Well Monitoring Programs
The API inactive well program describes monitoring that could be used by an operator for wells in the four fluid migration potential categories. The well monitoring program requirements and monitoring frequencies increase as the fluid migration potential increases.
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