公开(公告)号：US20130043874A1

公开(公告)日：2013-02-21

申请号：US13266080

申请日：2009-10-29

申请人： Brian Clark ,  Reza Taherian ,  Darek W. Logan ,  Garry Holmen ,  Anthony R. Dopf ,  Aaron Logan ,  Robert Ulter

发明人： Brian Clark ,  Reza Taherian ,  Darek W. Logan ,  Garry Holmen ,  Anthony R. Dopf ,  Aaron Logan ,  Robert Ulter

IPC分类号： G01V3/06

CPC分类号： G01V3/24 ,  E21B10/00 ,  E21B17/028 ,  E21B45/00 ,  E21B47/122

摘要： A drill bit assembly for measuring reservoir formation properties comprises a bit head and a pin body, and an electrically insulated gap joint between two conductive parts of the drill bit assembly. The bit head has a cutting end and an opposite connecting end with an engagement section. The pin body comprises a connecting end with an engagement section. The pin connecting end is connected to the bit head connecting end such that the engagement sections overlap. The electrically insulating gap joint can fill a gap between the bit head and pin body engagement sections such that the bit head and pin body are mechanically connected together at the connecting ends but electrically separated. Alternatively or additionally, the pin body can have two pieces which are separated by an electrically insulating gap joint. An electrical conductor is electrically connected at a first end to the bit head and is communicable at a second end with an alternating current signal to transmit an alternating current into the bit head, thereby inducing an electric current into a reservoir formation adjacent the bit head. Electronic equipment includes measurement circuitry configured to determine the alternating current at the bit head, the alternating current being inversely proportional to a bit resistivity of the formation.

摘要翻译： 用于测量储层形成性能的钻头组件包括钻头头和销体，以及在钻头组件的两个导电部件之间的电绝缘间隙接头。 钻头头具有切割端和与接合部分相对的连接端。 销主体包括具有接合部分的连接端。 销连接端连接到钻头头连接端，使得接合部重叠。 电绝缘间隙接头可以填充钻头头和销体接合部分之间的间隙，使得钻头头和销体在连接端机械地连接在一起但是电分离。 或者或另外，销体可以具有由电绝缘间隙接头分开的两个部件。 电导体在第一端处电连接到钻头头部，并且可在第二端与交流电信号通信，以将交流电流传输到钻头头中，从而引入电流进入与钻头头相邻的储层结构。 电子设备包括测量电路，其被配置为确定位头处的交流电，交流电与地层的位电阻成反比。

公开(公告)号：US08054070B1

公开(公告)日：2011-11-08

申请号：US12328065

申请日：2008-12-04

申请人： Mario Octavio Lanzagorta-Saldana

发明人： Mario Octavio Lanzagorta-Saldana

IPC分类号： G01R33/02 ,  G01R33/00 ,  G01V3/06

CPC分类号： G01R33/0354 ,  G01R33/10

摘要： A field distributed array of a plurality of underwater sensors are used to detect, preferably using a nanomagnet, slight changes in magnetic fields caused by passing metallic structures, such as submarines. Each sensor is preferably configured to communicate with, e.g., an Unmanned Underwater Vehicle (UUV), which then passes raw or aggregated information to a user (person or computing device). In one possible embodiment, an aircraft deploys hundreds of sensors on the “battlefield” (i.e., in the ocean). Some of the sensors are controlled to sink and anchor to the bottom, while others are controlled to float at a predetermined depth, from which they transmit data about their magnetic environs, such that a map of the geomagnetic field in the area can be generated. This type of distributed sensor system is particularly effective for antisubmarine warfare (ASW) operations across a wide area of a zone of operations.

摘要翻译： 使用多个水下传感器的场分布阵列来优选地使用纳米磁体来检测由诸如潜艇的通过的金属结构引起的磁场的轻微变化。 每个传感器优选地被配置为与例如无人水下车辆（UUV）通信，然后无人水下车辆（UUV）将原始或聚合的信息传递给用户（人或计算设备）。 在一个可能的实施例中，飞机在“战场”（即在海洋中）部署数百个传感器。 一些传感器被控制为下沉并锚固到底部，而其他传感器被控制为浮动在预定的深度，从它们传送关于它们的磁环境的数据，使得可以产生该区域中的地磁场的图。 这种类型的分布式传感器系统对于在操作区域的广泛区域的反潜战（ASW）操作特别有效。

