Downhole tool
    1.
    发明授权
    Downhole tool 有权
    井下工具

    公开(公告)号:US07766084B2

    公开(公告)日:2010-08-03

    申请号:US10595878

    申请日:2004-11-17

    IPC分类号: E21B34/10

    摘要: A downhole tool (10) comprises a body (12) defining a bore. The body includes a valve arrangement (18) including flow ports (24) in the wall of the body. The ports may be opened or closed. In addition, a variable flow restriction (30) is provided in the bore (14), the degree of restriction tending to decrease as flow across the restriction increases. The variable flow restriction may be utilized to actuate the valve arrangement.

    摘要翻译: 井下工具(10)包括限定孔的主体(12)。 主体包括阀体装置(18),其包括在主体的壁中的流动端口(24)。 端口可以​​打开或关闭。 此外,在孔(14)中设置可变流量限制(30),随着限制流动的流动,限制程度趋于减小。 可变流量限制可用于致动阀装置。

    TOP FILLING TUBING
    2.
    发明申请
    TOP FILLING TUBING 有权
    顶部填充管

    公开(公告)号:US20100012324A1

    公开(公告)日:2010-01-21

    申请号:US12304732

    申请日:2007-06-11

    IPC分类号: E21B43/25 E21B33/13

    摘要: A method of top-filling a drill pipe string comprises injecting fluid into the upper end of the string. Apparatus for use in top-filling a drill pipe string comprises an injector adapted to co-operate with the upper end of a drill pipe string, whereby fluid may be pumped through the injector and into the string.

    摘要翻译: 钻井管柱的顶部填充方法包括将流体注入柱的上端。 用于顶部填充钻杆管柱的装置包括适于与钻杆管柱的上端协作的喷射器,由此可以将流体泵送通过喷射器并进入管柱。

    Top filling tubing
    3.
    发明授权
    Top filling tubing 有权
    顶部填充管

    公开(公告)号:US07975766B2

    公开(公告)日:2011-07-12

    申请号:US12304732

    申请日:2007-06-11

    IPC分类号: E21B19/00

    摘要: A method of top-filling a drill pipe string comprises injecting fluid into the upper end of the string. Apparatus for use in top-filling a drill pipe string comprises an injector adapted to co-operate with the upper end of a drill pipe string, whereby fluid may be pumped through the injector and into the string.

    摘要翻译: 钻井管柱的顶部填充方法包括将流体注入柱的上端。 用于顶部填充钻杆管柱的装置包括适于与钻杆管柱的上端协作的喷射器,由此可以将流体泵送通过喷射器并进入管柱。