Statoil, ExxonMobil successfully test Zafarani reservoir in Tanzania Block 2

Posted on 03 March 2014

Statoil and co-venturer ExxonMobil announced the results from their first drill stem test in the Tanzania Block 2 offshore discoveries. The data acquired is important to reduce technical uncertainties in a possible future Tanzania offshore and LNG development.

The Zafarani-2 operation tested two separate intervals and flowed at a maximum of 66 million standard cu ft of gas per day, constrained by equipment, and confirmed good reservoir quality and connectivity.

The drill stem test operation was performed through a re-entry in the Zafarani-2 well, in 2,400 m water depth and approximately 80 km off the coast of southern Tanzania.

“The ongoing appraisal program is crucial to firm up the design and development basis for bringing gas to shore and a first phase onshore LNG project in Tanzania,” said Øystein Michelsen, Statoil’s Tanzania Country Manager. “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.”

The production well rate potentials are estimated to be higher than the equipment constrained rates obtained during the test. The Zafarani-2 operation will be followed by the appraisal well Zafarani-3, which concludes the planned appraisal in the Zafarani reservoir, the cornerstone for a field development in Tanzania Block 2.

The Zafarani-2 well test announcement follows the Mronge-1 discovery made in December 2013, which was the fifth discovery in Block 2 and brought the natural gas in place volumes up to 17-20 trillion cu ft.

The Mronge-1 was preceded by three successful high-impact gas discoveries during the first drilling phase with Tangawizi-1, Zafarani-1 and Lavani-1, and a deeper discovery in a separate reservoir in Lavani-2.

Statoil operates the license on Block 2 on behalf of Tanzania Petroleum Development Corp (TPDC) and has a 65% working interest, with ExxonMobil Exploration and Production Tanzania holding the remaining 35%.

 

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 22 October 2014

    Shell discovers gas in pre-salt reservoir offshore Gabon

    Shell announced a frontier exploration discovery offshore Gabon, West Africa. The well Leopard-1 encountered a substantial gas column with around 200 m net gas pay…

  • 22 October 2014

    Statoil proves new oil resources near Grane field in North Sea

    Well 25/8-18 S, drilled by the rig Transocean Leader, proved an oil column of 25 m in the Heimdal Formation. The estimated volume of the discovery…

  • 21 October 2014

    IADC Cybersecurity Task Group to provide industry guidance to assess risks

    The oil and gas industry is not immune to cybersecurity threats, from computer viruses and malware to targeted attacks. The IADC Advanced Rig Technology (ART) Committee…

  • 21 October 2014

    Check-6 launches RIGOR digital checklist and compliance system

    Check-6 has launched RIGOR, a checklist-based mobile app to help simplify complex procedures and mitigate human error on the rig. Taking lessons from the aviation industry…

  • 21 October 2014

    Video: Next IADC Land Contract update to start in 2016

    The latest version of the IADC Land Contract was released in November 2013. Various incidents, including Macondo, delayed the release. “It’s an industry contract…

  • Read more news