Well nearly doubles reserves in Alba field off Equatorial Guinea


By the OGJ Online Staff

HOUSTON, June 8 -- CMS Oil & Gas Ltd., a subsidiary of CMS Energy Corp., has drilled a well in Alba field off Equatorial Guinea that has helped to nearly double proven and probable reserves, said field partner Noble Affiliates Inc., Ardmore, Okla.

Alba No. 9 and Alba No. 8 well have established the field's estimated proven and probable reserves at more than 300 million bbl of liquid hydrocarbons associated with 4.6 tcf of gas, said Noble Affiliates.

Alba No. 9 is 2.4 miles from the nearest producing well in the gas and condensate field. It found 1,000 ft gross and 732 ft of net pay.

The well tested 37.5 MMcfd of gas and 2,400 b/d of 46°-gravity condensate from a 1-in. choke with 2,473 psi flowing tubing pressure and 197 psi bottom hole pressure draw down. The flow came from 120 ft of perforations.

Noble estimated the well is capable of producing 100 MMcfd and 6,200 b/d.

Current Alba production is 16,000 b/d of condensate, 2,400 b/d of gas liquids, and 240 MMcfd of gas.

About 105 MMcfd is being used by the Atlantic Methanol Production Co. LLC-operated methanol plant on Bioko Island, and the rest is reinjected.

CMS and its partners are evaluating various development scenarios.

Noble Affiliates owns 33.75% of Alba; Globex International, a subsidiary of GLOBEX Energy Inc., holds 10.87%; the government of Equatorial Guinea has 3%; and operator CMS Oil & Gas has 52.38%.

Participants in AMPCO are Noble Affiliates with 45%; CMS Energy Corp. 45%; and the government of Equatorial Guinea 10%.

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