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

Requirements
18) Identification of the existing or proposed
enhanced recovery scheme.
19) For any oil pools involved,
a) confirmation that the oil pools have a
common rate control or, alternatively, a
separate application requesting a change
in rate control has been submitted to the
ERCB,
b) if there is associated gas, confirmation
that approval of concurrent production
has been obtained or that a separate
application requesting concurrent
production approval has been submitted
to the ERCB,
c) a discussion respecting whether the oil
pool involved contains or has potential
for an enhanced oil recovery scheme and,
if so, the possible effect of approval for
commingling of production on the
effectiveness of such a scheme, and
d) an evaluation of the oil and gas reserves
for each pool, including
i) an estimate of the initial oil volume
and gas volume in place,
ii) an estimate of the oil and gas recovery
factors,
iii) a description of the methods used in
determining (i) and (ii) above (e.g.,
material balance, volumetric analysis,
model study, a comparison of analog
pools), and
iv) the supporting data used in
determining (i) and (ii) above and the
sources of the data (e.g.,
pressure/volume/temperature [PVT]
properties and source, pressure data
and source).
20) For any gas pool located in an oil sands
area,
a) confirmation that there is no shut-in
order for the subject well and zones
arising from a gas/bitumen proceeding
and that the wells and zones are not
subject to any upcoming gas/bitumen
proceeding,
b) a statement that the well involved
would be producing in accordance with
ERCB Interim Directive (ID) 99-1, and
Comments
This must include the approval number of
any existing scheme or the application
number or details of a proposed scheme.
Production from oil pools with different rate
controls may not be commingled.
Separate applications must be submitted for
commingling approval and for concurrent
production and good production practice.
Commingling of production in the wellbore
might not be an optimum strategy when it
may hamper the effectiveness of an enhanced
recovery scheme.
For wells drilled and/or completed in a
defined oil sands strata after July 1, 1998,
you must submit an application and obtain
approval from the ERCB before any gas,
other than solution gas, may be produced.
In an area where pool performance and
pressure data are scarce (e.g., low drilling
density, limited production), the ongoing
collection of zonal data may prove crucial to
future decisions on gas production and to the
re-evaluation of past gas production
ERCB Directive 065: Resources Applications / Commingled Production (October 2011) • 3-29