Ecopetrol Confirms Oil Discovery at Quriyana-1 Well in Colombia

Ecopetrol S.A. has confirmed a significant oil discovery at the Quriyana-1 well, located in the municipality of Orito, province of Putumayo, Colombia. The well, drilled to a depth of 8,445 feet, tested two reservoirs in the Caballos formation, yielding a combined production of 300 barrels per day in natural flow. However, the results suggest that using an artificial lifting system may improve production, and the company plans to analyze the results and continue evaluating the well's behavior.

Key Takeaways:

• The Quriyana-1 well was drilled by Ecopetrol to a total depth of 8,445 feet (2.5 kilometers) in the first week of February 2009.
• The well tested two reservoirs in the Caballos formation, with the lower section yielding an average stable flow of 96 oil barrels per day and the upper section yielding an average stable flow of 195 barrels per day.
• The combined production of the reservoirs in natural flow was estimated to be 300 barrels per day.
• The company plans to analyze the results and continue evaluating the well's behavior.
• The well is located near several other Ecopetrol production fields, which could help bring the well on stream in the short term.

Statistics:

• Depth of the Quriyana-1 well: 8,445 feet (2.5 kilometers)
• Average stable flow from the lower Caballos formation: 96 oil barrels per day
• Average stable flow from the upper Caballos formation: 195 barrels per day
• Combined production of the reservoirs in natural flow: 300 barrels per day
• Pressure at the wellhead during testing of the Lower Caballos formation: 79 psi
• Wellhead pressure of the Upper Caballos formation during testing: 70 psi
• Water percentage (BSW) in the Lower Caballos formation: 2%
• Water percentage (BSW) in the Upper Caballos formation: 10%

Sources:

• Ecopetrol S.A., press release (no date provided)
• Science Letter editors, "Ecopetrol Announces Oil Discovery at Quriyana-1 Well", NewsRx.com (2009)