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Since 2006, the AER has approved disposal operations in the Cardium Sand (the boundaries of which are shown in the attached map), which is in the Elmworth Field. Starting January 2015, the AER has observed two instances of localized over pressurization of the Cardium Sand and one of those instances resulted in containment loss at an offset well.
The AER recognizes the difficulties disposal operators may experience in achieving conclusive injectivity tests. The AER also recognizes that certain disposal fluids may be incompatible with the Cardium Sand. Therefore, operators planning to dispose of fluids in this area should be aware that we may impose one or more of the following conditions when approving disposal schemes in the area defined by the map:
For more information, please call the Customer Contact Centre at 1-855-297-8311, or email firstname.lastname@example.org.
<original signed by>
Andrew MacPherson, P.Eng.
Acting VP Authorizations