Colombia

By OGJ editors
HOUSTON, Jan. 4 -- Pacific Rubiales Energy Corp., Toronto, said two of three appraisal wells in Colombia’s Rubiales field extended known production into new areas while two exploratory wells on the adjacent Quifa block found no hydrocarbons. Both are in the Llanos basin.

The Rub-251 and Rub-366 appraisal wells on prospect D in northern Rubiales field each cut 31 ft of net pay in Carbonera with porosities above 30%, extending the late 2008 D block discovery to the southeast and its continuation onto the Quifa block. They are to be completed as vertical producers.

Rub-310 is to be converted to an injection well as its Carbonera section was water saturated.

Exploratory wells Quifa-15 and 16 on the B and C prospects 15-18 km northeast of Rubiales production found good reservoir characteristics in Carbonera but no hydrocarbons. Both are on the highest part of the structure of the Rubiales-Quifa area. The company will conduct seismic inversion to identify the stratigraphic anomaly that did not permit migrating oil to reach the area targeted by the two wells.