ConocoPhillips
HELICAL COIL ANNULAR ACCESS PLUG AND ABANDONMENT
Last updated:
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.
Status:
Application
Type:
Utility
Filling date:
6 Feb 2020
Issue date:
4 Jun 2020