Directive 065: Resources Applications for Oil and Gas Reservoirs ...

YES means that your pool interpretation differs from that of the ERCB in a manner that could
impact the ER approval. Significant differences in pool delineation must be dealt with in
advance of making an ER scheme application. However, an exception may be where the
proposed approval area is larger than the Pool Order boundary due to wells not yet being
evaluated by the ERCB.
NO means that your pool interpretation differs from that of the ERCB in a manner that does
not impact the ER approval. For example, the recognized differences are significantly outside
of the proposed approval area.
If the proposed approval area extends beyond the ERCB’s Pool Order boundary for the
subject pool or your interpretation of pool extent does not coincide with the ERCB’s Pool
Order boundary for the subject pool, an explanation of the difference and a discussion of why
this difference is not pertinent to the proposed ER scheme must be provided.
Scheme Details
16) Is the scheme area currently administered under good production practice (GPP)?
YES means that all of the wells within the proposed approval area have been granted GPP.
NO means that some or all of the wells within the proposed approval area are subject to a
prescribed maximum rate limitation (MRL) or that the proposed scheme is in a gas pool.
A copy of the most recent MRL Order can be found on the ERCB’s Web site.
17) Will produced gas from the ER scheme area be conserved, in accordance with Directive
060 requirements?
The ERCB expects that gas conservation in accordance with Directive 060 is occurring. See
Directive 060 for further information.
18) What is the proposed voidage replacement ratio (VRR), on a monthly basis, for the
scheme?
The ERCB normally specifies a VRR of 1.0 to fully maintain reservoir pressure. If the
VRR will not be 1.0, provide a technical justification in the Application attachment, in
accordance with Directive 065.
Specify the proposed monthly VRR for the scheme. The VRR should reflect the injection into
and production from the total scheme area. Technical justification for a VRR other than 1.0
must be provided, along with the reason(s) for the over- or under-injection and its impact on
scheme recovery. The ERCB will normally specify a VRR as a condition of the approval.
19) Is or will any gas-cap gas be produced from the subject pool during the operation of the
ER Scheme?
If yes, include a discussion on the potential for fluid migration into the gas cap in the
Application attachment, in accordance with Directive 065.
YES means that gas-cap gas is or will be produced from the pool, either within or outside of
the scheme area, during the period that the ER scheme is operational.
ERCB Directive 065: Resources Applications / Enhanced Recovery Scheme (October 2011) • 2-13