Deepsea Metro I Prepares to Drill Pweza-3 Well off Tanzania

Ophir Energy plc (Ophir or the Company) reported Wednesday the completion of the Pweza-2 appraisal well in Block 4 off Tanzania. Ophir holds 40 percent of Blocks 1, 3 and 4. BG Group operates with 60 percent.

Successful Pweza-2 appraisal well

The Pweza-2 well was drilled approximately 1.24 miles (2 kilometers) to the south of the Pweza-1 discovery well in Block 4 and was located downdip of the discovery well to better understand the wider distribution and quality of the reservoir sands across the Pweza field. The well intersected 65.6 feet (20 meters) of net pay with excellent reservoir quality which was confirmed to be in pressure communication with Pweza-1. This result has firmed up our resource estimates for the Pweza field which stand at 1.7 tillion cubic feet (Tcf) of gross recoverable resource.

Pweza-3 well and Drill Stem Test planned

The Deepsea Metro I or DSM-1 (UDW drillship) has now moved to the Pweza-3 drilling location approximately 3.1 miles (5 kilometers) to the west of Pweza-2. Pweza-3 is designed to further appraise the Pweza field, including the collection of cores and a Drill Stem Test. These are to confirm reservoir deliverability from the cluster of Block 4 discoveries that will provide a second hub for the liquefied natural gas (LNG) development. These activities are expected to be completed in early October.

Nick Cooper, CEO, commented:

"The Pweza-2 results have confirmed our expectations for recoverable resource estimates in the Pweza field and we look forward to Pweza-3 both further delineating the discovery and underpinning its commerciality with the planned flow-test."


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