Directive 065 - Energy Resources Conservation Board

Requirements Comments
vi) the scale of the log readings, and
d) a tabulation of the interpreted net pay,
porosity, and water saturation for each well
in the pool, along with the cutoffs,
methodology, formulas, and constants used.
5) Data showing that the well is completed and
capable of producing at an economic rate from
the pool to which the common purchaser order
is to apply.
6) An evaluation of the oil and gas reserves for the
pool and for your lands, including
a) an estimate of the initial oil volume and gas
volume in place,
b) an estimate of the oil and gas recovery
factors,
c) a description of the methods used in
determining (a) and (b) above (i.e., material
balance, volumetric analysis, model study,
a comparison of analog pools), and
d) the supporting data used in determining (a)
and (b) above and the sources of the data
(i.e., pressure/volume/temperature [PVT]
properties and source, pressure data and
source).
7) A discussion of drainage, including
a) evidence showing that the reserves
underlying your lands have been drained
subsequent to the completion of your well
in the pool,
b) an estimate of the total amount of drainage
that has occurred from your lands since
your well was completed in the pool,
together with details of how the drainage
was calculated, and
These data allow the ERCB to assess your
mapping and reserves calculations requested in
the following item. In addition, these data may
be used to allocate production (see item 13).
The reserves estimates confirm that there are
reserves available for production.
You should provide all data used in obtaining
the reserves estimates so that your analysis can
be duplicated.
Drainage should be confirmed by summarizing
at least two pressure tests obtained from the
well.
ERCB Directive 065: Resources Applications / Common Purchaser (March 2012) • 1-9