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51. 发明授权

US5188191A Shock isolation sub for use with downhole explosive actuated tools 失效
标题翻译：与井下爆炸致动工具一起使用的冲击隔离子
公开(公告)号：US5188191A
公开(公告)日：1993-02-23
申请号：US803881
申请日：1991-12-09
申请人： Martin L. Tomek
发明人： Martin L. Tomek
IPC分类号： E21B17/07 , E21B47/01 , F16F1/40
CPC分类号： E21B47/011 , E21B17/07 , F16F1/40
摘要： The present disclosure is directed to a shock absorbing device for threading in a tubing string for running delicate instruments into a well borehole where they are in near proximity to explosives which might otherwise be detonate. This particularly is important in a well borehole which is filled with a standing column of liquid which transmits the shock waves quite readily. This is a separate assembly which can be threaded in the tubing string and has a pin and box connection for that. Moreover, it is formed of an outer mandrel surrounding connected inner upper and inner lower mandrels; the inner mandrels define annular spaces for receiving shock absorbers defined by alternating thin layers of metal and rubber; the metal and rubber washers have different shock wave impedances and tend therefore to absorb shock waves traveling either upwardly or downwardly in the well borehole.
摘要翻译：本公开涉及一种用于在管柱中穿线以用于将精密仪器运送到井眼中的冲击吸收装置，在井眼中它们可能接近可能引爆的爆炸物。这在井眼中特别重要，该钻井充满了立柱，液体的立柱很容易传递冲击波。这是一个单独的组件，其可以在管柱中螺纹连接，并且具有用于其的销和盒连接。此外，它由围绕连接的内上内心轴和内下心轴的外心轴形成; 内心轴定义用于接收由交替的金属和橡胶薄层限定的减震器的环形空间; 金属和橡胶垫圈具有不同的冲击波阻抗，并且倾向于吸收在井眼中向上或向下行进的冲击波。

52. 发明授权

US5187661A Method of determining invaded formation properties including resistivity dielectric constant and zone diameter 失效
标题翻译：确定侵入地层特性的方法，包括电阻率介电常数和区域直径
公开(公告)号：US5187661A
公开(公告)日：1993-02-16
申请号：US382591
申请日：1989-07-21
申请人： Paul I. Sinclair
发明人： Paul I. Sinclair
IPC分类号： G01V3/30
CPC分类号： G01V3/30
摘要： An apparatus and method for induction logging is disclosed. By transmitting a sequence of pulses at many frequencies, the formation invaded zone diameter can be distinguished as a result of changes in resistivity. As higher frequencies are swept, dielectric constant varies with frequency and this variation is evident in chart form. An apparatus for controlled antenna field formation is also disclosed.
摘要翻译：公开了一种用于感应测井的装置和方法。通过以许多频率发送脉冲序列，可以区分形成侵入区直径作为电阻率变化的结果。随着较高的频率被扫描，介电常数随频率而变化，并且这种变化在图表中是明显的。还公开了一种用于受控天线场形成的装置。

53. 发明授权

US5162740A Electrode array construction featuring current emitting electrodes and resistive sheet guard electrode for investigating formations along a borehole 失效
标题翻译：电极阵列结构特征电流发射电极和电阻板电极用于在井眼中进行调查
公开(公告)号：US5162740A
公开(公告)日：1992-11-10
申请号：US713476
申请日：1991-06-11
申请人： Andrew D. Jewell
发明人： Andrew D. Jewell
IPC分类号： G01V3/20
CPC分类号： G01V3/20
摘要： An electrode for use in the electrical investigation of a medium such as a borehole wall, comprises a sheet (32) of electrically resistive material having opposed first (34) and second (33) surfaces, one or more elongate electrical conductors (35,36) of low resistivity, an end face of each conductor abutting the first surface of the sheet (32) and means for sensing electric current passing through each conductor. In use, the second surface (33) of the sheet (32) is exposed to the medium to be investigated.
摘要翻译：用于诸如钻孔壁的介质的电气研究中的电极包括具有相对的第一（34）和第二（33）表面的电阻材料的片（32），一个或多个细长电导体（35,36 ），每个导体的端面邻接片材（32）的第一表面，以及用于感测通过每个导体的电流的装置。在使用中，片材（32）的第二表面（33）暴露于待研究的介质。

