- 专利标题： Helical coil annular access plug and abandonment
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申请号： US17829847申请日： 2022-06-01
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公开(公告)号： US11905789B2公开(公告)日： 2024-02-20
- 发明人: Randall S. Shafer
- 申请人： ConocoPhillips Company
- 申请人地址： US TX Houston
- 专利权人： CONOCOPHILLIPS COMPANY
- 当前专利权人： CONOCOPHILLIPS COMPANY
- 当前专利权人地址： US TX Houston
- 代理机构： Boulware & Valoir, PLLC
- 分案原申请号： US15918393 2018.03.12
- 主分类号： E21B33/134
- IPC分类号： E21B33/134 ; E21B33/12 ; E21B29/02 ; E21B29/00
摘要：
A method for creating access to annular spacing during P&A operations is described. Specifically, helical coils are cut into one or more casings before the plugging material is set. The plugging material is able to exit the helical coils, forming multiple, small rock-to-rock seals.
公开/授权文献
- US20220290527A1 HELICAL COIL ANNULAR ACCESS PLUG AND ABANDONMENT 公开/授权日：2022-09-15
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