Colombia

Pacific Rubiales Energy Corp., Toronto, said it appears to have extended Rubiales heavy oil field in Colombia’s Llanos basin into the Quifa block to the southwest and plans to drill four more wells surrounding the field in 2009.

By OGJ editors
HOUSTON, July 28
– Pacific Rubiales Energy Corp., Toronto, said it appears to have extended Rubiales heavy oil field in Colombia’s Llanos basin into the Quifa block to the southwest and plans to drill four more wells surrounding the field in 2009.

The I-9 ST-2 well, drilled at a 43° angle on Prospect I on the Quifa block, topped basal sandstones at 2,038 ft true vertical depth subsea and found the oil-water contact at 2,081 ft TVD ss, resulting in a 41-ft gross vertical oil column at the well.

Preliminary petrophysical evaluation indicates 18 ft of net pay with porosities over 30%. Pacific Rubiales plans to perforate at 3,175-90 ft and complete for production.

The four other exploratory wells are Quifa-9 on Prospect D northwest of Rubiales; Quifa-8 on Prospect E west of Rubiales; Quifa-7 on Prospect H south of Prospect E; and Quifa-6 on Prospect A in the northwest part of the Quifa block.

Pacific Rubiales, with 60% interest in the Quifa block, has the right to develop any discovery until 2031.

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