Method and apparatus for communication with a downhole tool
    1.
    发明授权
    Method and apparatus for communication with a downhole tool 有权
    用于与井下工具通信的方法和装置

    公开(公告)号:US06308137B1

    公开(公告)日:2001-10-23

    申请号:US09514866

    申请日:2000-02-28

    IPC分类号: G01V150

    CPC分类号: E21B43/14

    摘要: An apparatus for communication with a downhole tool includes uphole and downhole equipment. The uphole equipment includes a signal source (or array) coupled to a programmable triggering system and a precision clock. Optionally, the uphole equipment may include receivers for capturing reference signals near the source and may include telemetry equipment for receiving MWD signals from the downhole equipment. The downhole equipment includes one or more receivers, signal processing equipment, memory, and a precision clock. Optionally, the downhole equipment also includes MWD telemetry equipment for transmitting data to the surface. The methods of the invention include, but are not limited to, synchronizing the recordation of signals detected downhole with the firing of the signal source and processing the recorded signals to eliminate useless information. The methods of the invention present several techniques for true source signal recognition whereby actual signal information is extracted from the recordings of the receivers so that the ultimate stored data is compact and virtually 100% useful. This elimination of useless data conserves valuable telemetry time and/or enables longer operation of the apparatus before tripping out to retrieve stored data by using memory efficiently.

    摘要翻译: 用于与井下工具通信的装置包括井上和井下设备。 井上设备包括耦合到可编程触发系统和精密时钟的信号源(或阵列)。 可选地,井上设备可以包括用于捕获靠近源的参考信号的接收器,并且可以包括用于从井下设备接收MWD信号的遥测设备。 井下设备包括一个或多个接收器,信号处理设备,存储器和精密时钟。 可选地,井下设备还包括用于将数据传送到地面的MWD遥测设备。 本发明的方法包括但不限于将井下检测的信号的记录与信号源的触发同步并处理所记录的信号以消除无用的信息。 本发明的方法提供了用于真实的源信号识别的几种技术,从而从接收机的记录中提取实际信号信息,使得最终存储的数据是紧凑的并且实际上100%有用。 这种无用数据的消除节省了有价值的遥测时间和/或在脱扣之前使装置能够更长时间的操作,以通过有效地使用存储器来检索存储的数据。

    Real-time velocity and pore-pressure prediction ahead of drill bit
    2.
    发明授权
    Real-time velocity and pore-pressure prediction ahead of drill bit 有权
    钻头前的实时速度和孔隙压力预测

    公开(公告)号:US08995224B2

    公开(公告)日:2015-03-31

    申请号:US10604878

    申请日:2003-08-22

    IPC分类号: G01V1/24 G01V1/42 G01V1/30

    CPC分类号: G01V1/42 G01V1/303

    摘要: Techniques for estimating velocity ahead of a drill bit include generating seismic waves at a surface from at least two different source positions in the vicinity of a borehole, receiving seismic waves reflected from a reflector ahead of the drill bit at one or more locations in the borehole, determining travel times of the seismic waves received at the one or more locations in the borehole, and inverting the travel times to determine a velocity of a formation ahead of the drill bit. One embodiment includes transforming the velocity into pore pressure of the formation.

    摘要翻译: 用于估计钻头前方的速度的技术包括在钻孔附近的至少两个不同的源位置的表面产生地震波,在钻孔的一个或多个位置接收从钻头前方的反射器反射的地震波 确定在钻孔中的一个或多个位置处接收的地震波的行进时间,以及反转行进时间以确定钻头前方的地层的速度。 一个实施例包括将速度转化为地层的孔隙压力。

    Method for calibrating current and magnetic fields across a drill collar
    3.
    发明授权
    Method for calibrating current and magnetic fields across a drill collar 有权
    校准钻铤上的电流和磁场的方法

    公开(公告)号:US09360581B2

    公开(公告)日:2016-06-07

    申请号:US13128506

    申请日:2009-11-17

    IPC分类号: G01V3/08 G01V3/26 E21B47/024

    CPC分类号: G01V3/26 E21B47/024

    摘要: A method for drilling a well includes applying a current across a drill collar that surrounds an internal magnetometer. The current travels across the drill collar and along one or more other current paths to return to the drill collar. The method also includes using the magnetometer to measure magnetic fields due to the current being applied across the drill collar and the current across one or more other current paths while the drill collar is disposed at a first angle of rotation and rotating the drill collar to a second angle of rotation. The method further includes measuring the magnetic fields using the internal magnetometer while the drill collar is disposed at the second angle of rotation and determining a relationship between the current across the drill collar and a portion of the magnetic fields due to the current across the drill collar measurable by the internal magnetometer.

