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

Table 3.1 Notification Requirements for Commingling Applications
You must send notice of the proposed
If you are applying for commingling because
commingling at minimum to
1) the proposed commingling is for a situation where
• there is actual or anticipated water production equal
to or greater than 5 m 3 /month in a well with
perforations above the base of groundwater
protection (BGWP),
• there are unresolved equity issues with respect to
the proposed commingling, or
• there is a water well within a 600 m radius with a total
depth less than 25 m from the top of the perforations
of the well proposed for commingling.
2) the proposed commingling is for a situation where
• the reservoir pressure of a pool or interval proposed
for commingling exceeds 90 per cent of the lesser of
the closure or breakdown fracture pressure of one of
the other pools or intervals proposed for
commingling, or
• the well is in a designated oil sands area or is in a
pool overlapping a designated oil sands area.
3) the proposed commingling is for a situation where
• the commingled stream contains H 2 S,
• the commingled stream contains oil, associated gas,
and/or nonassociated gas,
• there are two or more oil pools with production
greater than 3 m 3 /day from any well in any pool,
• there is a pool(s) subject to an existing or proposed
enhanced recovery scheme, or
• commingling of production would address an
operational issue not specifically detailed in this
directive.
• well licensees of nonabandoned wells in the
standard 1 DSU where the subject well is located
and in the eight standard DSUs offsetting the
subject well,
• Freehold lessors in the standard DSU where the
subject well is located and in the eight standard
DSUs offsetting the subject well, and
• the owner(s) of water well(s) within the 600 m
radius and 25 m depth.
• well licensees of nonabandoned wells in the area
of the smaller of the pools proposed for
commingling and in the standard DSUs offsetting
the smaller of the pools, 2 or if the smaller pool is
a single-well pool, in the standard DSU where the
subject well is located and in the eight standard
DSUs offsetting the subject well, and
• Freehold lessors in the area of the smaller of the
pools proposed for commingling and in the
standard DSUs offsetting the smaller of the pools,
or if the smaller pool is a single-well pool, in the
standard DSU where the subject well is located
and in the eight standard DSUs offsetting the
subject well.
• well licensees of nonabandoned wells in the
pools proposed for commingling, 3 and
• Freehold lessors in the area of the smaller of the
pools proposed for commingling and in the
standard DSUs offsetting the smaller of the pools,
or if the smaller pool is a single-well pool, in the
standard DSU where the subject well is located
and in the eight standard DSUs offsetting the
subject well.
4) the proposed commingling is for an area. • well licensees of nonabandoned wells in the area
of application and in the standard DSUs offsetting
the area of application, and
• Freehold lessors in the area of application and in
the standard DSUs offsetting the area of
application.
1
For a gas well, a standard DSU is one section; for an oil well, a standard DSU is one quarter section. If the proposed commingling
mixes oil and gas, notice must be provided for the larger DSU involved.
2
Area of pool as defined by ERCB, or if the ERCB has not defined the pool when the notice is provided, the area of the pool as
interpreted by the applicant. The ERCB may request the applicant to provide notice to additional parties if during the evaluation of
the application the ERCB interprets the pool area to be larger than interpreted by the applicant.
3
If a pool involved is extremely large, the applicant must make a judgement as to what area of the pool should be covered in the
notification. This judgement would involve an assessment of which parties might be impacted by the proposed commingling. The
ERCB may request the applicant to provide notice to additional parties if the ERCB considers that insufficient notice was provided.
3-6 • ERCB Directive 065: Resources Applications / Commingled Production (October 2011)