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Statoil goes for execution with Aasta Hansteen offshore project

Hyundai Heavy Industries books $1.1 billion Topsides 

2B1st_Project_Smart_Explorer_Sales_Pursuit_ToolStatoil and its partners, OMV from Austria and ConocoPhillips from USA made the final investment decision (FID) and awarded the topsides, the most critical package, of the Aasta Hansteen project to Hyundai Heavy Industries.

Previously named Luva, the Aasta Hansteen is located 300 kilometers offshore Norway by 1,300 meters of water depth.

With estimated 47 billion cubic feet of natural gas and 0.8 million cubic meter of natural gas liquids (NGL), Aasta Hansteen is considered as one of the largest discovery of the Norwegian Continental Shelf (NCS).

In addition Aasta Hansten raw gas contains a low percentage of CO2.

For the export of the natural gas, Aasta Hansteen will be connected to the nearest gas processing facility located in the Port of Nyhamna through a 480 kilometers subsea Polarled gas pipeline.

Statoil_Aasta_Hansteen_gas_fieldIn the Aasta Hansteen project, Statoil and its partners share interests:

 – Statoil 75% is the operator

 – OMV 15% replaced ExxonMobil in July 2012

 – ConocoPhillips 10%

Because of the low content of condensate and the distance from the shore, Statoil and its partners, ExxonMobil and ConocoPhillips at that time, opted for a  single point anchor reservoir (SPAR) platform design.

This SPAR platform will be moored to a subsea template, 1,300 meters below on the seabed.

Aker Solutions, CB&I, FMC, Saipem, Samsung, and Technip proposed their own concept during the feasibility study and the competitive front end engineering and design (FEED) organized by Statoil and its partners.

In July 2012 Technip, in consortium with Hyundai Heavy Industries (HHI), won the engineering, procurement and construction (EPC) contract for the Aasta Hansteen SPAR.

This package was awarded by Statoil and its partners for $660 million capital expenditure.

This SPAR platform will be executed in HHI South Korean shipyard and will be carried to the Norwegian North Sea with the world largest heavy-lift vessel in 2015.

Aasta Hansteen SPAR will be the first platform of that kind in Norway and the largest in the world with 215 meter height and 50 meters hull diameter to contain 25,000 cubic meters of condensate.

Statoil plans to invest $5.6 billion in Aasta Hansteen

Discovered by BP in 1997, Statoil took over the operations in 2006.

On January 2013, Statoil submitted its plan for the development and operation (PDO) of Aasta Hansteen field to the Ministry of Petroleum and Energy in Norway.

With a total budget of capital expenditure estimated to $5.6 billion, the development of Aasta Hansteen includes:

Statoil_Aasta_Hansteen_Technip_HHI_SPAR_hull – Marine operations and drilling

 – Subsea production system

 – Power cables and umbilical

 – Tubing design

 – SPAR hull

 – Topsides

 In May 2012, CB&I had been awarded by Statoil and its partners the FEED services contract for the Aasta Hansteen topsides.

 These topsides will include:

 – Gas central processing facilities

 – Utilities

 – Living quarters to host 108 people

 – Flare system

Statoil and its partners are planning to produce 23 million cubic meter per day of natural gas.

For the gas treatment, the gas processing facilities will operate by heating and separation for:

 – Conventional gas dehydration

 – Dew point control

 – Condensate stabilization

 In selecting Hyundai Heavy Industries to award the $1.1 billion topsides package, Statoil and its partners choose the solution to facilitate the integration of the modules with the SPAR platform where HHI is involved with Technip.

With this scheme, where Hyundai Heavy Industries is in charge of the SPAR and processing equipment while Technip is in charge of the subsea systems, Statoil, OMV and ConocoPhillips expect Aasta Hansteen project to come on stream in 2017.

For more information and data about oil and gas and petrochemical projects go to Project Smart Explorer

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