Rig: Discoverer Americas

Name Discoverer Americas
Owner Triton Nautilus Asset Leasing GmbH
Manager Transocean Offshore Deepwater Drilling Inc.
Rig Type Drillship
Sub Type Ultradeep Water
Jackup Type --
Max Water Depth (ft) 10000
Max Drill Depth (ft) 40000
Dimensions (ft) 835 x 125 x 62
Leg Length (ft) --
Competitive Yes

Current Location

Country Trinidad
Region Latin America

Drilling Equipment

Drawworks Type National Oilwell Varco
Drawworks HP --
Mud Pumps Type National Oilwell Varco Hex 240
Top Drive Aker Maritime Hydraulics MDDM-1250-AC-2M
Hookload Capacity (lbs) 2500000

Rig Construction Details

Rig Design Transocean Offshore
Rig Model Enhanced Enterprise Class
Year Built 2009
Country of Build South Korea
Yard Name Okpo Shipyard
Group Yard Name Daewoo Shipbuilding & Marine Engineering (DSME)

Rig Contract Details

Operating Status Cold Stacked
Operator --

Rig Images

News

17 Dec 2015

Rig contract cancellation

Statoil has decided to cancel the contract with Transocean for the drillship Discoverer Americas. The drillship has been on contract with Statoil since 2009, supporting Statoil’s exploration activities in East and North Africa and the Gulf of Mexico. Statoil was in the current environment unable to secure additional activity for the rig for the remainder of the contract period, ending in May 2016. “Discoverer Americas has been a very good performer for Statoil, contributing to test deep-water and ultra-deep water prospectivity in Tanzania, Egypt, and the Gulf of Mexico and appraising the multiple high-impact discoveries in Tanzania. All operations were performed with solid drilling efficiency and a good safety culture. Without additional activity lined up, we unfortunately have to let the rig go prior to contract end,” says Tore Aarreberg, head of rig procurement.

30 Mar 2015

Statoil announces eighth discovery offshore Tanzania

Statoil today announced that the Mdalasini-1 exploration well has resulted in a new natural gas discovery offshore Tanzania. The discovery of an additional 1.0-1.8 trillion cubic feet (tcf*) of natural gas in place in the Mdalasini-1 well, brings the total of in-place volumes up to approximately 22 tcf in Block 2. The Mdalasini-1 discovery is located at a 2,296-metre water depth at the southernmost edge of the block. The new gas discovery has been made in Tertiary and Cretaceous sandstones. “The Mdalasini-1 discovery marks the completion of the first phase of an efficient and successful multi-well exploration programme offshore Tanzania,” says Nick Maden, senior vice president for Statoil's exploration activities in the Western Hemisphere. “Since the start of the programme in February 2012, we have drilled 13 wells and made eight discoveries, including Mdalasini-1. We still see prospectivity in the area, but after appraising the Tangawizi-1 high-impact discovery, which was made in March 2013, there will be a pause in the drilling to evaluate the next steps and to mature new prospects,” adds Maden. Statoil has drilled the Mdalasini-1 well with a 100% working interest. Previously Statoil and co-venturer ExxonMobil have made seven discoveries in Block 2, including the five high-impact gas discoveries Zafarani-1, Lavani-1, Tangawizi-1, Mronge-1 and Piri-1, as well as the discoveries in Lavani-2 and Gilligiliani-1. Statoil operates the licence on Block 2 on behalf of Tanzania Petroleum Development Corporation (TPDC) and has a 65% working interest. ExxonMobil Exploration and Production Tanzania Limited holds the remaining 35%. TPDC has the right to a 10% working interest in case of a development phase. Statoil has been in Tanzania since 2007, when it was awarded the operatorship for Block 2.

14 Oct 2014

Statoil strikes for the seventh time in Tanzania

Statoil and co-venturer Exxon Mobil today announced that the Giligiliani-1 exploration well has resulted in a new natural gas discovery offshore Tanzania. The discovery of an additional 1.2 trillion cubic feet (tcf) of natural gas in place in the Giligiliani-1 well brings the total of in-place volumes up to approximately 21 tcf in block 2. The Giligiliani-1 discovery is located along the western side of block 2 at a 2,500-metre water depth. The new gas discovery was made in Upper Cretaceous sandstones. “This discovery has proven the gas play extends into the western part of block 2, which opens additional prospects. Our success rate in Tanzania has been high and opening up a new area will be key to continuing our successful multi-well programme,” said Nick Maden, senior vice president for Statoil's exploration activities in the Western Hemisphere. The rig ‘Discoverer Americas’ will now drill the Kungamanga prospect located in the central part of block 2. The Giligiliani-1 discovery is the venture’s seventh discovery in block 2. It is preceded by the five high-impact gas discoveries Zafarani-1, Lavani-1, Tangawizi-1, Mronge-1 and Piri-1, and a discovery in Lavani-2. Statoil operates the licence on block 2 on behalf of Tanzania Petroleum Development Corporation (TPDC) and has a 65% working interest. ExxonMobil Exploration and Production Tanzania Limited holds the remaining 35%. Statoil has been in Tanzania since 2007, when it was awarded the operatorship for block 2.

