Regulatory Intelligence
Can operators request a variance from standard abandonment requirements?
Category:
Well Abandonment
Research Basis
Archive Period
2017-2022
Records Reviewed
6
Primary Topics
Directive 020; Well Abandonment; Non-Routine Abandonment; Variance Requests; Zonal Abandonment; Closure Programs
Current Reference
AER Directive 020
Common Question
Can operators request a variance from standard abandonment requirements?
Archive Findings
Yes. The archive supports the conclusion that abandonment requirements are not always applied as a single mechanical recipe. Historical records include both a non-routine abandonment request process and a dedicated well abandonment variance request form, indicating that operators may seek approval for an alternative abandonment approach where the standard process does not fit the well-specific situation. The most useful lesson from the folder is the type of information the regulator expected to see. The variance request material does not treat a variance as a simple administrative exception. It asks for the proposed non-routine abandonment program, potential risks, cementing details, casing details, formation tops, perforation intervals, whether the well has SCVF/GM or casing integrity issues, whether nearby offset activity exists in the same zone, and whether supporting logs, porous-zone interpretations, hydrogeologist reports, wellbore schematics, and abandonment plans are required. That tells a stronger story than simply saying variances are allowed. The archive indicates that a variance is fundamentally a technical submission. The operator must explain the proposed alternative, identify the risks, and provide enough well-specific evidence to demonstrate that the alternative can still meet the intent of the abandonment requirements.
Engineering Insight
The practical engineering lesson is that a variance request should be built around the wellbore problem, not around the desire to avoid a standard requirement. A strong request explains why the prescribed abandonment method is not suitable for the specific well and then shows how the proposed alternative will still protect groundwater, isolate formations, manage casing integrity risks, and maintain long-term well integrity. Examples supported by the folder include situations involving non-routine abandonment programs, zonal abandonment questions, casing or plug integrity concerns, well-specific construction details, and requests requiring additional supporting technical information. These are exactly the kinds of details that make the difference between a weak variance request and an engineering-based variance request.
Current Guidance
Current abandonment requirements and variance expectations should be reviewed against the current version of AER Directive 020 and the current AER variance submission process. Historical records provide useful context, but the current directive and current AER submission requirements always govern.
