Definition(s)
Plug and Abandon
Placement of a cement plug or plugs in a well, in which no future utility has been identified, to seal the entire wellbore against fluid migration, and protect fresh water aquifers from contamination.
Source: API BULLETIN E3, Environmental Guidance Document: Well Abandonment and Inactive Well Practices for U.S. Exploration and Production Operations, First Edition, January 1993 (Reaffirmed June 2000). Global Standards