Amerisur Resources PLC is to spud the second well in a six-well program in Platanillo field in the Putumayo basin in Colombia after the Platanillo-3 well flowed for 30.4° gravity oil for 24 hr at the rate of 2,340 b/d, natural, on choke with 44 psi wellhead pressure.
The well encountered 52 ft of net pay in an 85-ft gross interval in U sands of the Villeta formation. Amerisur perforated the upper 26 ft of indicated net pay and used a drillstem test assembly. Two other Villeta zones may contain potential pay and are under evaluation.
Platanillo field has two producing wells, Alea-1R and Platanillo-2, on the 14,341-ha block.
The next well is to be drilled from the same Platform 9 location and will be deviated to an offset of 600 m south of Platanillo-3.
The well was shut in for pressure build-up. The company will install a permanent completion string and commence commercial production. Given the well’s high rate, Amerisur is evaluating completion options to maximize efficiency, including the installation of an electric submersible pump.
Alan Petzet | Chief Editor Exploration
Alan Petzet is Chief Editor-Exploration of Oil & Gas Journal in Houston. He is editor of the Weekly E&D Newsletter, emailed to OGJ subscribers, and a regular contributor to the OGJ Online subscriber website.
Petzet joined OGJ in 1981 after 13 years in the Tulsa World business-oil department. He was named OGJ Exploration Editor in 1990. A native of Tulsa, he has a BA in journalism from the University of Tulsa.