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

Requirements
Comments
3) Discussion on the stage of depletion of the
recipient pool.
4) A statement on whether the pool contains an
oil-water (o/w) or gas-water (g/w) contact.
If it does, are the injection perforations
below that contact?
If disposal occurs into a depleted pool or
below the oil-water or gas-water contact, the
negative impact of this disposal on ultimate
recovery from the pool would usually be
minimal.
5) An explanation of why the proposed
disposal would not be detrimental to
ultimate hydrocarbon recovery from the
pool.
6) Discussion on whether the proposed
injection would have an impact on any
producing wells in the pool. If it would,
provide details. If it would not, support your
view.
7) If ERCB-approved water disposal is
currently occurring in the pool, a list of
those disposal wells and comments as to
how the proposed disposal is compatible
with the current disposal locations.
Multiple disposal wells in a pool require
careful placement in order to avoid
overinjection in any one part of the pool and
to avoid trapping losses.
8) Discussion on whether there is an enhanced
recovery scheme in the subject pool. If there
is, explain why the proposed disposal
cannot be incorporated into the scheme and
why or how the proposed disposal is
compatible with the current injection.
9) A net pay isopach map of the pool,
including both oil and gas if there is an
associated pool.
10) If pool delineation or fluid interface
locations are based on structural
interpretation, a structure contour map of the
pool and offsetting area.
4-4 • ERCB Directive 065: Resources Applications / Class I-IV Disposal (October 2011)