Invention Grant
- Patent Title: Helical coil annular access plug and abandonment
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Application No.: US16784082Application Date: 2020-02-06
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Publication No.: US11274518B2Publication Date: 2022-03-15
- Inventor: Randall S. Shafer
- Applicant: ConocoPhillips Company
- Applicant Address: US TX Houston
- Assignee: ConocoPhillips Company
- Current Assignee: ConocoPhillips Company
- Current Assignee Address: US TX Houston
- Agency: Boulware & Valoir
- Main IPC: E21B33/134
- IPC: E21B33/134 ; E21B33/12 ; E21B29/02 ; E21B29/00
Abstract:
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.
Public/Granted literature
- US20200173251A1 HELICAL COIL ANNULAR ACCESS PLUG AND ABANDONMENT Public/Granted day:2020-06-04
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