- 专利标题: Rotational continuous circulation tool
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申请号: US16885444申请日: 2020-05-28
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公开(公告)号: US11242717B2公开(公告)日: 2022-02-08
- 发明人: Mohammad Saud Al-Badran , Chinthaka Pasan Gooneratne
- 申请人: Saudi Arabian Oil Company
- 申请人地址: SA Dhahran
- 专利权人: Saudi Arabian Oil Company
- 当前专利权人: Saudi Arabian Oil Company
- 当前专利权人地址: SA Dhahran
- 代理机构: Bracewell LLP
- 代理商 Constance G. Rhebergen; Vivek P. Shankam
- 主分类号: E21B19/16
- IPC分类号: E21B19/16 ; E21B21/10 ; E21B34/00 ; E21B21/01 ; E21B3/02
摘要:
A tool circulates drilling fluid through and rotates a pipe string while making up or breaking out a stand of pipe. The tool includes a clad configured to grip and seal around the RCCT sub. The clad includes a body portion, an inner ring configured to selectively rotate independently, an outer ring configured to be stationary with respect to the inner ring, the outer ring having at least two annular protrusions, a first arm configured to engage with a first annular protrusion, a second arm configured to engage with a second annular protrusion, and a stinger configured to latch into the at least one side entry port and allow the sub and the drill pipe string to rotate independent of the clad. The clad is configured to avoid or prevent stuck pipe incidents.
公开/授权文献
- US20210372208A1 Rotational Continuous Circulation Tool 公开/授权日:2021-12-02
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