By OGJ editors
HOUSTON, July 22 -- Ramco Energy PLC, London, has drilled five wells of a six-well program in its Seven Heads gas field in the Celtic Sea and expects first gas early in the fourth quarter.
Previously, proved and probable reserves were independently assessed at 300 bcf (OGJ Online, Mar. 17, 2003). This figure will be reviewed once the drilling program is completed, said Ramco, which operates the project with 86.5% interest.
Well 48/24-8, drilled to a depth of 4,150 ft., confirmed a common gas water contact exists throughout, meaning there is a greater column of gas-bearing sands than assumed in the original reserve estimate, the company said.
Well 48/24-9 was drilled to 3,655 ft. Wells previously drilled were 48.24-5A, 48/24-6, and 48/24-7A. Gas from all these wells flowed at a rate greater than the 10 MMscfd assumed in the base production forecast for the field.
Ramco said that well 48/23-2 was expected to be spudded this month, and 48/24-5A is in the process of being recompleted. This is the final work for the drilling program.
All 25.5 km of 8 in. infield pipelines and associated umbilicals to connect the wells to a central field manifold have been laid on the seabed and trenched as has the 35 km of 18 in. main pipeline back to Marathon International Petroleum Ltd.'s Kinsale A platform.
The central manifold is also in place on the seabed and the subsea hookup work has commenced, Ramco said. Construction work to connect the Seven Heads gas pipeline to the Kinsale A platform is under way.
