Statoil and co-venturer ExxonMobil have announced that the Zafarani-2 operation tested two separate intervals and flowed at a maximum of 66 million standard cubic feet of gas per day, as part of a first drill stem test conducted in the Tanzania block 2 offshore discoveries.
The Zafarani-2 operation was constrained by equipment and confirmed good reservoir quality and connectivity.
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According to Statoil, the acquired data will help reduce technical uncertainties in a possible future Tanzania offshore and LNG development.
The drill stem test operation has been performed by the companies through a re-entry in the Zafarani-2 well, in water depth of 2,400m and approximately 80km off the coast of southern Tanzania.
Statoil Tanzania country manager Øystein Michelsen said: "The ongoing appraisal programme is crucial to firm up the design and development basis for bringing gas to shore and a first phase onshore LNG project in Tanzania.
"We are now working constructively with our co-venturer ExxonMobil, Blocks 1, 3 and 4, and the Tanzanian authorities to progress the plans for a joint LNG plant development."
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By GlobalDataCompared to the equipment-constrained rates obtained during the test, the production well rate potentials are estimated to be higher.
The Zafarani-2 operation will be followed by the appraisal well Zafarani-3, which concludes the planned appraisal in the Zafarani reservoir. The Zafarani-2 well test announcement follows the Mronge-1 discovery made in December 2013.
Said to be the fifth discovery in block 2, Mronge-1 brought the natural gas in place volumes up to 17-20 trillion cubic feet.
On behalf of Tanzania Petroleum Development (TPDC), Statoil operates the licence on block 2 with a 65% working interest, while ExxonMobil Exploration and Production Tanzania holds the remaining 35%.
Image: Tanzania map. Photo: courtesy of Statoil.
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