Abstract:The plug and abandon (P&A) challenges of each well are known to be different. This paper narrates unique challenges faced during the abandonment of a land well which intersected multiple over-pressured reservoirs containing high concentration of H2S and CO2. Because zonal isolation was paramount for this project, section milling was selected to enable a rock-to-rock cement plug to restore 5 critical caprocks. Remediation of annular cement was complex because all production and intermediate casings were cem… Show more
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.