公开(公告)号：US6278655B2

公开(公告)日：2001-08-21

申请号：US27355699

申请日：1999-03-22

申请人： CIT ALCATEL

发明人： LANCASTER PHILIP C ,  WEBB STEPHEN M

IPC分类号： G01M11/00 ,  G01V3/06 ,  H01B7/32 ,  H04B10/16 ,  H04B10/17 ,  G01S3/00

CPC分类号： G01V3/06

摘要： A method of locating a submarine cable includes the steps of transmitting a toning signal along the submarine cable, the toning signal being a superposition of a first signal waveform to be detected and at least a second signal waveform such that the second signal waveform interferes with the first signal waveform to limit the peak to peak amplitude of the toning signal for transmission. Preferably, the toning signal is a square wave. The method provides a way of offsetting the loss of transmission distance due to the use of state of the art optical repeaters. Pre-emphasis of high frequency harmonics in the toning signal enables a detectable toning signal to propagate still further.

摘要翻译： 一种定位海底电缆的方法包括以下步骤：沿着海底电缆发送调色信号，调色信号是待检测的第一信号波形和至少第二信号波形的叠加，使得第二信号波形干扰 第一信号波形，以限制用于传输的调色信号的峰值到峰值幅度。 优选地，调色信号是方波。 该方法提供了通过使用现有技术的光中继器来抵消传输距离的损失的方式。 调色信号中高频谐波的预加重使得可检测色调信号进一步传播。

公开(公告)号：US5920194A

公开(公告)日：1999-07-06

申请号：US737060

申请日：1996-11-04

申请人： Andrew B Lewis ,  John R Cottle ,  Graham R Cooper

发明人： Andrew B Lewis ,  John R Cottle ,  Graham R Cooper

IPC分类号： G01S13/88 ,  G01V3/00 ,  G01V3/06 ,  G01V3/10 ,  G01V3/11 ,  G01V3/08

CPC分类号： G01V3/06

摘要： A locator such as a ground penetration probe (24) has spaced antennae (21,22,23) therein which detect electromagnetic signals from an object (26) such as a buried cable. By analyzing the electromagnetic signals using a suitable processor (25) it is possible to determine the separation of the locator and object (26), both in terms of the direction (X) corresponding to the spacing of the antennae (21,22,23) and the perpendicular direction (Y) to the object (26). This then permits a display to be generated showing visually the separation of the locator and the object (26). If the locator incorporates a tilt sensor, the processor (25) can then compensate for tilting of the locator, and determine the vertical and horizontal separation of the locator and the object (26). A confidence measurement may be obtained by measuring the separation of the locator and object (26) at one position, predicting the separation of the locator and object (26) at a second position, and comparing the predicted and measured separations.

摘要翻译： PCT No.PCT / GB95 / 01042 Sec。 371日期：1996年11月4日 102（e）日期1996年11月4日PCT提交1995年5月9日PCT公布。 公开号WO95 / 30913 日期1995年11月16日诸如接地穿透探针（24）的定位器在其中具有间隔开的天线（21,22,23），其检测来自诸如掩埋电缆的物体（26）的电磁信号。 通过使用合适的处理器（25）分析​​电磁信号，可以根据与天线的间隔（21,22,23）相对应的方向（X）来确定定位器和物体（26）的分离 ）和与物体（26）的垂直方向（Y）。 这样就允许生成显示器，目视地显示定位器和物体（26）的分离。 如果定位器包括倾斜传感器，则处理器（25）可以补偿定位器的倾斜，并且确定定位器和物体（26）的垂直和水平间隔。 可以通过测量在一个位置处的定位器和物体（26）的分离来预测在第二位置处的定位器和物体（26）的分离，并且比较预测和测量的间隔来获得置信度测量。

公开(公告)号：US5828219A

公开(公告)日：1998-10-27

申请号：US909547

申请日：1997-08-12

申请人： Jason Julian Hanlon ,  Andrzej Zbigniew Regini

发明人： Jason Julian Hanlon ,  Andrzej Zbigniew Regini

IPC分类号： G01V3/06 ,  G01R31/12 ,  G01V3/11

CPC分类号： G01V3/06

摘要： A system for detecting faults in the insulation layer surrounding a concealed conducting pipe (10) includes a signal generator (12) for applying an alternating current with a frequency of around 4Hz to the pipe, a magnetometer (102) for detecting the alternating current from the pipe (10) and a CPU (115) for identifying changes in the gradient of the detected current along the length of the concealed conducting pipe (10) which are caused by the faults in the insulation layer. The magnetometer (102) is used in connection with a locator(100) which detects a second alternating current applied to the pipe (10) by the signal generator (12), this second alternating current having a frequency of around 128Hz. The system can also use both these signals to determine the direction of the signals emulating from the pipe (10).

