Pacific Rubiales Announces Another Oil Discovery At Quifa-10 Well On Quifa Block In Colombia

Published: 13-Oct-2009

Pacific Rubiales Energy Corp. (Pacific Rubiales Energy) has announced another oil discovery at its Quifa-10 well on the Quifa block, located in the Llanos basin of Colombia. The Quifa-10 was drilled as an appraisal well of the discovery well Quifa-7 located at prospect H.

The well found the top of the Carbonera basal sands at 2,889 feet measured depth (MD), or 2,229 feet true vertical depth at sub-sea level (TVDSS) and the oil water contact (OWC) at 2,933 feet MD, or 2,273 feet TVDSS, for a total oil column of 44 feet.

The petrophysical evaluation of the well indicates a net pay zone of 20 feet with 32% average porosity. The Quifa-10 well was drilled at a distance of 1.1 kilometers from the Quifa-7 well and at 2.0 kilometers of the Quifa-8 well in Prospect "E" (refer to the drill results of the Quifa-7 and Quifa-8 wells, in the company's press release dated September 8, and August 26, 2009, respectively). This well extends the discovery of Prospect "H" to the north and also extends the discovery of Prospect "E" to the south, resulting in a total hydrocarbon column of more than 100 feet for both prospects, with an average net pay of 24 feet. The results obtained with this well reinforce the company's belief that the area comprising prospects "D", "E", "H" and "I" are connected to the Rubiales field and we are just appraising this reservoir into the Quifa Block. The company is now planning to test the well and complete it as a vertical hole producer.

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