Colombia: Oil output building at Las Maracas field

Las Maracas field in Colombia’s Llanos basin is producing at more than 4,600 b/d of oil with minimal water including test output from the Las Maracas-4 well, said Petroamerica Oil Corp., Calgary, which has a 50% participating interest in the Los Ocarros block.

Las Maracas-4 is contributing 1,500 b/d of oil on an electric submersible pump, and its oil rate is expected to increase in a week as the company eliminates site congestion caused by arrival of the Tuscany 109 rig for development drilling and the removal of the workover rig used to complete and test the well.

Las Maracas-4 flowed natural for 88 hr from a 12-ft perforated interval in the Gacheta formation. During the test, the well produced 30° gravity light oil at an average 1,400 b/d with short-term peaks of more than 1,600 b/d. On completion with the ESP, it produced at restricted rates of 1,500 b/d with 2.3% water cut on a 23/64-in. choke and a minimum pump frequency of 28 hz.

Meanwhile, the Las Maracas-2 sidetrack is making 1,150 b/d of oil from the Mirador formation, and Las Maracas-3 and Las Maracas-4 are producing 2,000 b/d and 1,500 b/d, respectively, from the Gacheta.

The Tuscany 119 rig is drilling the La Casona-1 exploratory well on the El Eden block. Tuscany 109 rig is being mobilized to drill Las Maracas-5 and Las Maracas-6 and a contingent water disposal well in October.

Block operator Cepcolsa has transferred its 50% participating interest to Parex Resources Colombia Ltd. Sucursal, which is still pending approval by Colombia’s National Hydrocarbons Agency.

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