54. 发明授权

US5146167A Method and apparatus for determining the conductivity of subsurface earth formations by filtering and summing in-phase and quadrature conductivity signals with correction values 失效
标题翻译：通过对具有校正值的同相和正交电导率信号进行滤波和求和来确定地下地层的电导率的方法和装置
公开(公告)号：US5146167A
公开(公告)日：1992-09-08
申请号：US708142
申请日：1991-05-30
申请人： Robert W. Strickland , Paul L. Sinclair
发明人： Robert W. Strickland , Paul L. Sinclair
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： An improved induction well logging processing technique for determining conductivity measurements of subsurface earth strata. An in-phase conductivity signal and a quadrature conductivity signal are obtained from a downhole induction logging tool. The in-phase conductivity signal and the cubed square root of the in-phase conductivity signal are filtered by a first filter and a second filter, respectively. The outputs of the filters may be summed to provide a first conductivity signal having reduced environmental effects and indicating the conductivity of the earth formation under test. Additionally, the in-phase conductivity signal and the quadrature signal may be filtered and summed to provide a second conductivity signal. A weighted average of the first and second conductivity signals may be used as an indication of the earth formation conductivity.
摘要翻译：一种用于确定地下地层电导率测量的改进的感应测井处理技术。从井下感应测井仪获得同相电导率信号和正交电导率信号。同相电导率信号和同相电导率信号的立方平方根分别由第一滤波器和第二滤波器滤波。滤波器的输出可以相加以提供具有降低的环境影响并指示被测地球形成电导率的第一电导率信号。另外，可以对同相电导率信号和正交信号进行滤波和求和以提供第二导电信号。第一和第二导电信号的加权平均值可以用作地球导电性的指示。

55. 发明授权

US5132903A Dielectric measuring apparatus for determining oil and water mixtures in a well borehole 失效
标题翻译：用于确定井眼中油和水混合物的电介质测量装置
公开(公告)号：US5132903A
公开(公告)日：1992-07-21
申请号：US540059
申请日：1990-06-19
申请人： Paul L. Sinclair
发明人： Paul L. Sinclair
IPC分类号： E21B47/10 , E21B49/08 , G01N22/00
CPC分类号： G01N22/00 , E21B47/10 , E21B47/102 , E21B49/08
摘要： A method and apparatus for measuring a mixture of oil and water in a well borehole is set forth. The measurement is a measurement of mixture dielectric constant obtained by exposing a pair of windows to the mixture of well borehole liquids. Each window is formed in coaxial cable portions having cuts in the respective surrounding ground sheaths thereof wherein the sheaths are positioned so that the windows are adjacent and parallel. The two windows form a gap which may be approximately three times wider than the windows formed in the sheath. A signal generator drives the system at a specified voltage and frequency, and changes in signal coupled between the cables are measured where the changes derive from changes in the dielectric constant of the mixture of oil and water coupled in the circuit.

56. 发明授权

US5092056A Reversed leaf spring energizing system for wellbore caliper arms 失效
标题翻译：井眼卡钳臂的反向叶片弹簧激励系统
公开(公告)号：US5092056A
公开(公告)日：1992-03-03
申请号：US404546
申请日：1989-09-08
申请人： John G. Deaton
发明人： John G. Deaton
IPC分类号： E21B47/08 , G01B5/12
CPC分类号： G01B5/12 , E21B47/08
摘要： A caliper tool mechanism is set forth. In the preferred and illustrated embodiment, a pair of opposing caliper arms are pivotally mounted on a elongate body and are recessed in elongate slots in said body. The caliper arms are retracted to a parallel position. The arms extend parallel to the elongate body and cover an elongate leaf spring. The spring has a fastened lower end affixed to the lower end of the body, and upper ends joined through moveable lengths to said caliper arms.
摘要翻译：阐述了卡钳工具机制。在优选和示出的实施例中，一对相对的卡钳臂可枢转地安装在细长主体上并且凹入到所述主体中的细长槽中。卡钳臂缩回到平行位置。臂平行于细长主体延伸并覆盖细长的板簧。弹簧具有固定在主体下端的紧固下端，并且上端通过可移动长度连接到所述卡钳臂。

57. 发明授权

US5065099A Coil array for a high resolution induction logging tool and method of logging an earth formation 失效
标题翻译：用于高分辨率感应测井工具的线圈阵列和测井地层的方法
公开(公告)号：US5065099A
公开(公告)日：1991-11-12
申请号：US604542
申请日：1990-10-29
申请人： Paul L. Sinclair , Robert W. Strickland
发明人： Paul L. Sinclair , Robert W. Strickland
IPC分类号： G01V3/28
CPC分类号： G01V3/28
摘要： An induction tool including a coil array having a plurality of transmitter coils and a plurality of receiver coils. Each plurality of coils is symmetrically arranged on an insulated mandrel about a selected point. The induction tool also includes an oscillator circuit that provides an alternating frequency signal to the transmitter coils. A receiver circuit is connected to the receiver coils to measure signals indicative of the voltages induced on these receiver coils to the surface. By varying the spacing between the receiver coils and transmitter coils it is possible to independently vary the vertical and radial measurement capabilities of the tool of the present invention. A dual induction tool having high vertical resolution is also disclosed. The dual induction tool includes a pair of transmitter/receiver coil arrays, each transmitter/receiver coil array having a different transmitter-to-receiver coil spacing and substantially indentical vertical resolution. A single receiver coil is located at a selected point on an insulated sonde and a pair of variable symmetrically disposed bucking coils are located on either side of the receiver coil. Two pairs of identical transmitter coils are similarly symmetrically disposed on either side of the receiver coil. In a preferred embodiment, each pair of transmitter coils is alternately energized and the bucking coils are selectively adjusted to compensate for the variation in transmitter-to-receiver coil spacing.
摘要翻译：一种感应工具，包括具有多个发射器线圈和多个接收线圈的线圈阵列。每个多个线圈围绕选定点对称地布置在绝缘心轴上。感应工具还包括向发射器线圈提供交流频率信号的振荡器电路。接收器电路连接到接收器线圈以测量表示在这些接收器线圈上感应到表面的电压的信号。通过改变接收器线圈和发射器线圈之间的间隔，可以独立地改变本发明的工具的垂直和径向测量能力。还公开了具有高垂直分辨率的双感应工具。双感应工具包括一对发射器/接收器线圈阵列，每个发射器/接收器线圈阵列具有不同的发射器到接收器线圈间隔和基本上不连续的垂直分辨率。单个接收器线圈位于绝缘探头上的选定点处，并且一对可变对称布置的降压线圈位于接收器线圈的任一侧。两对相同的发射器线圈类似地对称地设置在接收器线圈的任一侧上。在优选实施例中，每对发射器线圈交替地被激励，并且选择性地调节降压线圈以补偿发射器到接收器线圈间隔的变化。

