会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 8. 发明授权
    • Liner and drill pipe assembly
    • 衬管和钻杆总成
    • US4898243A
    • 1990-02-06
    • US147533
    • 1988-01-25
    • Hiram E. LindseyPaul W. Cole
    • Hiram E. LindseyPaul W. Cole
    • E21B33/16E21B43/10
    • E21B43/10E21B33/16
    • A system for cementing liners in well bores where a liner and drill pipe are made up in telescopic relationship with the lower end of the drill pipe having a polished mandrel or slick pipe slidably and sealingly received in a sealing bore receptacle in the lower end of the liner at a location just above the cementing equipment. When an interconnected setting tool and liner hanger are attached to the drill pipe and liner, a continuous passage is formed by the drill pipe from the setting tool to the location below the sealing bore receptacle. The polished mandrel has an upper normally closed sleeve valve and a lower normally open check valve so that when the liner hanger is located in the well bore, the check valve can be closed for hydraulic operation of the setting tool and opened thereafter for cementing. The sleeve valve is opened at the end of the cementing operation to bypass the interior of the pipe string to the interior of the liner.
    • 一种用于在井眼中固井衬套的系统,其中衬套和钻杆与钻杆的下端伸缩关系构成,其具有可抛光的心轴或光滑管,其可滑动和密封地容纳在位于 在固井设备正上方的位置。 当连接的固定工具和衬管悬挂器连接到钻杆和衬套时,钻杆从固定工具到密封孔容器下方的位置形成连续的通道。 抛光的心轴具有上常闭套筒阀和下常开止回阀,使得当衬管悬挂器位于井筒中时,止回阀可以关闭以用于设置工具的液压操作并且随后打开用于固井。 套筒阀在固井操作结束时打开,以将管柱内部绕过衬套的内部。
    • 9. 发明授权
    • Landing collar and float valve assembly
    • 起落架和浮阀组件
    • US5058672A
    • 1991-10-22
    • US566064
    • 1990-08-13
    • Chudleigh B. Cochran
    • Chudleigh B. Cochran
    • E21B21/10E21B23/01E21B23/06E21B33/129
    • E21B33/129E21B21/10E21B23/01E21B23/06E21B33/1294
    • An assembly for installation within the end of a joint of casing or liner for use in a downhole environment where the liner or casing is disposed in the borehole which traverses earth formations. The assembly includes an annular split ring expander and an annular split ring slip element and a self-energizing packing element which has an interference fit with respect to the bore of a string of pipe. A mechanically operated setting tool has a set of nut members on a threaded mandrel which are selectively operated for setting the slip element of the assembly into a wedging engagement with the expander in the wall of a well pipe and for releasing the setting tool from the body of the assembly to leave the assembly installed within the end of a joint of casing or liner. An expander nut is threadedly coupled to the end of the body of the assembly to lock the slip member in position and the bore of the body is conformed to receive a valve and a landing collar arrangement.
    • 用于安装在壳体或衬套的接头的端部内的组件,用于井筒环境中,其中衬套或套管设置在穿过地层的钻孔中。 组件包括环形开口环膨胀器和环形开口环滑动元件以及相对于一排管的孔的过盈配合的自增力填料元件。 机械操作的固定工具在螺纹心轴上具有一组螺母构件,其被选择性地操作用于将组件的滑动元件设置成与井管壁中的膨胀器楔入接合,并且用于将定位工具从主体释放 的组件将组件安装在套管或衬套的接头的端部内。 膨胀螺母螺纹连接到组件的主体的端部,以将滑动构件锁定在适当位置,并且主体的孔被配合以接收阀和着陆轴环装置。