发明申请
- 专利标题: FLOW CONTROLLER FOR USE IN DRILLING OPERATIONS.
- 专利标题(中): 流量控制器用于钻井作业。
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申请号: US14771960申请日: 2014-03-13
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公开(公告)号: US20160290078A1公开(公告)日: 2016-10-06
- 发明人: Rusty Church
- 申请人: GROUPE FORDIA INC.
- 国际申请: PCT/IB2014/059762 WO 20140313
- 主分类号: E21B21/10
- IPC分类号: E21B21/10 ; E21B49/08 ; E21B47/00 ; E21B34/08 ; E21B12/00
摘要:
A system (10) for drilling a borehole (14) in a subterranean formation (16) containing a fluid (18), comprising: an outer tube (24) defining an outer tube distal end (26) configured for attaching a drill bit (12) thereto and a flow controller receiving section (27) spaced apart therefrom; a flow controller (28) including a flow controller body (30) defining body proximal and distal ends (32 and 34) and securable to the outer tube (24) in the flow controller receiving section (27); and a drilling accessory (36) insertable in the outer tube (24) and through the flow controller (28). The flow controller (28) is movable between open and closed configurations. In the open configuration, the flow controller (28) allows passage of the drilling accessory (36) therethrough. In the closed configuration, the flow controller (28) hinders flow of the fluid therethrough towards the borehole proximal end (20) when the flow controller (28) is located closer to the borehole proximal end (20) than the fluid (18).
公开/授权文献
- US09909375B2 Flow controller for use in drilling operations 公开/授权日:2018-03-06
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