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    • 7. 发明授权
    • System and apparatus for orienting a well casing perforating gun
    • 用于定向井套管穿孔枪的系统和装置
    • US4410051A
    • 1983-10-18
    • US238907
    • 1981-02-27
    • Wilbur L. DanielEugene J. LinyaevArnold M. WalkowGregory J. Wilkinson
    • Wilbur L. DanielEugene J. LinyaevArnold M. WalkowGregory J. Wilkinson
    • E21B43/1185E21B43/119E21B43/117
    • E21B43/1185E21B43/119
    • A system for orienting a well casing perforating gun for utilization in wells having multiple tubing strings wherein it is desired to perforate the well casing in a zone other than the deepest production zone of the well and includes a hoist and associated apparatus for moving the perforating apparatus through the well and actuating the perforating gun. The perforating apparatus includes an elongated housing supportable on a cable, rollers on the exterior of the housing to support it on the interior of the well casing and/or tubing, the casing perforating gun, an orienting apparatus operable to orient the perforating gun relative to a string of tubing within the casing, a swivel within the housing to permit rotating motion of the lower portion of the housing relative to an upper portion of the housing, and an eccentric weight below the swivel to assist in positioning and aligning the casing perforating gun to the desired position.
    • 一种用于定向井套管穿孔枪的系统,用于具有多个管柱的井中,其中期望在井的最深生产区域之外的区域中穿孔井套,并且包括用于移动穿孔装置的提升机和相关联的装置 通过井并致动穿孔枪。 穿孔装置包括可在电缆上支撑的细长壳体,壳体外部的辊,以将其支撑在井套管和/或管道的内部,套管穿孔枪,定向装置,可操作以使射孔枪相对于 壳体内的一排管,在壳体内的旋转件,以允许壳体的下部相对于壳体的上部的旋转运动,以及在旋转件下方的偏心重块,以帮助定位和对准套管穿孔枪 到期望的位置。
    • 9. 发明授权
    • Apparatus for determining a natural current flow in well casing
    • 用于确定井套管中自然电流的装置
    • US4431963A
    • 1984-02-14
    • US305873
    • 1981-09-28
    • Arnold M. Walkow
    • Arnold M. Walkow
    • C23F13/04E21B41/02G01V3/18G01R27/02
    • E21B41/02C23F13/04G01V3/18
    • An apparatus for determining the natural current flow in the casing of a well. The apparatus includes earth surface control and recording equipment connected by a cable to an instrument housing. A casing collar locator on the instrument is used to assist in positioning the instrument in the well casing. A plurality of electrodes on the instrument are contactable with the interior of the casing. The earth surface equipment and the electrodes are used to measure voltages and to pass an electrical current through the casing. Measurements of native voltages in the casing and the change in voltage between two locations in the casing during application of a known current are used to determine the casing's resistance at that location in the well and the native current flow between the well casing and the earth formation throughout the well.
    • 一种用于确定井的壳体中的自然电流的装置。 该装置包括通过电缆连接到仪器壳体的地面控制和记录设备。 仪器上的套管定位器用于帮助将仪器定位在井套管中。 仪器上的多个电极可与壳体的内部接触。 地面设备和电极用于测量电压并使电流通过外壳。 在使用已知电流的情况下,测量套管中的天然电压和外壳中两个位置之间的电压变化用于确定套管在井中该位置处的电阻以及井套管与地层之间的天然电流 整个井