Petroamerica Oil Corp. has successfully tested and completed its Las Maraqcas-6 well drilled on the Las Maracas Field in the Llanos Basin of Columbia, the company announced.
According to the release, the well has successfully tested 29 degree API oil from a new reservoir interval, the Une Formation, at rates of approximately 600 barrels of oil per day. The Las Maracas Field has now produced oil from three different reservoir intervals, the Mirador, Gacheta and Une Formations. The well has been completed with an electro-submersible pump and is now producing from the main middle Gacheta sand interval at a rate of approximately 1,850 barrels of oil per day under natural flow and less than 0.5% water cut.
The petrophysical evaluation of the wireline logs indicates a total net oil pay of approximately 31 m (100 ft). Of this total amount, 8 m (25 ft) are in the Mirador Formation, 16 m (53 ft) in the producing middle Gacheta sand, 3 m (11 ft) in the lower Gacheta and 4 m (12 ft) in the Une Formation.
A flow test was conducted over the Une for a 15-hour period with the choke fully open. The Une interval produced light oil (29 degree API) under natural flow from a 1-m (4-ft) perforated interval, at a stabilized rate of approximately 600 barrels of oil per day and 1.5% water-cut at the end of the test. The average oil rate following fluid unloading was 642 barrels of oil per day, with short-term peaks reaching more than 700 barrels of oil per day.
The rig has now been skidded and is currently drilling the Las Maracas-7 well from the same surface location. At Jan 1, Las Maracas-7 had reached 3,717 m (12,195 ft) measured depth.
Petroamerica holds a 50% participating interest in the Los Ocarros Block where the Las Maracas Field is located.
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