摘要翻译： 用于检测围绕隐蔽导电管（10）的绝缘层中的故障的系统包括：信号发生器（12），用于向管道施加约4Hz频率的交流电;磁力计（102），用于检测来自 所述管道（10）和用于识别由所述绝缘层中的故障引起的沿着所述隐蔽导管（10）的长度的检测电流的梯度的变化的CPU（115）。 磁力计（102）结合定位器（100）使用，定位器（100）通过信号发生器（12）检测施加到管道（10）的第二交流电流，该第二交流电流具有大约128Hz的频率。 系统还可以使用这两个信号来确定从管道（10）模拟的信号的方向。

公开(公告)号：US5280284A

公开(公告)日：1994-01-18

申请号：US27345

申请日：1993-03-08

申请人： J. Ralph Johler

发明人： J. Ralph Johler

IPC分类号： G01S13/02 ,  G01S13/88 ,  G01V3/06 ,  G01V3/12 ,  G01S13/04

CPC分类号： G01S13/0209 ,  G01S13/02 ,  G01V3/06 ,  G01V3/12 ,  G01S13/885

摘要： A method of processing electromagnetic signals which are injected into the earth from a capacitor and subsequently detected after reflection from subsurface layers, in order to determine the physical and electrical properties of those layers. The method is based on an iterative process which models the earth as a series of vertically stacked horizontal layers, each characterized by its physical properties of depth beneath the surface and thickness, and its electrical properties of resistivity (or conductivity) and relative dielectric constant. An initial propagation model which specifies the electrical properties of a particular layer or set of layers is constructed and applied to a model input pulse to produce a predicted return pulse which results from the reflection and/or transmission of the input pulse at the boundaries of the layer(s). The predicted return pulse is then compared to actual return pulse data which is selected so as to roughly correspond to a return pulse produced at the location of the modeled layer(s). The result of the comparison forms the basis for adaptively varying the parameters of the propagation model in a manner which is intended to increase the correlation between the predicted return pulse and the actual data. Repetition of the method for different layers or additional locations permits the electrical characteristics of the earth beneath a specified region to be determined. Knowledge of these characteristics can be used to infer the type of geologic formation responsible for transforming the input pulse into the received pulse.

摘要翻译： 一种处理电磁信号的方法，该电磁信号从电容器注入到地球中并随后在从地下层反射之后被检测，以便确定那些层的物理和电性质。 该方法基于迭代过程，其将地球模拟为一系列垂直堆叠的水平层，每个层的特征在于其在表面和厚度之下的深度的物理性质及其电阻率（或电导率）和相对介电常数的电学性质。 构建一个指定特定层或一组层的电性能的初始传播模型，并将其应用于模型输入脉冲，以产生预测的返回脉冲，该预测返回脉冲是由输入脉冲的边界处的反射和/或传输引起的 层。 然后将预测的返回脉冲与实际返回脉冲数据进行比较，该实际返回脉冲数据被选择为大致对应于在建模层的位置处产生的返回脉冲。 比较结果构成了以增加预测返回脉冲与实际数据之间的相关性的方式自适应地改变传播模型的参数的基础。 重复不同层或附加位置的方法允许确定特定区域之下的地球的电特性。 可以使用这些特征的知识来推断负责将输入脉冲变换成接收脉冲的地质构造的类型。

公开(公告)号：US5264795A

公开(公告)日：1993-11-23

申请号：US539851

申请日：1990-06-18

申请人： Alan J. Rider

发明人： Alan J. Rider

IPC分类号： E21B47/022 ,  G01V3/06 ,  G01V3/11 ,  G01V3/165 ,  H04B13/02

CPC分类号： G01V3/06 ,  E21B47/02224

摘要： An improved locator system is provided which transmits digital and analog information over an electromagnetic field that is radiating from an underground source. The locator system includes a transmitter that modulates its output signal by turning its output signal on and off in response to a sequence of digital words. The transmitter also modulates an analog signal onto the transmitted signal. The modulated analog signal can include an audio frequency or voice signal. The improved locator system also includes a receiver that senses and detects the transmitted digital or analog signal impressed on the radiated electromagnetic field. The receiver also demodulates the transmitted audio frequency signal and provides an audio output signal to an operator.

