Upstroke jar
    1.
    发明授权
    Upstroke jar 失效
    水ke

    公开(公告)号:US5267613A

    公开(公告)日:1993-12-07

    申请号:US859581

    申请日:1992-03-27

    IPC分类号: E21B31/107 E21B31/07

    CPC分类号: E21B31/107

    摘要: An upstroke jar for use in downhole operations in an oil or gas well and for connection between a wireline and a tool comprises a casing defining an anvil and for connection to the tool, a hammer slidable axially within the casing for impacting with the anvil and for connection to the wireline, a hammer holder, a spring arrangement located between an abutment on the casing and an abutment on the hammer holder for compression on an operative movement of the hammer holder as a consequence of tension on the wireline and a connector releasable to free the hammer from the holder at the completion of the operative movement so that the freed hammer may impact with the anvil. The compression load on the spring present at the release is dependant on the extent of the operative movement from a rest position and the degree of compression of the spring means to obtain the operative movement. Adjustment of the release load present at the instant the hammer part is released by the connector is provided.

    摘要翻译: 用于在油井或气井中进行井下作业并用于钢丝绳和工具之间的连接的上冲罐包括限定砧座并用于与工具连接的壳体,在壳体内可轴向滑动的锤,用于与砧座冲击并用于 连接到电缆,锤保持器,位于壳体上的邻接件之间的弹簧装置和锤保持器上的邻接件,用于由于电缆上的张力而导致锤保持器的可操作运动压缩,以及可释放以释放的连接器 在完成操作运动时从持有人的锤子,使得释放的锤可能与砧座碰撞。 存在于释放中的弹簧上的压缩载荷取决于从静止位置的操作运动的程度和弹簧装置的压缩程度以获得操作运动。 提供了由连接器释放锤部件瞬间释放负载的调整。

    Pack-off tool
    2.
    发明授权
    Pack-off tool 失效
    打包工具

    公开(公告)号:US5467822A

    公开(公告)日:1995-11-21

    申请号:US199236

    申请日:1994-02-28

    申请人: Klaas J. Zwart

    发明人: Klaas J. Zwart

    摘要: A pack-off tool comprises a main tubular body including an expandable sealing element located between two non-expandable ring members and being mounted on a mandrel and in sealing engagement therewith at axially spaced locations. The tubular body is axially compressible into a radially extended configuration for sealing engagement with a bore wall. A communicating bore extends through the body between the sealing locations. In use, a high pressure on one side of the tool pushes between the high pressure side of the tubular body and the bore wall, through the communicating bore and into a space between the tubular body and the mandrel, and tends to push the other, lower pressure side of the body outwardly into tighter sealing engagement with the bore wall.

    摘要翻译: PCT No.PCT / GB92 / 01568 Sec。 371日期1994年2月28日 102(e)1994年2月28日PCT PCT 1992年8月27日PCT公布。 出版物WO93 / 05267 日期:1993年3月18日。包装工具包括主管状体,其包括位于两个不可膨胀环构件之间的可膨胀密封元件,并且安装在心轴上并与轴向间隔开的位置密封接合。 管状体可轴向压缩成径向延伸的构型,用于与孔壁密封接合。 连通孔在密封位置之间延伸穿过主体。 在使用中,工具一侧的高压在管状主体的高压侧和孔壁之间通过连通孔推入管状主体和心轴之间的空间,并且倾向于推动另一侧, 身体的较低压力侧面与密封壁紧密的密封接合。

    Downhole running system & method for setting a downhole tool in a bore
    3.
    发明授权
    Downhole running system & method for setting a downhole tool in a bore 失效
    井下运行系统及其在钻孔中设置井下工具的方法

    公开(公告)号:US5538082A

    公开(公告)日:1996-07-23

    申请号:US392066

    申请日:1995-02-22

    申请人: Klaas J. Zwart

    发明人: Klaas J. Zwart

    IPC分类号: E21B23/02

    CPC分类号: E21B23/02

    摘要: A downhole running system for use in setting a downhole tool in a bore includes a running tool comprising: radially extending members for holding the tool at a desired location in a bore and being selectively configurable, in a first configuration, to permit running the tool in through a restriction in a bore and, in a second configuration, to prevent passage of the tool through a restriction and to engage the wall of a bore to permit manipulation of the tool against a fixed point in the bore; an arrangement for releasably mounting a downhole tool on the running tool; and an arrangement for setting the downhole tool.

    摘要翻译: 一种用于在钻孔中设置井下工具的井下运行系统包括运行工具,其包括:径向延伸的构件,用于将工具保持在孔中的期望位置,并且在第一构型中可选择性地配置,以允许将工具运行 通过孔中的限制,并且在第二构造中,以防止工具通过限制物通过并接合孔的壁以允许将工具操纵在孔中的固定点上; 用于将井下工具可释放地安装在所述行进工具上的装置; 以及用于设置井下工具的布置。

    Retrievable bridge plug and a running tool therefor
    4.
    发明授权
    Retrievable bridge plug and a running tool therefor 失效
    可检索桥塞及其运行工具

    公开(公告)号:US5366010A

    公开(公告)日:1994-11-22

    申请号:US129100

    申请日:1993-10-05

    申请人: Klaas J. Zwart

    发明人: Klaas J. Zwart

    摘要: A tool for downhole use in oil and gas wells comprises a number of relatively-axially-slidable members. Upper and lower toothed locking slips are mounted on respective upper and lower members and a resilient ring member is mounted on a further member between the locking slips and is compressible into sealing engagement with a bore wall on relative movement of the slips towards each other. The locking slips are moved into radially extended bore wall engaging positions by relative axial movement of the respective members and the central member. The upper and lower locking slips are extended by application of downward force to the central member and the upper member, respectively, and the ring member is compressed into sealing engagement with the bore wall by application of an upward force to the lower member.

    摘要翻译: PCT No.PCT / GB92 / 00605 Sec。 371日期:1993年10月5日 102(e)日期1993年10月5日PCT提交1992年4月3日PCT公布。 公开号WO92 / 17681 日期为1992年10月15日。用于油气井井下使用的工具包括多个相对轴向滑动的构件。 上和下齿形锁定滑块安装在相应的上部和下部构件上,并且弹性环构件安装在锁定滑动件之间的另一个构件上,并且在滑动件相对于彼此的相对运动时可压缩成与孔壁密封接合。 通过相应构件和中心构件的相对轴向移动,锁定滑块移动到径向延伸的孔壁接合位置。 上下锁定滑块分别通过向下施加向中心构件和上构件而延伸,并且环构件通过向下构件施加向上的力而被压缩成与孔壁密封接合。