Pacific Stratus details Colombian finds

Pacific Stratus Energy Ltd., Toronto, started production tests at a Llanos basin multizone oil discovery and reported final drillstem test results at a gas discovery in the Lower Magdalena basin in Colombia.

Mar 26th, 2007

By OGJ editors
HOUSTON, Mar. 26 -- Pacific Stratus Energy Ltd., Toronto, started production tests at a Llanos basin multizone oil discovery and reported final drillstem test results at a gas discovery in the Lower Magdalena basin.

The company, operator of the Moriche Block, said the Mauritia Norte-1 wildcat went to 10,000 ft TMD and cut 6 ft of net pay in Carbonera C7 topped at 8,726 ft, 5 ft of net pay in Mirador topped at 8,973 ft, 9 ft of net pay in Gacheta topped at 9,520 ft, and 23 ft of net pay in Ubaque topped at 9,693 ft.

Oil quality is 38.5° gravity in Mirador and 12.8° gravity in Ubaque. The Carbonera C7, Gacheta, and Ubaque reservoirs had 253, 214, and 296 ft of gross thickness, respectively.

Pressure gradients were made based on repeat formation test data, and well-defined water oil contacts were confirmed in Ubaque and Mirador.

Meanwhile, Pacific Stratus plans to spud the La Creciente-2 appraisal well in early April. Calculated absolute open flow at the discovery well was 208.1 MMcfd of gas based on reservoir depth pressure data vs. the initially estimated 71.8 MMcfd based on wellhead surface pressure from Tertiary Cienaga de Oro at 10,933-11,572 ft.

Colombia's National Hydrocarbons Agency awarded Pacific Stratus 100% working interest in the 216,123-acre Guama Block near La Creciente.

The company committed to reprocess 300 line-km of seismic surveys and shoot 200 line-km of new 2D surveys in the first 18 months. The commitment for the second phase is to drill a well.

Pacific Stratus has mapped five gas and oil prospects in the block. One prospect was proved almost 20 years ago when the Ligia-1 well flowed 500 Mcfd of gas and 450 b/d of 39° gravity oil on short tests.

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