Colombia

By OGJ editors
HOUSTON, Mar. 8 – Canacol Energy Ltd., Calgary, completed reworking the Rancho Hermoso-4 well in Colombia’s Llanos basin in the Guadalupe and Los Cuervos formations and is in the process of applying for commerciality of the Los Cuervos formation in the well.

The combined gross flow rate in the RH-4 well from the Guadalupe, Los Cuervos, and Ubaque reservoirs was 2,339 b/d of oil. Before the workover, Ubaque was producing 810 b/d, 76% water, on an electric submersible pump. Ubaque oil is 17° gravity.

The Guadalupe, Los Cuervos, Mirador, and Ubaque reservoirs will be the target of a development drilling campaign later in 2010.

Flow stabilized at 632 b/d of 34° gravity oil and 181 Mcfd of gas from Guadalupe perforations at 9,056-52 ft measured depth and 897 b/d of 33° gravity oil and 268 Mcfd of gas from Los Cuervos perforations at 8,992-96 ft, 8,998-9,004 ft, and 9,021-26 ft.

Guadalupe and Los Cuervos each produced more than 5,000 b/d of water. Canacol applied to commingle oil production from the two formations.