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Samsung wins Statoil Heidrun Floating Storage Unit

Statoil FSU to strengthen Heidrun oil loading system

Statoil and its partners, Petoro, ConocoPhillips and Eni, in the Heidrun oil and gas field awarded a new permanent floating storage unit (FSU) to the South Korean engineering company Samsung Heavy Industry (Samsung).

Heidrun is an oil and gas field located in the Norwegian North Sea discovered by ConocoPhillips in 1985 and in operation since 1995.

During the exploration and the first development phase, ConocoPhillips was acting as the operator and then Statoil and its partners came to share working interest as following:

 Petoro 58.16%

 – ConocoPhillips 24.31%

 – Statoil 12.40% is the operator

 – Eni 5.11%

Since 1995 Heidrun has been developed with an offshore platform using a floating tension leg platform (TLP) design with a concrete hull.

From this platform, the production of oil and gas in Heidrun main field is operated with 76 wells including:

 – 51 production wells

 – 24 sea water injection wells

 – 1 gas injection well

The sea water injection facility has a capacity of 110,000 b/d for which Statoil invested some additional $100 million capital expenditure to capture and re-inject in the reservoir any oil and chemical residue, preventing discharge in the environment.

The sea water injection is adjusted to enhance the oil recovery (EOR) along the Heidrun life time.

The natural gas piped out from Heidrun is transported by trunkline to supply Tjeldbergodden methanol plant

The oil is exported by shuttle tanker to Mongstad terminal close to Bergen.

Statoil and its partners Petoro, ConocoPhillips and Eni are planning to maintain Heidrun plateau production up to 2045 which supposes additional development.

Samsung won Heidrun FSU plus two units in option

Since Heidrun is in operation the oil is offloaded through two buoys and purpose-build shuttle tankers.

In respect with Statoil and its partners ambition to extend Heidrun life time up to 2045, the actual buoy loading system had to be re-thought.

Designed for 30 years lifespan, the new floating storage unit will be permanently connected to a buoy.

Then the FSU will offload the oil into the shuttle tankers.

In adding the FSU in the transfer chain of the oil from the tension leg platform to the shuttle tankers, Statoil and its partners expect to facilitate connecting operations for the shuttle tankers and to secure the whole oil loading process with a more efficient and robust export system.

After a classical pre-qualification process, Statoil and its partners selected the shipyards offering the guaranty to apply Statoil maritime requirements.

According to Statoil’s HSE, costs and quality specifications, Statoil expects that all the systems and equipment having a maritime character should be designed and built in respect with maritime classifications and regulations.

In this context of the competition Samsung proposed its own design FSU meeting Statoil‘s requirements and in line with shipyard construction practices.

Therefore Statoil and its partners sent a letter of intent to Samsung the Heidrun floating storage unitt for an amount of $230 million with an option for two additional units.

According to the terms of the contract, Samsung will perform the engineering, procurement and construction (EPC) services of the Heidrun FSU.

The engineering and construction work will start immediately at Samsung’s Geoje Island shipyard in South Korea, so that Statoil and its partners Petoro, ConocoPhillips and Eni can expect to connect this new floating storage unit in Heidrun by 2015. 

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