Directive 020: Well Abandonment
Release Date: April 21, 2021
Effective date: April 21, 2021
Replaces previous edition issued February 4, 2021
Released with Bulletin 2021-07.
Purpose of this Directive
The Alberta Energy Regulator (AER) Directive 020: Well Abandonment details the minimum requirements for abandonments, casing removal, zonal abandonments, and plug backs as required under section 3.013 of the Oil and Gas Conservation Rules.
The objective of a well abandonment is to cover all nonsaline groundwater (water with total dissolved solids less than 4000 milligrams per litre [mg/l]) and to isolate or cover all porous zones.
All open-hole and cased-hole abandonments must be conducted in accordance with the requirements in this directive.
- Well status (set through Petrinex) and licence status (set through the Digital Data Submission system) should align. For a list of valid combinations, refer to the well/licence status matrix link under Attachments below.
The table below sets out the designated information submission system to use when submitting information under Directive 020. In addition to using the designated information submission system indicated below, nonroutine requests and the required supporting information must also be submitted to @email.
|Item (section of directive)||Designated Information Submission System|
|Obtaining approval for nonroutine abandonment operations (section 2.1)||DDS > AER > Submissions > Licence Abandonment > Non-routine Well Abandonment|
|AER notification (section 2.2)||DDS > AER > Notifications > Field Surveillance|
|AER reporting requirements – surface casing vent flow/ gas migration (section 2.3)||DDS > AER > Incidents > Surface Casing Vent Flow/Gas Migration|
|AER reporting requirements – casing failure (section 2.3)||DDS > AER > Incidents > Casing Failure|
|AER reporting requirements – surface abandonments (section 2.3)||OneStop > Close > Abandonment > Wells|
|Leaking wells/Lowering casing stubs (section 3.3)||OneStop > Close > Abandonment > Wells|
|Gas migration testing for open- and cased-hole wells (section 7.1)||DDS > AER > Incidents > Surface Casing Vent Flow/Gas Migration|
|Fluid level test for open-hole wells (section 7.2)||DDS > AER > Submissions > Licence Abandonment > Non-routine Well Abandonment|
|Surface casing vent flow test for cased-hole wells (section 7.3)||DDS > AER > Incidents > Surface Casing Vent Flow/Gas Migration|
|Surface abandonment (section 8)||OneStop > Close > Abandonment > Wells|