ConocoPhillips
Casing expansion for well plugging
Last updated:
Abstract:
The present invention discloses a method of plugging a well that relies on casing expansion to plug uncemented casing sections, rather than milling out the casing or perforate wash and cement (PWC).
Status:
Grant
Type:
Utility
Filling date:
14 Nov 2016
Issue date:
7 Jan 2020