Australia-based Carnarvon Petroleum and its joint venture partner Pan Orient Energy Corporation, USA, have completed flow testing of the BR-3D1 appraisal well.

The well is located in the Bo Rang B oil field in Thailand.

According to Perth-based Carnarvon, flow testing in the first horizontal appraisal well of the Bo Rang “B” volcanic reservoir, resulted in an oil flow of 700 barrels of oil per day, at a depth of 446 metres.

This is an increase in flow rate from the nearby BR-2ST1 deviated Bo Rang B discovery well which had a cased hole completion and flowed at 35 barrels of oil per day.

BR-3D1 is currently producing on a 90 day production test allowance at a stabilised rate of 700 barrels of 22 API gravity oil with minor amounts of gas and a BS&W of approximately 2.5 percent,  composed primarily of drilling fluids as the well continues to clean up.

This well was the first horizontal well drilled into the Bo Rang “B” reservoir in an attempt to achieve greater flow rates than the 35 barrels of oil per day tested in the BR-2ST1 discovery well.

The Bo Rang “B” (shallow volcanic) and “A” (deeper volcanic) reservoirs are two separate fractured volcanic intervals at the Bo Rang structure which have now both been confirmed as being commercial.