Dipmeter apparatus and method for investigating earth formations
    1.
    发明公开
    Dipmeter apparatus and method for investigating earth formations 失效
    Neigungsmessgerätund -verfahren zum Untersuchen von Erdformationen。

    公开(公告)号:EP0541425A2

    公开(公告)日:1993-05-12

    申请号:EP92402946.5

    申请日:1992-10-30

    IPC分类号: E21B47/026 G01V3/20

    CPC分类号: G01V3/20 E21B47/026

    摘要: A disclosed embodiment (Fig. 2) utilizes one or more toroidal coil antennas (205, 215) mounted, in an insulating medium (206), on a drill collar (202) to induce currents which travel in a path that includes the drill collar (202) and earth formations around the drill collar (202). At least one array of electrodes (A1-A20) is provided on at least one stabilizer blade (220A) of the drill collar (202) and is utilized to detect currents transmitted by toroidal coil antennas (205, 215) which return via the formations to the electrodes (A1-A20) laterally; that is, approximately normal to the axis of the drill collar (202). Signal traces are obtained from measurements taken at respective ones of the transducers, and a dip characteristic of the formations is determined from the signal traces and from signals representing the rotational orientation of the drill collar (202).

    摘要翻译: 公开的实施例(图2)利用在绝缘介质(206)中安装在钻铤(202)上的一个或多个环形线圈天线(205,215)来诱导在包括钻铤的路径中行进的电流 (202)和钻铤(202)周围的地层。 至少一个电极阵列(A1-A20)设置在钻铤(202)的至少一个稳定器叶片(220A)上,并且用于检测由环形线圈天线(205,215)传输的电流,其经由地层返回 侧向电极(A1-A20) 即大致垂直于钻铤(202)的轴线。 从在各个换能器处获得的测量获得信号迹线,并且从信号迹线和表示钻铤(202)的旋转取向的信号确定地层的倾斜特性。

    Method and apparatus for investigating earth formations
    4.
    发明公开
    Method and apparatus for investigating earth formations 失效
    用于调查地球形态的方法和装置

    公开(公告)号:EP0540425A3

    公开(公告)日:1993-06-16

    申请号:EP92402945.7

    申请日:1992-10-30

    IPC分类号: G01V3/20

    CPC分类号: G01V3/20

    摘要: Apparatus and method are disclosed for determining the resistivity of formations surrounding an earth borehole. An electrically conductive metal body (202), such an a drill collar on a drill string, is movable through the borehole. A transmitting toroidal coil antenna (205) is disposed on the body (202) and is energized to induce a current which travels in a path that includes the body (202) and the formations. An electrode (226,227,229,235) is disposed on the body, and a first signal which depends on the electrical effect of the current on the electrode is measured to obtain an indication of the resistivity of the formations. In a form of the invention, a second transmitting toroidal coil antenna (T2) establishes a second current in the body (202) that travels in a path that includes the body (202) and the formations, and a second signal is measured at the electrode (R). A current monitor measures the axial current passing a monitor position on the body, to obtain a monitor current value. A compensated indication of formation resistivity can then be obtained as a function of the first signal, the second signal, and the monitor current value. A local communication system facilitates the ultimate communication of information to the earth's surface.

    Method and apparatus for investigating earth formations
    6.
    发明公开
    Method and apparatus for investigating earth formations 失效
    Verfahren undGerätzum Untersuchen von Erdformationen。

    公开(公告)号:EP0540425A2

    公开(公告)日:1993-05-05

    申请号:EP92402945.7

    申请日:1992-10-30

    IPC分类号: G01V3/20

    CPC分类号: G01V3/20

    摘要: Apparatus and method are disclosed for determining the resistivity of formations surrounding an earth borehole. An electrically conductive metal body (202), such an a drill collar on a drill string, is movable through the borehole. A transmitting toroidal coil antenna (205) is disposed on the body (202) and is energized to induce a current which travels in a path that includes the body (202) and the formations. An electrode (226,227,229,235) is disposed on the body, and a first signal which depends on the electrical effect of the current on the electrode is measured to obtain an indication of the resistivity of the formations. In a form of the invention, a second transmitting toroidal coil antenna (T2) establishes a second current in the body (202) that travels in a path that includes the body (202) and the formations, and a second signal is measured at the electrode (R). A current monitor measures the axial current passing a monitor position on the body, to obtain a monitor current value. A compensated indication of formation resistivity can then be obtained as a function of the first signal, the second signal, and the monitor current value. A local communication system facilitates the ultimate communication of information to the earth's surface.

