Kosmos finds gas with Guembeul-1 offshore Senegal
Kosmos Energy Ltd.’s first attempt to delineate the Greater Tortue area offshore Senegal encountered 101 m of net natural gas pay in two reservoirs in the northern part of the St. Louis Offshore Profond license area, the company said.
Kosmos Energy Ltd.’s first attempt to delineate the Greater Tortue area offshore Senegal encountered 101 m of net natural gas pay in two reservoirs in the northern part of the St. Louis Offshore Profond license area (OGJ Online, Nov. 12, 2015), the company said.
The Guembeul-1 exploration well was drilled 5 km south of the basin-opening Tortue-1 gas discovery (renamed Ahmeyim)(OGJ Online, Apr. 27, 2015). The well was drilled in 2,700 m of water to a total depth of 5,245 m, encountering 56 m of pay in the Lower Cenomanian and 45 m in the underlying Albain. Neither interval contained water, Kosmos reported, adding the well demonstrated reservoir continuity as well as static pressure communication with the Totue-1 well in the Lower Cenomanian. This suggests a single, large gas accumulation.
Based on the results from Guembeul-1, Kosmos increased its gross resource estimate for the Tortue West structure to 11 tcf from 8 tcf. For the Greater Tortue Complex, estimates have increased to 17 tcf from 14 tcf.
The Atwood Achiever drillship will now proceed to Mauritania to drill the Ahmeyim-2 delineation well in the southern part of Mauritania’s Block C-8.
Kosmos holds a 60% interest in the Guembeul-1 well. Partners include Timis Corp. Ltd. 30% and Petrosen 10%.