LLOG, Karoon Energy commence drilling operations on Who Dat South exploration well offshore U.S. Gulf of Mexico

(WO) – According to Karoon Energy, the Who Dat South exploration well, located 11 km west of the Who Dat FPS offshore in the U.S. Gulf of Mexico, commenced drilling on Sept. 5, targeting two Miocene age turbidite reservoir targets. The Seadrill West Neptune drillship carried out the operations.

Who Dat South lies in a water depth of approximately 780 m. The well will test two amplitude-supported Miocene turbidite reservoir prospects, with the shallower target analogous to productive zones within the Who Dat fields. 

The well will be drilled as a deviated hole with a total measured depth of approximately 7,500 m and is expected to take 50 - 60 days to drill and evaluate. The well lies within tie-back distance to both the Who Dat G subsea manifold (6 km) and the Who Dat FPS.

Independent expert, Netherland Sewell and Associates, Inc, has previously estimated that the Who Dat South prospect contains 31 MMboe of gross unrisked Prospective 2U Resources. The geological probability of success is assessed at 52%.

The Who Dat South Joint Venture working interests are as follows, LLOG (operator), 45%; Karoon Energy, 30%; and Westlawn Americas Offshore, 25%.