    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和方法。 导电金属体(202),诸如钻柱上的钻铤,可移动穿过钻孔。 发射环形线圈天线(205)设置在主体(202)上并被通电以引起在包括主体(202)和地层的路径中行进的电流。 电极(226,227,229,235)设置在主体上,并且测量取决于电流对电极的电效应的第一信号以获得地层电阻率的指示。 在本发明的形式中,第二传输环形线圈天线(T2)在主体(202)中建立在包括主体(202)和地层的路径中行进的第二电流,并且在第 电极(R)。 电流监视器测量通过身体上的监视器位置的轴向电流,以获得监视器电流值。 然后可以获得作为第一信号,第二信号和监视电流值的函数的地层电阻率的补偿指示。 本地通信系统有助于最终将信息传达给地球表面。

    Diamond window assembly for optical logging
    8.
    发明公开
    Diamond window assembly for optical logging 审中-公开
    Bohrlochmessung的Diamantfensteranordnungfüroptische

    公开(公告)号:EP2955323A1

    公开(公告)日:2015-12-16

    申请号:EP14290169.3

    申请日:2014-06-11

    发明人: Wu, Xu Luling, Martin

    IPC分类号: E21B47/00 G01N21/00 C30B25/02

    摘要: Devices and methods for well logging using a diamond window assembly are provided. A method according to the disclosure includes placing a downhole tool in a wellbore in a geological formation and compressing a window assembly in the downhole tool against the geological formation. The window assembly may include a polycrystalline diamond compound material fused with a monocrystalline diamond window that holds the monocrystalline diamond window in place, despite being compressed against the geological formation. First photonic radiation may be emitted through the monocrystalline diamond window onto the geological formation. Second photonic radiation may be detected through the monocrystalline diamond window. This second photonic radiation may derive from interactions between the first photonic radiation and the geological formation. As such, the second photonic radiation may carry information relating to the composition of the geological formation (e.g., the presence or absence of hydrocarbons).

    摘要翻译: 提供了使用钻石窗组件进行测井的装置和方法。 根据本公开的方法包括将井下工具放置在地质层中的井眼中并将井下工具中的窗组件压靠在地质层上。 窗组件可以包括与单晶金刚石窗口熔合的多晶金刚石复合材料,其将单晶金刚石窗口保持在适当位置,尽管被压缩抵抗地质构造。 第一光子辐射可以通过单晶金刚石窗口发射到地质层上。 可以通过单晶金刚石窗口检测第二光子辐射。 第二个光子辐射可以源于第一个光子辐射与地质构造之间的相互作用。 因此,第二光子辐射可以携带与地质构造的组成有关的信息(例如,碳氢化合物的存在或不存在)。

    DETERMINING SEISMIC SENSOR ORIENTATION IN A WELLBORE
    9.
    发明公开
    DETERMINING SEISMIC SENSOR ORIENTATION IN A WELLBORE 审中-公开
    欧洲最大的电力公司einem Bohrloch的感应器

    公开(公告)号:EP2749906A1

    公开(公告)日:2014-07-02

    申请号:EP12306710.0

    申请日:2012-12-28

    摘要: A well-logging tool includes a magnetic field logging tool and a borehole seismic array, which includes a plurality of seismic sensor devices coupled together in series. Each seismic sensor device includes a sensor housing and at least one seismic sensor carried by the sensor housing. A magnetometer is carried by the sensor housing to sense the local magnetic field. A controller cooperates with the magnetic field logging tool to generate a log of the local magnetic field relative to the true earth geographic pole. The controller cooperates with the borehole seismic array to determine an orientation of each seismic sensor device based upon the respective sensed local magnetic field and log of the local magnetic field relative to the earth geographic pole.

    摘要翻译: 测井工具包括磁场测井工具和井眼地震阵列,其包括串联耦合在一起的多个地震传感器装置。 每个地震传感器装置包括传感器外壳和由传感器外壳承载的至少一个地震传感器。 磁力仪由传感器外壳承载以感测局部磁场。 控制器与磁场测井工具配合,以产生相对于真实地球地极的局部磁场的对数。 控制器与钻孔地震阵列配合,以基于相应的感测到的局部磁场和相对于地球地球极的局部磁场的对数来确定每个地震传感器装置的取向。

    Fluid analysis using electron-positron annihilation
    10.
    发明公开
    Fluid analysis using electron-positron annihilation 审中-公开
    Flüssigkeitsanalysemittels Elektron-Positron-Annihilation

    公开(公告)号:EP2927650A1

    公开(公告)日:2015-10-07

    申请号:EP14290101.6

    申请日:2014-04-04

    IPC分类号: G01F1/74 G01F25/00

    摘要: A method for analyzing fluids using electron-positron annihilation is provided. In one embodiment, the method includes emitting positrons from a radioactive source of a multiphase flow meter and detecting photons generated from annihilation of electrons and the positrons. Detecting the photons can include detecting a first subset of the photons transmitted through a measurement conduit of the multiphase flow meter and detecting a second subset of the photons transmitted through a reference conduit of the multiphase flow meter. The detection of the first and second subsets of photons can then be used in determining a characteristic of a fluid within the measurement conduit. Additional systems, devices, and methods are also disclosed.

    摘要翻译: 提供了一种使用电子 - 正电子湮灭分析流体的方法。 在一个实施方案中,该方法包括从多相流量计的放射源发射正电子并检测由电子和正电子的湮灭产生的光子。 检测光子可以包括检测通过多相流量计的测量管道传输的光子的第一子集,并检测通过多相流量计的参考导管传输的光子的第二子集。 然后可以使用第一和第二子光子的检测来确定测量导管内的流体的特性。 还公开了附加的系统,装置和方法。