Ophir drills dry well offshore Thailand

Ophir drills dry well offshore Thailand

First of Ophir’s two exploration wells in its Gulf of Thailand drilling campaign has failed to unearth oil and gas. The company on Monday said it completed operations on the G4/50-10 exploration well that was testing the Soy Siam prospect.

According to Ophir, the well reached a total depth of 1,627 meters and encountered the primary Miocene reservoir targets on prognosis in terms of both reservoir quality and depth.

However, Ophir says, all reservoirs were dry and no hydrocarbon shows were 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 Emerald Vantage jack-up drilling 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 30 km south of the Bualuang field that have potentially been charged from deeper in the South Western Sub-Basin. Each fault block has multiple stacked, Miocene and Oligocene reservoir targets. The South West fault block is the initial target with a mean prospective resource of 25 MMbo and a 32% chance of success.  If successful, the Parichat South East fault block would form an immediate follow on location, Ophir said.

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