BG Group raises Tanzania resources to 15 Tcf

Posted on 11 December 2013

BG Group has increased total recoverable resources for the Mzia discovery and across Blocks 1, 3 and 4 offshore southern Tanzania, marking the conclusion of a successful drilling and testing campaign.

The campaign confirmed Mzia as the second giant gas discovery, after Jodari, in BG Group’s acreage offshore Tanzania, with 4.7 trillion cubic feet (Tcf) of total gross recoverable resources. Total gross recoverable resources across BG Group’s Blocks 1, 3 and 4 are now estimated to be approximately 15 Tcf, with further exploration upside.

The Mzia-3 appraisal well, drilled approximately 3.7 miles (6 km) north of the original Mzia-1 discovery in 5,840 ft (1,780 meters) of water, has been cored and logged. Results confirm the reservoir sands are extensive and of similar quality to those found in the Mzia-1 and Mzia-2 wells. In addition, the gas-down-to level proven in Mzia-3 is approximately 328 ft (100 meters) deeper than that of Mzia-2.

Further north, detailed technical analysis of the Block 4 discoveries Chewa, Ngisi and Pweza, which were also appraised and tested in the campaign, was positive with total gross recoverable resources in the block now estimated around 5 Tcf.

An extensive exploration and appraisal campaign of 14 wells started in 2010 offshore Tanzania and has had a 100% success rate with nine consecutive discoveries and five appraisal wells, three of which included drill stem tests showing high flow rates.

“We have sufficient resources for a two-train LNG project in Tanzania. The aim of our appraisal program now is to optimize the future development plan and place the most economic gas into the proposed project first to extract the most value across the chain,” Chris Finlayson, BG Group chief executive, said. “Onshore, BG Group and its partner Ophir Energy, together with the partners in Block 2, Statoil and ExxonMobil, are continuing to make good progress in the assessment of a multi-train LNG project. We look forward to the Tanzanian government’s announcement of a decision on the location of an onshore site for an export facility.”

BG Group as operator has a 60% interest in Blocks 1, 3 and 4 offshore Tanzania, with Ophir Energy holding 40%.

Leave a Reply

*

FEATURED MICROSITES


Recent Drilling News

  • 18 August 2014

    Repsol runs BlueDock connectors in Trinidad and Tobago

    Repsol has recently run BlueDock connectors with elastomeric seals in Trinidad and Tobago. The operation took place in the Arima 2 well on a jackup platform...

  • 15 August 2014

    Joe Hurt to retire from IADC

    After more than 14 years with IADC and a career spanning 42 years, Joe Hurt, Vice President of IADC’s Onshore Division, will retire at the end of August. Mr Hurt began his career in 1974 with Noble Corp, working on land drilling rigs...

  • 13 August 2014

    OneSubsea, Helix and Schlumberger to form subsea well intervention alliance

    OneSubsea, Helix Energy Solutions Group and Schlumberger have entered into a letter of intent to form an alliance to develop technologies and deliver...

  • 12 August 2014

    Noble Energy, Woodside Petroleum sign PSC for exploration offshore Gabon

    Noble Energy has signed a production-sharing contract (PSC) with Gabon government, covering Block F15 in the Gabon Coastal Basin. Under the terms...

  • 12 August 2014

    Opus Offshore selects DTI motion compensation for second set of Chinese drillships

    Drilling Technological Innovations (DTI) has been awarded a contract to provide motion compensation packages for the Tiger III and Tiger IV drillships...

  • Read more news