Reconstruct Oil Production History Advanced Decline Curve
Missing oil production between 1983 to 1988 estimated for Becker #1 -
completed oil history.
Production history for Becker #4 completed between 1983 to 1988 by subtraction
Becker #1 production from Becker Lease.
Reconstructed Becker #4 history also falls on a decline curve.
Oil production histories reconstructed for Wharton #1 & #2.
Oil production for Wharton #3 during 1985-89 estimated by subtracting
production from Wharton #1 & #2 from lease production.
Reconstructed production history for Wharton #3 falls on a decline curve
and indicates intermittent stimulations.
Inferences from Decline Curve Analyses
Oil production histories were completed using initial production (IP)
rates and barrel test data recorded since 1989.
Reconstructed oil production data from wells in a lease when added together
closely approximated recorded lease production.
Available production data, for most of the productive life of each well,
could be modeled by a decline curve. This means that bottom hole producing
pressures (Pwfs) at the wells remained mostly unchanged.
Recorded production data at some of the wells indicated that wells underwent
A very short transient decline is visible when the recorded production
data is plotted on Fetkovich’sType Curve. This is indicative of low
effective permeabilities existing in the reservoir.
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Last updated July 2003