Apparatus and method utilizing a coiled tubing injector for removing or
inserting jointed pipe sections
    1.
    发明授权
    Apparatus and method utilizing a coiled tubing injector for removing or inserting jointed pipe sections 失效
    使用连续油管注射器去除或插入连接管段的装置和方法

    公开(公告)号:US5975203A

    公开(公告)日:1999-11-02

    申请号:US30263

    申请日:1998-02-25

    IPC分类号: E21B19/22 E21B19/08

    CPC分类号: E21B19/22

    摘要: Apparatus and method for pulling or inserting jointed pipe sections (18) having upset ends (20) within a well utilizing a coiled tubing injector (26). The coiled tubing injector (26) has a pair of opposed endless chains (50, 52) including gripper blocks (58) for gripping the pipe sections (18). An axial gap (G) is provided in chains (50, 52) between adjacent gripper blocks (58) to receive the upset ends (20). To align accurately upset ends (20) with gap (G), a sensing mechanism (100, FIGS. 11 and 12) is provided to sense the location of upset end (20) and a sensing mechanism (110, 112, FIGS. 13 and 14) is provided to sense the location of gap (G). An operator in response to signals from the sensors accurately aligns upset ends (20) with gap (G).

    摘要翻译: 利用连续油管注射器(26)将具有镦粗端(20)的接合管段(18)拉入或插入井内的装置和方法。 连续油管注射器(26)具有一对相对的环形链(50,52),包括用于夹持管段(18)的夹持块(58)。 在相邻的夹持块(58)之间的链条(50,52)中提供轴向间隙(G),以接收镦粗端部(20)。 为了精确地将凹陷端(20)与间隙(G)对准,提供感测机构(100,图11和12)以感测镦粗端(20)的位置和感测机构(110,112,图13 和14)用于感测间隙(G)的位置。 响应于来自传感器的信号的操作者将凹陷端(20)与间隙(G)精确对准。