    摘要翻译: 用于钻井的方法包括在围绕内部磁力计的钻铤上施加电流。 电流穿过钻铤并且沿着一个或多个其它电流路径行进以返回钻铤。 该方法还包括使用磁力计来测量磁场,这是因为电流被施加在钻铤上的电流和跨过一个或多个其它电流路径的电流,同时钻铤设置在第一旋转角度并将钻铤旋转到 第二个旋转角度。 该方法还包括使用内部磁力计测量磁场,同时钻铤以第二旋转角度设置,并且确定由于穿过钻铤的电流而导致钻铤和电场的一部分之间的电流之间的关系 可由内部磁力计测量。

    Three Dimensional Hanging Ornament
    4.
    发明申请
    Three Dimensional Hanging Ornament 审中-公开
    三维吊饰

    公开(公告)号:US20150351575A1

    公开(公告)日:2015-12-10

    申请号:US14728267

    申请日:2015-06-02

    申请人: Brian Clark

    发明人: Brian Clark

    IPC分类号: A47G33/00

    CPC分类号: A47G33/08 A63H33/40 B44C5/00

    摘要: A three dimensional ornament is provided that is configured to be suspended from a tether and rotate to provide the appearance of different shapes as the ornament rotates. The ornament comprises a frame construction with an open interior and a frame member perimeter. An upper apex affixes to a swivel joint and is aligned with the lower apex of the ornament along the ornament centerline. The centerline of the ornament separates the left side from the right side of the ornament, whereby the frame members and corresponding connecting apexes of the frame member periphery are mirror images of one another across the centerline of the ornament. As the ornament spins, it projects a changing image from an onlooker's perspective, which changes throughout the ornament rotation and based on the rotation speed thereof.

    摘要翻译: 提供三维装饰物,其被构造成从系绳悬挂并旋转以提供装饰品旋转时的不同形状的外观。 装饰品包括具有开放内部和框架构件周边的框架结构。 上顶点附着于旋转接头,并沿着装饰中心线与装饰品的下顶点对齐。 装饰品的中心线将左侧与装饰品的右侧分开,由此框架构件和框架构件周边的相应的连接顶点是穿过装饰品的中心线的彼此的镜像。 随着装饰品的旋转,它从一个旁观者的视角投射出一个不断变化的图像,它在整个装饰旋转和根据其旋转速度的变化。

    System and method for detecting casing in a formation using current
    5.
    发明授权
    System and method for detecting casing in a formation using current 有权
    使用电流检测地层中套管的系统和方法

    公开(公告)号:US08842020B2

    公开(公告)日:2014-09-23

    申请号:US13003428

    申请日:2009-05-12

    IPC分类号: G01V3/00 E21B47/022

    CPC分类号: E21B47/022

    摘要: The present disclosure is directed to systems and methods for relative positioning of wells. A method in accordance with an exemplary embodiment may include drilling a new well in a field having at least three completed wells using a drilling tool that includes a magnetometer. The method may further include driving current on a first pair of the at least three completed wells and then driving current on a second pair of the at least three completed wells, wherein the current is driven on each of the first and second pairs in a balanced mode. The method may also include measuring a direction of a first magnetic field generated by the current on the first pair using the magnetometer, measuring a direction of a second magnetic field generated by the current on the second pair using the magnetometer, and determining a location of the drilling tool relative to the completed wells based on the direction of the first magnetic field and the direction of the second magnetic field.

    摘要翻译: 本公开涉及用于井的相对定位的系统和方法。 根据示例性实施例的方法可以包括使用包括磁力计的钻孔工具在具有至少三个完井的钻井中钻新井。 该方法还可以包括在至少三个完成的阱的第一对上驱动电流,然后在所述至少三个完成的阱的第二对上驱动电流,其中在平衡的第一对和第二对中的每一个上驱动电流 模式。 该方法还可以包括使用磁力计测量由第一对上的电流产生的第一磁场的方向,使用磁力计测量由第二对上的电流产生的第二磁场的方向,以及确定 基于第一磁场的方向和第二磁场的方向相对于完井的钻孔工具。

    System and method for employing alternating regions of magnetic and non-magnetic casing in magnetic ranging applications
    6.
    发明授权
    System and method for employing alternating regions of magnetic and non-magnetic casing in magnetic ranging applications 失效
    在磁测距应用中采用磁性和非磁性壳体的交替区域的系统和方法

    公开(公告)号:US08749242B2

    公开(公告)日:2014-06-10

    申请号:US12999552

    申请日:2009-04-06

    申请人: Brian Clark

    发明人: Brian Clark

    IPC分类号: G01V3/08

    CPC分类号: E21B7/046 E21B47/02216

    摘要: A system and methods for facilitating drilling and/or drilling a well in an orientation with respect to an existing well are provided. Specifically, one method in accordance with present embodiments is directed to producing a magnetic field with a magnetic field source positioned in a non-magnetic region of casing within a first well, wherein the first well is cased with alternating regions of magnetic casing and non-magnetic casing. The method may also include producing at least one output from at least one magnetic field sensor capable of sensing directional magnetic field components, wherein the at least one output is based on detection of the magnetic field and wherein the at least one magnetic field sensor is positioned in a second well.

