Contact 1-844-764-3637, the Ministry's Petroleum and Natural Gas Emergency Support Line, if a gas migration or surface casing vent flow issue is identified at a site.
Well failures that result in gas migration or surface casing vent flow are readily identified at the surface, near the wellhead, and can often be corrected through repairs.
Depending on its severity, the Ministry will direct the licensee to either:
- Repair the well immediately; or
- Monitor conditions for changes until the issue can be addressed at the time of abandonment.
Refer to the regional office map to determine the field office responsible for the area where the gas migration or surface casing vent flow issue occurred; you will be prompted for this information when you call the emergency support line.
The Guideline PNG026: Gas Migration provides further information on when to repair a well based on the type of well it is (cased for production, previously abandoned, etc.) and where the gas migration is observed.