Plug Back

To place cement or other material in the well to seal off a completion interval, to exclude bottom water, or to perform another operation such as side-tracking or producing from another depth. The term also refers to the setting of a mechanical plug in the casing.

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


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