用叠加技术来纠正当前的效果。 仪器的实施例包括设置在一对电耦合电极之间的天线。 天线设置在仪器上，使得其包括倾斜或横向磁偶极子。 仪器的另一实施例包括其上设置有导电段的非导电壳体。 天线设置在仪器周围导电段。 另一个实施例包括设置在两对电极之间的天线，当在钻孔内传输电磁能时，器件测量电极处的电压。 另一种仪器包括设置在第一对电极之间的天线和当在井眼内传输电磁能量时测量电极处的电压的装置。 该实施例还包括响应于在第一电极对测量的电压而激励第二电极对的装置。

公开(公告)号：US06557794B2

公开(公告)日：2003-05-06

申请号：US09932251

申请日：2001-08-17

申请人： Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Brian Clark ,  Scott S. Chesser ,  Thomas D. Barber

发明人： Richard A. Rosthal ,  Dean M. Homan ,  Dzevat Omeragic ,  Stephen D. Bonner ,  Brian Clark ,  Scott S. Chesser ,  Thomas D. Barber

IPC分类号： B65H3916

CPC分类号： G01V3/28

摘要： A shield apparatus for use in conjunction with a well tool to selectively attenuate one or more electromagnetic energy field components as the components interact with the shield. The shield composed of a flexible strip or conductive body and comprising at least one sloped slot or sloped conductive element therein. The shield being adapted to surround an antenna mounted on a well tool. A method for rotating the axis of the magnetic dipole of a transmitter or receiver coil. A method for winding and shielding an electric coil such that the resultant coil emits or receives selected electromagnetic energy field components.

公开(公告)号：US06322563B1

公开(公告)日：2001-11-27

申请号：US09397832

申请日：1999-09-17

申请人： Joel W. Cummings ,  Roland Deangelis ,  Brian Clark ,  David Schiff ,  Paul Mulhauser ,  Jesse Gala

发明人： Joel W. Cummings ,  Roland Deangelis ,  Brian Clark ,  David Schiff ,  Paul Mulhauser ,  Jesse Gala

IPC分类号： A61B1784

CPC分类号： A61B17/064 ,  A61B17/068 ,  A61B2017/0646 ,  A61B2017/0647

摘要： The present invention relates to new surgical fasteners and methods of using the surgical fasteners. The surgical fasteners of the invention are in the form of tacks and comprise generally an elongate rod, a sharp conical head, a tail, and a transverse locking member extending from the tail above the plane of the rod. The fasteners are inserted into a bodily cavity for tissue and membrane fixation and approximation by the use of tack applicators. The tack applicators of the invention generally comprise an elongate handle, a loading tip and a carrier assembly that is removably inserted into the loading tip. The tacks are inserted and locked into the carrier assembly from which they may be disengaged.

摘要翻译： 本发明涉及新的外科紧固件和使用外科紧固件的方法。 本发明的手术紧固件是钉子的形式，并且通常包括细长的杆，尖锐的锥形头部，尾部和横向锁定构件，其从尾部在杆的平面上方延伸。 将紧固件插入体腔中，用于组织和膜固定，并通过使用粘性涂抹器进行近似。 本发明的粘性涂抹器通常包括细长手柄，装载尖端和可移除地插入到装载尖端中的托架组件。 钉子被插入并锁定到托架组件中，从该组件中它们可以从它们脱离。

公开(公告)号：US5235285A

公开(公告)日：1993-08-10

申请号：US786137

申请日：1991-10-31

申请人： Brian Clark ,  Stephen D. Bonner ,  Jacques Jundt ,  Martin Luling

发明人： Brian Clark ,  Stephen D. Bonner ,  Jacques Jundt ,  Martin Luling

IPC分类号： G01V3/20

CPC分类号： E21B47/01 ,  E21B17/1078 ,  G01V3/20

摘要： Apparatus is disclosed for determining the resistivity of formations surrounding an earth borehole. An electrically conductive metal body, such as a drill collar on a drill string, is movable through the borehole. A transmitting toroidal coil antenna is disposed on the body and is energized to induce a current which travels in a path that includes the body and the formations. An electrode is disposed on the body, and an electrical signal resulting from said current is measured at the electrode to obtain an indication of the resistivity of the formations. In a disclosed embodiment, one or more electrodes can be mounted on a blade that is mechanically coupled to the body.

摘要翻译： 公开了用于确定围绕地球钻孔的地层的电阻率的装置。 导电金属体，例如钻柱上的钻铤，可通过钻孔移动。 发射环形线圈天线设置在主体上并通电以引起在包括主体和地层的路径中行进的电流。 电极设置在主体上，并且在电极处测量由所述电流产生的电信号，以获得地层电阻率的指示。 在公开的实施例中，一个或多个电极可以安装在机械地联接到主体的叶片上。

公开(公告)号：US4857852A

公开(公告)日：1989-08-15

申请号：US186986

申请日：1988-04-27

申请人： Robert L. Kleinberg ,  Brian Clark ,  Weng C. Chew ,  David Mariani

发明人： Robert L. Kleinberg ,  Brian Clark ,  Weng C. Chew ,  David Mariani

IPC分类号： G01V3/28

CPC分类号： G01V3/28

摘要： A well logging apparatus is disclosed which employs slot antennas having a plurality of conductive probes traversing the slot. Also disclosed are a logging apparatus having electrically isolated antenna probes and a logging apparatus with an improved means for generating and applying a reference signal used in phase detection.

