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公开(公告)号:US3858648A
公开(公告)日:1975-01-07
申请号:US41222173
申请日:1973-11-02
Applicant: DRESSER IND
Inventor: JETT MARION BARNEY
IPC: E21B33/122 , E21B33/1295 , E21B23/06
CPC classification number: E21B33/1295 , E21B33/122
Abstract: A simplified and efficient dual string hydraulically actuated packer assembly is disclosed which utilizes unitary tubular anchor means, compressible packer elements, and spring-loaded, shearable, ratcheting packer lock means.
Abstract translation: 公开了一种简化和有效的双串液压致动封隔器组件,其采用单一管状锚固装置,可压缩封隔器元件和弹簧加载的可剪切棘轮封隔器锁定装置。
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公开(公告)号:US3915261A
公开(公告)日:1975-10-28
申请号:US50401074
申请日:1974-09-09
Applicant: DRESSER IND
Inventor: JETT MARION BARNEY , SPRIGGS DENNIS MITCHEL
IPC: E21B33/122 , E21B33/129 , E21B33/1295 , F16D65/02
CPC classification number: E21B33/1295 , E21B33/122 , E21B33/129 , Y10T74/2141
Abstract: A simplified and efficient dual string hydraulically actuated packer assembly is disclosed which utilizes spring-loaded, shearable, ratcheting packer lock means.
Abstract translation: 公开了一种简化且高效的双列液压驱动的封隔器组件,其利用弹簧加载的可剪切的棘轮封隔器锁定装置。
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