58. 发明授权

US5055675A Pulse height analyzer for spectroscopy thermal multigate decay well logging system 失效
标题翻译：用于光谱热量多功能衰减测井系统的脉冲高度分析仪
公开(公告)号：US5055675A
公开(公告)日：1991-10-08
申请号：US535614
申请日：1990-06-08
申请人： James R. Bridges
发明人： James R. Bridges
IPC分类号： E21B47/12 , G01V5/04
CPC分类号： E21B47/12 , G01V5/045
摘要： A pulse height analyzer for spectrocopy thermal multigate decay well logging systems is disclosed and has an input section comprising a peak time determining circuit locating a peak occurrence. The peak is determined relative to a threshold voltage determining circuit. On peak detection, a timing signal is formed for a control circuit. This operates a sample and hold switch at the output of an amplifier for the input. This switch inputs to an A/D converter driving a buffer. Various handshake signals cooperate with a telemetry system to transfer the peak time A/D valve for pulse height measurement.
摘要翻译：公开了一种用于光谱热测量衰减测井系统的脉冲高度分析仪，并具有包括定位峰值出现的峰值时间确定电路的输入部分。相对于阈值电压确定电路确定峰值。在峰值检测时，为控制电路形成定时信号。这样就可以在放大器的输出端输入一个采样保持开关。该开关输入到驱动缓冲器的A / D转换器。各种握手信号与遥测系统配合，以传送峰值时间A / D阀进行脉冲高度测量。

59. 发明授权

US4999817A Programmable gain control for rotating transducer ultrasonic tools 失效
标题翻译：旋转传感器超声波工具的可编程增益控制
公开(公告)号：US4999817A
公开(公告)日：1991-03-12
申请号：US483486
申请日：1990-02-22
申请人： Mark D. Zimmer
发明人： Mark D. Zimmer
IPC分类号： G01V1/24 , G01V1/46
CPC分类号： G01V1/46 , G01V1/245
摘要： A rotary ultrasonic transducer logging tool is set forth which has a transmitter connected to a transducer for transmitting pulses periodically, and a rotor with angle sensor connected thereto. One full revolution is divided into a specified number of incremental steps. The output of the receiver is supplied to an automatic gain control amplifier, then to an analog to digital converter. A gain control setting for the AGC amp is included. The AGC setting for the particular corresponding points in a first revolution of the transducer are used to provide settings for the AGC amplifier in the next revolution. A first buffer is used to store the data for the first revolution, a second buffer for the second revolution, and alternately back to the first buffer. These two buffers provide an output signal for a gain control buffer then input to the AGC amplifier. Alternate forms of gain control signal selection are used such as prior gain control settings.

60. 发明授权

US4990774A Technique for obtaining high vertical resolution formation capture cross sections from pulsed neutron logs 失效
标题翻译：用于从脉冲中子测井获得高垂直分辨率捕获截面的技术
公开(公告)号：US4990774A
公开(公告)日：1991-02-05
申请号：US363009
申请日：1989-06-08
申请人： Harry D. Smith, Jr. , Dennis F. Wyatt, Jr. , Michael P. Smith
发明人： Harry D. Smith, Jr. , Dennis F. Wyatt, Jr. , Michael P. Smith
IPC分类号： G01V5/10
CPC分类号： G01V5/104 , G01V5/107
摘要： Improved vertical resolution from pulse neutron logs is obtained by the disclosed process; a pulse of fast neutrons is emitted from a source and counts are taken at near and far dectors. This is done repetitively so that the interval between neutron bursts is conveniently divided into a number of gates, the preferred form being six contiguous gates. The count rate especially in gates 3-6 is obtained and is processed in a modified form to thereby enhance vertical resolution. While before vertical resolution was dependent in part in spacing of the detectors and source, improved vertical resolution is obtained to thereby locate thin beds which would otherwise be obscured.

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