18 Jun 2014

Statoil hits sixth discovery in Tanzania

The discovery in the Piri prospect is Statoil and co-venturer ExxonMobil’s sixth discovery and the fifth high-impact discovery in Block 2 offshore Tanzania. The discovery of an additional two to three trillion cubic feet (tcf) of natural gas in place in the Piri-1 well brings the total of in-place volumes up to approximately 20 tcf in Block 2. “Since 2012 we have had a 100% success rate in Tanzania and the area has become a core exploration area in a very short period of time. We quickly went from drilling one well to a multi-well programme, and with Piri-1 we are continuing the success,” says Nick Maden, senior vice president for Statoil's exploration activities in the Western Hemisphere. The new gas discovery was made in the same Lower Cretaceous sandstones as the gas discovery in the Zafarani-1 well drilled in 2012. The Piri-1 discovery is the venture's sixth discovery in Block 2. It was preceded by the high-impact gas discoveries Zafarani-1, Lavani-1, Tangawizi-1 and Mronge-1, and a discovery in Lavani-2. Piri-1 was drilled by the drillship ‘Discoverer Americas’. The well location is two kilometres southwest of the Lavani-1 well at 2,360-metre water depth. The ‘Discoverer Americas’ has now moved location and is currently drilling the Binzari prospect in Block 2. “Additional prospectivity has been mapped and will be tested throughout 2014 and 2015. We expect to drill several additional exploration and appraisal wells and hope that the results from these wells will continue to add gas volumes for a future large-scale gas infrastructure development,” says Maden. Statoil operates the licence on Block 2 on behalf of Tanzania Petroleum Development Corporation (TPDC) and has a 65% working interest. ExxonMobil Exploration and Production Tanzania Limited holds the remaining 35%. Statoil has been in Tanzania since 2007, when it was awarded the operatorship for Block 2.

6 Dec 2013

Statoil makes another high-impact natural gas discovery offshore Tanzania

Statoil and co-venturer ExxonMobil today announce its fifth discovery in Block 2 offshore Tanzania. The discovery of an additional 2-3 trillion cubic feet (Tcf)* of natural gas in place in the Mronge-1 well brings the total of in-place volumes up to 17-20 Tcf in Block 2. Mronge-1 is drilled by the drillship Discoverer Americas, and the site is located 20 kilometres north of the Zafarani discovery, and at 2,500-metre water depth. "We have initiated a new and ambitious drilling campaign offshore Tanzania following four successful discoveries during the first drilling phase. The Mronge-1 well discovered additional gas volumes and furthers the potential for a natural gas development in Tanzania. The new drilling program also allows us to fully explore the remaining exploration potential in Block 2," says Nick Maden, senior vice president for Statoil's exploration activities in the Western hemisphere. The Mronge-1 well discovered gas at two separate levels. The main accumulation is at the same stratigraphic level as proven in the Zafarani-1 well in Block 2. The Zafarani-1 discovery was made in 2012 and was a play opener for the block. The secondary accumulation was encountered in a separate, younger gas bearing reservoir, in a play which previously has not been tested in Block 2. The Mronge-1 discovery is the venture's fifth discovery in Block 2. It 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. "These are high value resources. The attractiveness is also demonstrated by a recent asset transaction in the neighboring block. The discoveries also demonstrate how Statoil's strategy of focusing on high-impact opportunities is paying off and supports the company's ambition for international growth," Maden says. "The Tanzania government is pleased to learn about additional gas resources discovered in Block 2," says Hon. Prof. Sospeter Muhongo, Minister for Energy and Minerals in Tanzania. The Statoil-operated partnership started its new drilling campaign in Block 2 in September 2013. In addition to Mronge-1, the campaign includes drilling of several new prospects and appraisal of previous discoveries. Following Mronge-1, the partnership is scheduled to appraise the 2012 Zafarani discovery. Statoil operates the licence on Block 2 on behalf of Tanzania Petroleum Development Corporation (TPDC) and has a 65% working interest, with ExxonMobil Exploration and Production Tanzania Limited holding the remaining 35%. Statoil has been in Tanzania since 2007, when it was awarded the operatorship for Block 2.

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