BG Group Begins Appraisal at Jodari Field

Ophir Energy plc announced the resumption of the Tanzanian drilling campaign to be executed with BG Group, its partner in this Joint Venture. The multi-well program commences with appraisal and satellite exploration around the Jodari field in Block 1 offshore Tanzania.


The first three wells in this campaign will be Jodari South-1, Jodari North-1 and a re-entry into Jodari-1. The current drilling program will focus on further defining the resource potential of the Jodari discovery. This will further serve to confirm its role as an anchor asset for the Tanzanian LNG development. On March 26, the Jodari-1 discovery well proved 4.5 Tcf of gas in place in the Lower Tertiary intraslope channel play. To date the Ophir-BG Joint Venture has discovered 13.5 - 21 Tcf of gas-in-place across Blocks 1, 3 and 4 offshore Tanzania.

The Deepsea Metro 1 (UDW drillship) has now returned to Block 1 and will drill the top-hole section of Jodari North-1 before moving to drill Jodari South-1 and a side track from Jodari South into the main Jodari field. The rig will then return to complete Jodari North-1. A Drill Stem Test (DST) will be performed in 1Q 2013.

Jodari North-1 is located 25 miles (40 kilometers) NE of the port of Mtwara and is approximately 4 miles (6 kilometers) NNW of the Jodari-1 well location. Jodari South-1 is located approximately 22 miles (35 kilometers) NE of Mtwara and is approximately 2 miles (3.5 kilometers) SW of the Jodari-1 well location. Combined, these three wells will confirm reservoir parameters across the Oligocene aged main reservoir of the Jodari complex. In addition, fluid samples will be collected and the dynamic reservoir properties will be tested through a DST in Jodari-1. This information will aid LNG development planning. Ophir holds 40 percent of Blocks 1, 3 and 4; the BG Group operates with 60 percent.

Nick Cooper, CEO of Ophir, said:

"The next phase of drilling is required to confirm the role of the Jodari field as an anchor asset to support Tanzania's first multi-train LNG development. To date the Ophir-BG Joint Venture has discovered 13.5 - 21 Tcf of gas-in-place across Blocks 1, 3 and 4 and we are looking forward to receiving further insight into the full scope of resources on these blocks.

"After these next three wells we will return to drilling high impact exploration prospects, both on the significant prospect inventory on the established intraslope play and, potentially, also on the recently identified Basin Floor Fan play."


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