LLOG begins drilling Who Dat South exploration well in Gulf of Mexico

LLOG Exploration on Sept. 5 began drilling the Who Dat South well in the US Gulf of Mexico.

The exploration well, MC 545-1, is being drilled by the Seadrill West Neptune drillship targeting two Miocene age turbidite reservoir targets, partner Karoon Energy said in a release Sept. 9.

Who Dat South lies 11 km from the Who Dat floating production system (FPS) in water depth of about 780 m. The well will test two amplitude-supported Miocene turbidite reservoir prospects, with the shallower target analogous to productive zones within Who Dat fields.

The well will be drilled as a deviated hole with a total measured depth of about 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 (11 km).

Netherland Sewell and Associates Inc. 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%.

LLOG is operator of the Who Dat South joint venture with 45% interest. Partners are Karoon (30%) and Westlawn Americas Offshore (25%).