Petrolifera Petroleum Limited reports a significant upward revision of the previously calculated absolute open flow (AOF) test rate for the Cienaga de Oro (CDO) Formation in the Brillante SE-1X well, drilled on its 100% owned Sierra Nevada License in Colombia.

The newly calculated AOF is 18.0 MMcf/d, a rate 5.5 MMcf/d greater than the previous estimate. The increase from the previous estimate resulted from recovery of the bottom-hole pressure data recorded during the flow and shut-in periods of the production test, which was conducted during the period from April 17, 2010 through April 20, 2010, resulting in a more accurate AOF estimation. The previous estimate used assumptions based upon information available at the time of the press release to extrapolate surface pressures to bottom-hole conditions.

As previously announced, the measured rate of the drill stem test ("DST") conducted between 3,138 feet - 3,350 feet subsurface was 8.4 MMcf/d of dry natural gas, with no water, through a 48/64th inch choke with surface pressure at 579 pounds per square inch ("psi").

Current plans to suspend the well until a permit to conduct a long-term test is received remain unchanged.

Tags: Petrolifera Petroleum Limited