摘要翻译： 提供了一种改进的定位系统，其通过从地下源辐射的电磁场传输数字和模拟信息。 定位系统包括一个发射器，通过响应于一系列数字字来打开和关闭其输出信号来调制其输出信号。 发射机还将模拟信号调制到发射信号上。 调制的模拟信号可以包括音频或语音信号。 改进的定位器系统还包括一个接收器，用于感测和检测被辐射的电磁场上所传输的数字或模拟信号。 接收机还解调发送的音频信号，并向操作者提供音频输出信号。

公开(公告)号：US5260659A

公开(公告)日：1993-11-09

申请号：US635603

申请日：1991-04-01

申请人： Peter M. Flowerdew ,  Andrezej Z. Regini

发明人： Peter M. Flowerdew ,  Andrezej Z. Regini

IPC分类号： G01V3/08 ,  G01R31/08 ,  G01V3/06 ,  G01V3/11 ,  G01R19/00 ,  G01V3/10

CPC分类号： G01V3/06

摘要： A system for tracing routes of conductors is disclosed. An alternating signal is applied to the object to be traced (12), and the field produced by this signal is detected remotely from the object. In order to distinguish between signals produced by the object being traced and those produced by nearby conductors (14) due to capacitive coupling, the alternating signal has first and second components, related in frequency and phase, and the field is detected at a plurality of positions. The phase relationship of the detected signals is investigated to determine unambiguously the position of the object concerned. In one embodiment, the second frequency component is a harmonic of the other. In another embodiment the frequency of the second component is the frequency of the first, plus or minus a sub-harmonic of the first.

摘要翻译： PCT No.PCT / GB90 / 00212 Sec。 371日期1991年4月1日 102（e）日期1991年4月1日PCT提交1990年2月12日PCT公布。 出版物WO90 / 09601 日期：1990年8月23日。公开了一种用于跟踪导线路径的系统。 将交替信号施加到要跟踪的对象（12），并且从对象远程检测由该信号产生的场。 为了区分被跟踪对象产生的信号和由于电容耦合而由附近的导体（14）产生的信号，交变信号具有频率和相位相关的第一和第二分量，并且在多个 职位 研究检测信号的相位关系，明确地确定有关对象的位置。 在一个实施例中，第二频率分量是彼此的谐波。 在另一个实施例中，第二分量的频率是第一分量的第一，正或负子谐波的频率。

公开(公告)号：US5093622A

公开(公告)日：1992-03-03

申请号：US325153

申请日：1989-03-17

申请人： William D. Balkman

发明人： William D. Balkman

IPC分类号： G01V3/10 ,  G01V3/06 ,  G01V3/11

CPC分类号： G01V3/06

摘要： An apparatus for determining the direction to and position of a buried conductor carrying an AC signal. The apparatus employs a unique antenna unit having upper and lower sensors, each sensor having two orthogonal solenoid coils. The signals from these coils, which are representative of the magnetic flux therethrough, are processed to yield corresponding digital values. The numbers are combined in a novel formula to yield a value which has been empirically found to be indicative of lateral postion. An appropriate display is controlled by the microprocessor according to the sign and magnitude of the positional value.

公开(公告)号：US5055793A

公开(公告)日：1991-10-08

申请号：US520528

申请日：1990-05-08

申请人： Donald M. Mulcahey

发明人： Donald M. Mulcahey

IPC分类号： G01V3/06 ,  G01V3/11

CPC分类号： G01V3/06

摘要： A system of apparatus for locating underground metallic lines includes a transmitter apparatus at a first work station above ground for inducing a current in the line and a receiver at a second work station for making field measurements. The transmitter apparatus includes a battery-powered transmitter circuit supported from a portable housing, a ferrite core antenna incorporated within the transmitter circuit, and a separate tank circuit which includes a loop antenna and a capacitor and is tuned to a predetermined operating frequency and is electrically isolated from the ferrite core antenna. The ferrite core antenna transfers energy through a magnetic flux field to the loop antenna, and a magnetic field generated from the loop antenna inductively creates an alternating current in the line which then generates an alternating electromagnetic field about the line at the second work station.

摘要翻译： 一种用于定位地下金属线路的装置系统包括在地面上方的第一工作站处的诱发线路中的电流的发射机装置和用于进行现场测量的第二工作站处的接收机。 发射机装置包括从便携式外壳支撑的电池供电的发射机电路，并入发射机电路内的铁氧体磁芯天线，以及包括环形天线和电容器并且被调谐到预定工作频率并且被电 与铁氧体磁芯天线隔离。 铁氧体磁芯天线通过磁通场将能量传递到环形天线，并且从环形天线产生的磁场在线路中感应地产生交流电，然后在第二工作站处产生围绕线路的交变电磁场。