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    • 11. 发明授权
    • Well pipe perforation detector
    • 井管穿孔检测仪
    • US4525815A
    • 1985-06-25
    • US347164
    • 1982-02-09
    • W. Keith R. Watson
    • W. Keith R. Watson
    • E21B47/09G01V1/46G10K11/35G01V1/40
    • G10K11/357E21B47/09G01V1/46Y10S367/912
    • Apparatus is provided to detect a discontinuity indicative of a hole in the bore wall of an axially extending tubular member. It comprises:(a) a carrier to be traveled axially lengthwise in the bore of the tubular member,(b) an acoustical wave transmitter located on the carrier to transmit acoustical waves for travel toward the bore wall and for reflection therefrom,(c) an acoustical wave detector at least partially located on the carrier to receive acoustical waves reflected from the bore wall and to detect the presence or absence of such reflected waves, and(d) a control for providing an indication of such discontinuity, and for controlling the transmission to the detector of the reflected acoustical waves, and characterized in that the detector is controllably exposed to reception of a sequential succession of reflected acoustical waves corresponding to a sequential succession of bore wall portions from which the waves are reflected.
    • 提供了用于检测指示轴向延伸的管状构件的孔壁中的孔的不连续性的装置。 它包括:(a)在管状构件的孔中沿纵向轴向行进的载体,(b)位于载体上的声波发射器,用于传送声波以朝向孔壁行进并用于反射;(c) 至少部分地位于载体上以接收从孔壁反射的声波并检测这种反射波的存在或不存在的声波检测器,以及(d)用于提供这种不连续性的指示的控制,并且用于控制 传输到反射声波的检测器,并且其特征在于,检测器被可控地暴露于对应于波形从其反射的连续的孔壁部分的顺序连续的反射声波。