Ophir Energy came up dry at the first well of its two-well drilling campaign in Block G4/50 offshore Thailand.
The G4/50-10 well in located on the Soy Siam prospect, which commenced drilling using the Emerald Vantage jackup rig in October and reached a total depth of 1627m.
Although, the well encountered the primary Miocene reservoir targets on prognosis in terms of both reservoir quality and depth, all reservoirs were dry and no hydrocarbon was encountered.
The well has, therefore, been plugged and abandoned as a dry hole. Preliminary well failure analysis suggests that the structure had no access to charge, which was identified pre-drill as one of the key risks.
The rig will now move to drill the Parichat South West prospect. This well is independent of Soy Siam, as it is testing a different petroleum system. The Parichat complex is a cluster of four fault blocks located 30km south of the Bualuang field.
Each fault block has multiple stacked, Miocene and Oligocene reservoir targets. The southwest fault block is the initial target with a mean prospective resource of 25 MMbo and a 32% chance of success, Ophir said. If successful, the Parichat southeast fault block would form an immediate follow on location.
Image from Ophir.
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