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BG's Kamba-1 gas discovery offshore Tanzania bolsters third LNG train plan

2/10/2014 by


"The Kamba discovery has now confirmed sufficient aggregate resource in Block 4 to supply one 5MMTPA train of LNG,” said Nick Cooper, Ophir CEO.

“In combination with the discovered resource in Block 1, the Block 1 and 4 Joint Venture is now close to the threshold resource volumes for three 5MMTPA LNG trains.

“Ophir is the most active explorer in Tanzania in 2014 and the drilling programme continues with the first of two operated exploration wells in the East Pande and then the Block 7 PSCs. We are also pleased to re-assume operatorship of Block 3 to explore the potential of further upside."

BG operates the Block 4 licence and Ophir holds a 20 per cent interest.

The well was drilled by the Deepsea Metro I drillship in a water depth of 1,379-metres to a total depth of 3,969-metres with the twin objectives of intersecting the Paleocene-aged Fulusi prospect (a northern extension of the earlier Pweza discovery) and the primary target of the Cretaceous-aged Kamba prospect.

The Kamba-1 well encountered an 18-metres gross gas column in the Fulusi prospect and, after sidetracking to test the Kamba prospect, the Kamba-1ST well established another gas column of 140-metres with high net to gross, good quality, reservoir sands.

The well has encountered better quality reservoir sands than prognosed pre-drill and further analysis is expected to confirm discovered volumes somewhat in excess of the pre-drill estimated mean (2C) recoverable resources of 1.03TCF, comprised of 650bcf in Kamba and 380bcf in Fulusi.

The Kamba-1 discovery is the joint venture's 16th consecutive discovery well in Blocks 1, 3 and 4.

This discovery, plus recent volume updates on the earlier discoveries, increases Ophir's estimate of the total Block 1, 3 and 4 mean (2C) recoverable resource to 17.1TCF. The Kamba-1 result provides critical mass for an LNG train to be supplied from the fields in Block 4 and also takes the overall resource volume to the threshold for a future potential third LNG train to be from Blocks 1 and 4.

The Kamba-1 well represents the joint venture's final well in this current drilling campaign. The Deepsea Metro I drillship will remain in Tanzania and now moves to drill two operated wells for Ophir in the East Pande and Block 7 PSCs.

Ophir will imminently spud the Tende-1 well on the East Pande licence. Ophir operates the East Pande licence and holds a 70 per cent interest, the East Pande PSC is located between the coast and the significant gas discoveries in Blocks 1 and 2.The Tende-1 well is on trend with the recent Taachui-1 discovery in Block 1 at a water depth of 680 metres and will be drilled to a planned total depth of 4,200 metres. The well is targeting gas in a lower Cretaceous sandstone reservoir with a mean prospective resource estimate of 2.38TCF at a 15 per cent chance of success. Drilling operations are expected to take approximately 35 days.

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