公开(公告)号：US4090395A

公开(公告)日：1978-05-23

申请号：US782108

申请日：1977-03-28

申请人： William P. Dixon ,  Thomas C. Caldwell ,  William T. Ilfrey

发明人： William P. Dixon ,  Thomas C. Caldwell ,  William T. Ilfrey

IPC分类号： E21B47/10 ,  G01M3/28

CPC分类号： G01M3/2853 ,  E21B47/1025 ,  G01M3/2876

摘要： Method and apparatus are disclosed for testing the pressure integrity of blowout preventers and wellhead casing hanger seals. An annular pressure chamber between the blowout preventer and wellhead casing hanger is formed by closing the blowout preventer on a tubular member having a test plug which seats within and sealingly engages the casing hanger. Pressure sensing means disposed along the length of the tubular member are used to monitor pressure above, below and within the annular chamber. Pressure changes detected by the sensing means are indicative of leakage across the blowout preventer or wellhead casing seal.

摘要翻译： 公开了用于测试防喷器和井口套管衣架密封件的压力完整性的方法和装置。 在防喷器和井口套管悬挂器之间的环形压力室通过在具有位于壳体悬挂器内并密封地接合壳体悬挂器的测试塞的管状构件上闭合防喷器而形成。 沿着管状构件的长度设置的压力感测装置用于监测环形室内，下方和内部的压力。 由感测装置检测到的压力变化表示穿过防喷器或井口套管密封件的泄漏。