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

Data requirements for wells with production commingled in the wellbore under the DE
process include those set out in Sections 11.005, 11.070, 11.102, and 11.140 of the OGCR
and in Directive 040: Pressure and Deliverability Testing Oil and Gas Wells—Minimum
Requirements and Recommended Practices.
The data collection requirements for gas production from coals and shales are set out in
Sections 11.005, 11.040, 11.070, 11.102, 11.140, and 11.145 of the OGCR and in Directive
040. Section 7.025 of the OGCR requires control wells for the production of coalbed methane
(CBM) and shale gas. These control well requirements must be met by all licensees that have
gas production from coals or shales.
3.1.5.1 Requirements for Commingling of Gas Production in a DE
The following are the specific requirements set out in Section 3.051(1) of the OGCR that
must be met before nonassociated gas production may be undertaken without segregation in
the wellbore under the DE process:
1) There are no completions above or below the stratigraphic interval of the DE.
2) Anticipated or actual water production is less than 5.0 m 3 /month if there are completions
above the base of the BGWP.
3) The top of the completions is more than 25 m below the base of any water well within
600 m of the producing well.
4) There is no H 2 S in the production stream.
5) The licensee has resolved any concerns of lessors or lessees of the mineral rights whose
rights may be directly and adversely affected by the unsegregated production.
6) The reservoir pressure of any interval completed for production does not exceed 90 per
cent of the fracture pressure of any other interval completed for production.
7) There is no production of gas associated with an oil accumulation.
Requirements respecting notification of commingling in accordance with the DE process are
included in Section 3.1.3.5. For other additional information, refer to the decision tree in
Figure 3.2 and the explanatory notes in Section 3.1.7.
3-8 • ERCB Directive 065: Resources Applications / Commingled Production (October 2011)