摘要翻译： 公开了一种测井装置，其使用具有穿过狭槽的多个导电探针的缝隙天线。 还公开了具有电隔离天线探针和测井装置的测井装置，其具有用于产生和施加用于相位检测的参考信号的改进装置。

公开(公告)号：US4739272A

公开(公告)日：1988-04-19

申请号：US616326

申请日：1984-05-31

申请人： Douglas D. Griffin ,  Weng C. Chew ,  Brian Clark ,  Robert L. Kleinberg

发明人： Douglas D. Griffin ,  Weng C. Chew ,  Brian Clark ,  Robert L. Kleinberg

IPC分类号： G01V3/28 ,  H01F15/04 ,  H01Q1/52 ,  H01Q7/04

CPC分类号： G01V3/28

摘要： A wall-engaging apparatus for microinductively investigating a characteristic of an earth formation traversed by a borehole comprises an antenna set mounted in an longitudinally elongated body adapted for a sliding engagement with the wall of the borehole. The antenna set includes a transmitter antenna mounted in the body for coupling electromagnetic energy into a formation; a receiver antenna for sensing a signal indicative of the characteristic; and at least one electroquasistatic shield element mounted coaxially with the magnetic dipole axis of the transmitter antenna. The electroquasistatic shield element comprises a sheet of conductive, non-magnetic material having a conductive center; a first annular band of narrow ray-like conductive segments, each of the conductive segments thereof integrally extending radially from the conductive center and being spaced from adjacent conductive segments by respective narrow radially-extending spaces originating in and traversing the first annular band; and preferably but not necessarily a second annular band of ray-like conductive segments, the conductive segments thereof integrally extending radially in pairs from a respective one of the conductive segment of the first annual band, and being spaced from adjacent pairs of conductive strips of the second annual band by respective longitudinal spaces originating in the first annular band and from one another by a narrow radially-extending space originating in and traversing the second annular band.

摘要翻译： 用于微观地研究由钻孔穿过的地层的特征的壁接合装置包括安装在适于与钻孔的壁滑动接合的纵向细长的主体中的天线组。 天线组包括安装在主体中的发射器天线，用于将电磁能耦合到地层中; 用于感测指示特征的信号的接收机天线; 以及与发射器天线的磁偶极轴同轴安装的至少一个电积屏蔽元件。 电气静电屏蔽元件包括具有导电中心的导电非磁性材料片; 窄的射线状导电段的第一环形带，每个导电段从导电中心径向整体延伸，并由相应的狭窄的径向延伸的空间与相邻的导电段间隔开，并且穿过第一环形带; 并且优选地但不一定是第二环形带状的射线状导电段，其导电段从第一年龄段的导电区段中相应的一个成对地成对延伸并且与第一年龄段的相邻的导电条带成对延伸 第二年度带由相应的纵向空间起始于第一环形带，并且彼此由狭窄的径向延伸的空间起源于并穿过第二环形带。

公开(公告)号：US4689572A

公开(公告)日：1987-08-25

申请号：US687071

申请日：1984-12-28

申请人： Brian Clark

发明人： Brian Clark

IPC分类号： G01V3/30 ,  G01V3/10 ,  G01V3/18 ,  H01Q13/10

CPC分类号： G01V3/30

摘要： An electromagnetic logging apparatus is disclosed which employs dielectric-filled slot antennas, in conjunction with tuning elements, to obtain improved operation. The apparatus can be used to measure the dielectric constant of formations surrounding a borehole.

摘要翻译： 公开了一种采用电介质填充的缝隙天线结合调谐元件来获得改进的操作的电磁测井装置。 该装置可用于测量井眼周围地层的介电常数。

公开(公告)号：US4659992A

公开(公告)日：1987-04-21

申请号：US782768

申请日：1985-11-04

申请人： Brian Clark ,  Gerald S. Huchital

发明人： Brian Clark ,  Gerald S. Huchital

IPC分类号： G01V3/30

CPC分类号： G01V3/30

摘要： The disclosure is directed to an improved method and apparatus for subsurface electromagnetic logging in a borehole wherein means are provided to detect transverse magnetic mode components and to either correct for these spurious components in the processing of the received signals or to generate suitable cancelling signals.

摘要翻译： 本发明涉及一种用于钻孔中的地下电磁测井的改进的方法和装置，其中提供了用于检测横向磁模式分量并且在处理接收到的信号时对这些杂散分量进行校正或者产生适当的抵消信号的装置。