Statoil selects concept for Mariner heavy oil development offshore UK

By OGJ editors

Statoil selected a steel jacket production, drilling, and quarters platform with a floating storage unit for developing Mariner heavy oil field on Block 9/11a offshore the UK.

The company expects to make a final investment decision in late 2012 and produce first oil in late 2016.

Mariner heavy oil requires pioneering technology, Statoil said. It explained that because of the expected low well flow rates and early water breakthrough, the development will need many wells, artificial lift, and a process designed to handle large liquid rates and oil-water emulsions.

Because of the limited number of well slots on the platform, Statoil plans to use multibranch wells, sidetracks, and reused slots to reach 145 production and injection targets.

The field, discovered 30 years ago, had previously been the subject of several development studies by various operators.

The company also has slated the development of Bressay heavy oil field 1 year after Mariner to ensure transfer of the learning and synergies from the Mariner project, Statoil said. Bressay lies in UK Blocks 3/27b, 3/28 a and b, and 9/2a and 3a.

Statoil expects to invest £6 billion in developing Mariner and Bressay.

Bressay and Mariner fields contain 11-14° gravity oil with a 64-550 cp viscosity.

Statoil has extensive heavy oil experience, including the development of Grane field off Norway and Peregrino field off Brazil.

Statoil holds a 65.11% interest in Mariner. Its partners are Eni UK Ltd. 28.89%, and Nautical Petroleum PLC 6%.

In Bressay, Statoil holds 81.625% with Shell UK Ltd holding the remaining 18.375%.

Did You Like this Article? Get All the Energy Industry News Delivered to Your Inbox

Subscribe to an email newsletter today at no cost and receive the latest news and information.

 Subscribe Now


Logistics Risk Management in the Transformer Industry

Transformers often are shipped thousands of miles, involving multiple handoffs,and more than a do...

Secrets of Barco UniSee Mount Revealed

Last year Barco introduced UniSee, a revolutionary large-scale visualization platform designed to...

The Time is Right for Optimum Reliability: Capital-Intensive Industries and Asset Performance Management

Imagine a plant that is no longer at risk of a random shutdown. Imagine not worrying about losing...

Going Digital: The New Normal in Oil & Gas

In this whitepaper you will learn how Keystone Engineering, ONGC, and Saipem are using software t...