Phase: Execution
Country: United Kingdom
Owner/Operator(s): Statoil ASA
Categories: Offshore Production Facilities Offshore Field Development (Drilling-Subsea)
Type: Oil Field FSO - Floating Storage and Offloading Jackets
Updated: 10 Jun 2014

Mariner Project Images

Project Description

The Mariner Field is located on the East Shetland Platform of the UK North Sea approximately 150km east of the Shetland Isles. The Mariner oil field development entails investments of more than USD 7 billion and is the largest new offshore development in the UK in more than a decade and is expected to start production in 2017. The field is estimated to produce for 30 years, with average production of around 55,000 barrels of oil per day over the plateau period from 2017 to 2020.

The Mariner Field consists of two shallow reservoirs, the Maureen Formation and the Heimdal Sandstones of the Lista Formation, with nearly 2 billion barrels of oil in place and expected reserves of more than 250 million barrels of oil . Both formations yield heavy oil of around 12 to 14 API.

The field will be developed with a production, drilling and quarters (PDQ) platform, based on a steel jacket, with 50 active well slots, and a floating storage unit (FSU) of 850,000 bbls capacity. In addition a jack-up rig will be used for the first 4 - 5 years.

Due to the low well flow rates and early water break-through there is a need for many wells and a process designed to handle large liquid rates and oil-water emulsions. All production wells will have stand-alone sand screens and electric submersible pumps (ESPs) for lifting.

Engineering and Construction

Aker Solutions London office provided a front-end engineering and design (FEED) study for the topsides.

Dragados Offshore S.A. was awarded an EPC Contract for the steel jacket in cooperation with UK-based SNC Lavalin Ltd. with the detailed engineering.

The contract award for the topside has been awarded to Daewoo Shipbuilding & Marine Engineering Co., Ltd. (DSME) with UK-based CB&I og Rig Design Services (RDS) as engineering subcontractors.

A contract for heavy lift operations was awarded to Saipem in the UK. The contract for a floating storage unit (FSU) and a drilling rig (cat J) will be awarded in Q2 2013. Invitation to tender for contracts on risers, pipelines, umbilicals, flowlines, power cables and marine operations will be issued in December with planned contract awards in Q2 2013.

Ownership and Operations

Statoil (61.1%) and operator, partners JX Nippon Exploration and Production (U.K.) Ltd(28.89%) and Alba Resources Limited (6%). Alba Resources Limited are a wholly owned subsidiary of Cairn Energy PLC.


Mariner Project News

Aker Solutions Sets Up Subsea Hub And Uses Aker Advantage Recruitment Agency To Ease MMO Overcapacity

SOURCE: Aker Solutions | 07 July 2014

Aker Solutions is transferring employees to a new subsea engineering hub in Stavanger and using the Aker Advantage recruitment agency to find work for more than 200 employees impacted by the slowdown in Norway's offshore maintenance and modifications market.

Aker Solutions Wins Five-Year Contract From Statoil For Mariner Project

SOURCE: Aker Solution | 27 June 2014

Aker Solutions secured a contract from Statoil to provide maintenance and modifications services for the Mariner oilfield development in the UK North Sea.

Statoil Awards Mariner Contracts To UK Suppliers

SOURCE: Statoil | 27 June 2014

Statoil (U.K.) Limited has awarded the maintenance and modification services contract for the Mariner field to Aker Solutions UK. The offshore services contract has been awarded to Stork Technical Services Limited, also based in the UK.

Statoil On Track With Mariner Field Development Project

SOURCE: Statoil | 03 September 2013

Statoil has started the build-up of its Aberdeen operating organisation and reported today at SPE Offshore Europe 2013 that the company and its partners are on track with the Mariner field development project.

Aker Solutions To Deliver Drilling Equipment Package For Mariner Platform

SOURCE: Aker Solutions | 03 July 2013

Aker Solutions won a contract from Daewoo Shipbuilding and Marine Engineering (DSME) to deliver a drilling equipment package for the production platform at the Mariner oilfield in the UK North Sea.

Subsea 7 S.A. Awarded US$170 Million Contract Offshore UK

SOURCE: Subsea 7 | 31 May 2013

Subsea 7 S.A. (Oslo Børs: SUBC) today announced the award of a contract valued at approximately US$170 million from Statoil for the Mariner field, located in the UK sector of the North Sea.

Noble Receives Contract Award For New Ultra-High Specification Jackup To Be Constructed For Mariner Project

SOURCE: Noble Corp. | 14 May 2013

Noble Corporation (NYSE: NE) today announced that the Company has been awarded a drilling contract by Statoil for a newbuild ultra-high specification jackup for use in the United Kingdom sector of the North Sea. The initial contract is for four years and is anticipated to commence during the third quarter of 2016.

Odfjell Drilling To Provide Platform Drilling On Mariner

SOURCE: Statoil | 10 April 2013

Statoil has awarded the contract for drilling services on the Mariner platform on the UK continental shelf to UK based Odfjell Drilling.

DECC Approves Mariner Field Development Plan

SOURCE: Statoil | 15 February 2013

The UK government's Department of Energy and Climate Change (DECC) today announced their approval of the field development plan put forward by Statoil and its co-venturers for the Mariner heavy oil field.

CB&I Announces Offshore Award

SOURCE: CB&I | 10 January 2013

CB&I (NYSE: CBI) announced today that it has been awarded a project valued in excess of US$250 million by Daewoo Ship building & Marine Engineering Co, Ltd. (DSME). This is a fourth quarter 2012 award.

Statoil Makes Investment Decision For The Mariner project

SOURCE: Statoil | 21 December 2012

Statoil has made the investment decision to develop the Mariner oil field development in the UK North Sea. The project entails investments of more than USD 7 billion and is the largest new offshore development in the UK in more than a decade.

Aker Solutions To Establish 1 700-Strong Engineering Hub In London

SOURCE: Aker Solutions | 07 June 2012

Aker Solutions aims to build up a 1 700-strong London engineering hub - thereby creating 1 300 new jobs - by 2015, as growth in global oil and gas markets drives demand for the company's technologies and services.

Statoil On Track With GBP6 Billion UK North Sea Project

SOURCE: Dow Jones Newswires | 08 September 2011

Norwegian energy giant Statoil ASA remains on track with its plan to invest GBP6 billion in the Mariner and Bressay heavy oil projects in the U.K. North Sea following the U.K. government reversed its decision on tax incentives for companies developing marginal fields.

Mariner Concept Presented - Statoil

SOURCE: Statoil | 08 September 2011

The concept chosen for the Mariner heavy oil project on the UK continental shelf includes a production, drilling and quarter (PDQ) platform based on a steel jacket, with a floating storage unit (FSU).

Statoil Postpones U.K. Oil Investment After Tax Hike

SOURCE: Dow Jones Newswires | 30 March 2011

Norwegian oil and gas firm Statoil ASA has postponed more than $10 billion of investments in the U.K. following a recent tax hike on oil production.

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