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

Conservation
Requirements
1) A map showing the net pay isopachs and
zero edge of the pool.
Comments
The ERCB requires this information to
confirm the pool extent. The pool’s net pay
and zero edge must reflect your actual
geological interpretation of the pool.
2) A map showing the status of each well
completed in the pool.
3) A map showing the structure of the top and
base of porosity and the initial and present
fluid interfaces.
This information is required only when the
allowable was originally assigned for
conservation reasons, and then only when
structure is pertinent to the application.
4) A map showing isobars of the pool. This is generally only required if pool
delineation is an issue.
5) Tabulations of
a) reservoir parameters,
b) the estimated initial in-place volumes of
gas and other hydrocarbons in the pool,
c) for the pool, the current rate of
production of gas, other hydrocarbons,
and water and an estimate of the
probable pool production rates under the
proposed operating conditions, and
The information referred to in 5(c) and (d) is
generally required for the entire pool only
when allowables have been set for an entire
pool for conservation reasons or when pool
delineation is an issue. When only a portion
of the pool is affected by the subject
allowable, data on just the subject well and
immediately offsetting wells are usually
sufficient.
d) for each well, the current productive
capacity, the current average production
rate, and the production rate anticipated
under the proposed operating conditions.
6) Discussions of
a) pertinent characteristics or conditions
that exist within the pool, including
geological factors, reservoir
characteristic, general or local fluid
interface movements, pressure gradients,
areal drainage, or production conditions,
Information referred to in 6(a) and (b) is
required only when the allowable was
originally assigned for conservation reasons.
3-40 • ERCB Directive 065: Resources Applications / Gas Allowable (October 2011)