Colombian oil and gas company Ecopetrol has confirmed the oil discovery at the Quriyana-1 well, located in the municipality of Orito in the province of Putumayo, Colombia.
Ecopetrol said that, it began drilling into the Quriyana-1 exploratory well on November 5, 2008 and reached a total depth of 8.445ft in the first week of February 2009.
On reaching target depth, the company carried out the tests known as DST (drill stem test) in the sandstones of the Caballos formation, both in the lower and the upper section.
The identified reservoirs were tested through perforations into five zones within the formation, located at depths between 8,100ft and 8,344ft, said the company. According to the company, the lower Caballos formation contributed an average stable flow of 96 oil barrels per day (bpd) and the upper sandstones produced an average stable flow of 195bpd.
During the testing of the Lower Caballos formation, the pressure at the wellhead was 79 psi and the water percentage (BSW) was 2%. The Upper Caballos formation maintained a wellhead pressure of 70 psi and the water percentage (BSW) reached 10%.
Ecopetrol claims to be Colombia’s largest integrated oil company and is among the top 40 oil companies in the world and the four largest oil companies in Latin America. Besides Colombia, the company is involved in exploration and production activities in Brazil, Peru and the United States (Gulf of Mexico).