    摘要翻译: 提供了一种用于便于在相对于现有井的取向钻井和/或钻井的系统和方法。 具体地,根据本实施例的一种方法涉及产生具有位于第一阱内的壳体的非磁性区域中的磁场源的磁场,其中第一阱被套在磁性壳体和非磁性体的交替区域中, 磁性套管 该方法还可以包括从能够感测定向磁场分量的至少一个磁场传感器产生至少一个输出,其中所述至少一个输出基于磁场的检测,并且其中至少一个磁场传感器被定位 在第二口井。

    Sample rate conversion using infinite impulse response filters
    7.
    发明授权
    Sample rate conversion using infinite impulse response filters 有权
    使用无限脉冲响应滤波器的采样率转换

    公开(公告)号:US08618961B1

    公开(公告)日:2013-12-31

    申请号:US13797344

    申请日:2013-03-12

    IPC分类号: H03M7/00

    摘要: Digital methods and systems for signal processing and filtering are provided. The methods and corresponding systems provide asynchronous conversion of sampling rate frequencies and utilize advanced multistage phasor filters for converting an input signal having a first sampling rate into an output signal sampled in an arbitrary sequence of sampling times. The conversion process provides a sequence of sets of complex numbers representing a filtered version of the input signal. More specifically, the conversion process includes the calculation of values of the output signal by multiplying (e.g., scaling) the sets of complex numbers by a corresponding set of complex phasors, the complex phasors corresponding to the timing of the arbitrary time sequence to obtain a corresponding set of real results with the value of the output signal being the sum of the real results.

    摘要翻译: 提供了用于信号处理和滤波的数字方法和系统。 方法和相应的系统提供采样率频率的异步转换,并利用先进的多级相量滤波器将具有第一采样率的输入信号转换为以任意采样次序采样的输出信号。 转换过程提供表示输入信号的滤波版本的一组复数序列。 更具体地,转换处理包括通过将复数集合乘以(例如,缩放)相应的复相量集合来计算输出信号的值,复数相量与任意时间序列的定时相对应以获得 实际结果的对应集合,输出信号的值为真实结果的总和。

    Magnetic ranging while drilling using an electric dipole source and a magnetic field sensor
    8.
    发明授权
    Magnetic ranging while drilling using an electric dipole source and a magnetic field sensor 有权
    使用电偶极源和磁场传感器进行钻孔时的磁测距

    公开(公告)号:US08596382B2

    公开(公告)日:2013-12-03

    申请号:US12105698

    申请日:2008-04-18

    IPC分类号: E21B47/02

    CPC分类号: E21B47/02216 E21B43/2406

    摘要: A system and methods for drilling a well in a field having an existing well are provided. Specifically a method of drilling a new well in a field having an existing well includes drilling the new well using a bottom hole assembly (BHA) having a drill collar divided by an insulated gap, generating a current on the drill collar of the BHA while drilling the new well, and measuring from the existing well a magnetic field caused by the current on the drill collar of the BHA. Using measurements of the magnetic field, a relative position of the new well to the existing well may be determined.

    摘要翻译: 提供了一种用于在具有现有井的场中钻井的系统和方法。 具体地说,在具有现有井的油田中钻新井的方法包括使用具有钻铤分开绝缘间隙的底孔组件(BHA)来钻新井,同时钻孔时在BHA的钻铤上产生电流 新井,并从现有井测量由当前在BHA钻铤上引起的磁场。 使用磁场的测量,可以确定新井与现有井的相对位置。

    Providing background audio during telephonic communication
    9.
    发明授权
    Providing background audio during telephonic communication 有权
    在电话通信过程中提供背景音频

    公开(公告)号:US08488805B1

    公开(公告)日:2013-07-16

    申请号:US12649121

    申请日:2009-12-29

    IPC分类号: H04B3/00 H04M1/00

    摘要: Background audio can be provided during telephonic communication. Telephonic communication can be established via a network, such as between a user of a telephony device and a communication partner having a second telephony device. A voice signal may be received from the user via a microphone integral with the telephony device. An audio track can be retrieved, for example, from memory integral with the telephony device or from a third-party service provider via the communications network. Noise reduction is performed on the voice signal to produce a clean voice signal. The clean voice signal may be combined with the audio track to produce a combined signal, such that the audio track provides background audio to the clean voice signal. The combined signal can then be transmitted from the telephony device to the second telephony device via the communications network.

    摘要翻译: 可以在电话通信期间提供背景音频。 电话通信可以经由诸如电话设备的用户和具有第二电话设备的通信对方之间的网络来建立。 可以经由与电话设备集成的麦克风从用户接收语音信号。 可以例如从与电话设备集成的存储器或经由通信网络从第三方服务提供商检索音频轨道。 对语音信号进行降噪以产生干净的语音信号。 干净的语音信号可以与音频轨道组合以产生组合的信号,使得音频轨道向干净的语音信号提供背景音频。 然后可以经由通信网络将组合的信号从电话设备发送到第二电话设备。