Chevron has commenced water injection operations at its deepwater Gulf of Mexico Jack/St. Malo and Tahiti facilities in an effort to boost oil and natural gas recovery, the company announced Sept. 3.
Chevron achieved first water injection at the St. Malo field, located 280 miles south of New Orleans in 7,000 ft of water. The project, which was Chevron’s first waterflood project in the deepwater Wilcox trend, was delivered under budget and included the addition of water injection facilities, two new production wells and two new injection wells. It is expected to add approximately 175 MMboe to the St. Malo field’s gross ultimate recovery.
At the Tahiti facility, located approximately 190 miles south of New Orleans in around 4,100 ft of water, Chevron started injecting water into its first deepwater Gulf producer-to-injector conversion wells. The project included installation of a new water injection manifold and 20,000 ft of flexible water injection flowline.
Bolstered by multiple development projects since the start of operations, Jack and St. Malo together have cumulatively reached almost 400 MMboe of gross production, while the Tahiti facility recently surpassed 500 MMboe of gross production.
Chevron is operator of the St. Malo field, holding a 51% working interest. MP Gulf of Mexico LLC owns a 25% stake, with Equinor holding 21.5 %. Exxon Mobil and Eni each own have a 1.25% stake in the field.
Chevron operates the Tahiti facility with a 58% working interest, with Equinor and TotalEnergies holding 25% and 17%, respectively.