Petrobras tests Colombia gas discovery

Petrobras tested the Sirius-2 well in block GUA-OFF-0, 77 km offshore Colombia in 803 m of water.

March 10, 2025

The Sirius-2 well contains significant deepwater gas reserves.
A drill stem test assessed about a 100-m reservoir interval and demonstrated good productivity.

Petrobras operations offshore Colombia — Petrobras has carried out a formation test at the Sirius-2 well in deep waters off Colombia.

Petrobras International Braspetro BV (PIB-COL) tested the Sirius-2 well in block GUA-OFF-0, 77 km off Santa Marta in 803 m of water.

A drill stem test (DST) assessed about a 100-m reservoir interval which demonstrated good productivity. During the test, samples were collected and will be characterized through laboratory analyses. The preliminary result of the test reinforces the volumetric potential for gas in the region.

Sirius-2 was spudded on June 19, 2024. Well results confirmed over 6 tcf in place, possibly increasing Colombia's current reserves by 200% (OGJ Online, Dec. 6, 2024).

PIB-COL will continue to evaluate the results obtained from the drilling of Sirius-1 and Sirius-2 wells.

PIB-COL is operator of block GUA-OFF-0 (44.44%) with partner Ecopetrol (55.56%).

About the Author

Alex Procyk

Upstream Editor

Alex Procyk is Upstream Editor at Oil & Gas Journal. He has also served as a principal technical professional at Halliburton and as a completion engineer at ConocoPhillips. He holds a BS in chemistry (1987) from Kent State University and a PhD in chemistry (1992) from Carnegie Mellon University. He is a member of the Society of Petroleum Engineers (SPE).