Project Profile
Value: US$1.93 billion
Location: PL475 BS, Block 6406/3 and 6407/1, Norwegian Continental Shelf
Recoverable reserves: 180 million barrels of oil equivalent (boe)
Water Depth: 300m
Start-up year: 2017
The Maria discovery in the Garn formation lies in a large northeast-southwest trending Jurassic horst block. The Garn Formation forms the reservoir of several producing fields and discoveries in Mid Norway, including the Trestakk, Smørbukk Sør, Tyrihans, and Tyrihans North structures, all adjacent to the Maria discovery. Production Licence 475 BS is in block 6406/3 and 6407/1 and is located between the Tyrihans Nord and Smørbukk Sør fields and next to the Trestakk discovery. It is situated about 200 km off the coast of Norway in water depth of 300 m.
Field Development
The development solution chosen for the field is a production facility on the sea bed, connected to the Kristin, Heidrun and Åsgard B production platforms.
- Kristin platform will process the Maria well stream
- Heidrun platform will supply water for reservoir injection
- Åsgard B via the Tyrihans D field will provide gas lift.
Processed oil will be shipped to the Åsgard field for storage and offloading to shuttle tankers. Gas will be exported via the Åsgard Transport System to Kårstø.
Operators:
Wintershall: Operator with 50% interest
Petoro AS: 30% interest (Acquired from Faroe)
Centrica Resources: 20% interest
Contractors:
Dolphin Drilling: Semi-submersible \"Borgland Dolphin\" contract
Fred.Olsen Energy ASA: Drilling contractor
Petrolink: Provision of consultancy services
Transocean: Drilling contractor for the semisubmersible Transocean Arctic
FMC Technologies’ Norwegian subsidiary FMC Kongsberg Subsea AS.: Subsea contract worth approx. NOK 1.8 billion (US$280 million)
Nexans: Supply of Direct Electrical Heating (DEH) technology. The DEH riser will connect the Kristin and Maria fields in the Norwegian Sea with the Kristin platform, ensuring the constant flow through pipelines. The delivery, worth approximately US$9 million, will replace an existing DEH riser cable from the Kristin platform. The new riser cable will connect the Kristin platform with a subsea connection box, and will contain four cores to enable the operation of one DEH line to the Kristin field and one to the Maria field.
DNV GL: US$3.95 million deal with Wintershall to carry out verification work on subsea equipment for the project.
Reinertsen: Contract to prepare Kristin platform, located in the Norwegian Sea, for tie-in with Wintershall’s Maria field. The contract is worth NOK 600 million (US$75.37 million). Maria field will be connected with the producing platform Kristin, Heidrun and Åsgard B via two templates located on the ocean floor. The installation work will take place between 2016 and 2018, with production scheduled to start in 2018.
DeepOcean: Riser installation contract from Statoil for two platforms in the Norwegian Sea that will serve as a tie-back destination for the nearby Maria development
Aibel: Contract for work related to planned water injection from the Heidrun platform to the Maria Field.
Subsea 7: Pipeline and subsea construction (PSC) contract worth approximately US$300 million. The PSC contract includes a comprehensive engineering, procurement, construction and installation (EPCI) agreement for three major pipeline systems linking the Maria development as a subsea tie-back to existing infrastructure in the Norwegian Sea. Subsea 7 will also install the subsea production system and control umbilicals procured by Wintershall Norge through its contract with FMC in October 2014.
DNV GL: (2015) Contract by Wintershall Norge AS to provide a frame agreement for global inspection services for its developments offshore Norway. The overall contract is expected to exceed NOK 10 million (approx US$1.2 million). The term of the contract is five years, with an option for two, two-year extensions and covers all Wintershall’s projects on the Norwegian Continental Shelf (NCS). DNV GL will perform inspection, test and surveillance activities on a worldwide basis as instructed by Wintershall Norge AS. The scope of services includes: review of the Inspection and Test Plan (ITP), examination of materials, products, manufacturing processes, work procedures and/or services at Wintershall’s contractor’s premises. DNV GL will also examine contractor’s procedures, documents, quality performance and compliance with governing standards and specifications. The frame agreement will be coordinated by the DNV GL Stavanger office with resources from the Inspection Division. The frame agreement is now underway and inspection and surveillance work is planned to be carried out across a number of locations including Germany, Italy, Greece, Norway and Malaysia, where subsea equipment components and structures will be manufactured. DNV GL is also the sole supplier for the combined role of Independent Verification Body (IVB) and Third Party Design Verification scope for the subsea, umbilicals, risers and flowlines (SURF) part of the Maria field development project.
Odfjell Drilling: Drilling cotract using the semi-submersible Deepsea Stavanger for the drilling of production wells on the Maria field in the Haltenbanken area on the Norwegian Continental Shelf. The firm contract is for six wells with an expected duration of 574 days and an estimated contract value of USD 175 million. Contract commencement is estimated to 1 April 2017. The contract additionally contains a one-well option prior to the firm contract and two wells after the firm period. The estimated contract value of the optional wells is US$98 million.
Expro: Five year subsea contract which includes multi-well completions with two optional two-year extensions. The scope of the contract includes the supply of a complete workover riser system including surface test tree and subsea landing string systems. Operations, maintenance and engineering support services will also be provided for the system including global riser analysis and life cycle fatigue monitoring.
Halliburton: To provide drilling-associated services on Wintershall’s Maria development in the Norwegian Sea. The agreement, which contains incentives for efficient well deliveries, can also be used for other Wintershall activities. Wintershall and Halliburton will now start work detailed engineering work prior to the start of drilling for the Maria development in the first half of 2017. Early next year (2017), Halliburton will provide services supporting the drilling of six development wells on Maria’s subsea templates located at a depth of around 300 metres on the Halten Terrace in the Norwegian Sea. Through the contract Halliburton will supply drilling services and associated tools, drilling and completion fluids, cementing, and coring. There is also an option for plugging and abandoning services. The four-year contract contains options to extend for up to four additional years. (May, 2016)
Tendeka: To supply well completion equipment and services for the Maria development. The contracts have been given to six companies including Halliburton which will provide the largest share of the work. Tendeka, TCO, Schlumberger, PTC and Interwell will supply the remaining equipment and services. The four-year contracts, which can be extended for up to four additional years, include supply of downhole valves, packers, liner hangers, injection systems, gas lift equipment and sand screens. Wintershall and its partners will drill six subsea wells on the Maria field located at a depth of around 300 metres on the Halten Terrace in the Norwegian Sea in 2017. The wells will be drilled by Odfjell Drilling’s sixth-gen, ultra deepwater and harsh environment semi-submersible Deep Sea Stavanger. (May, 2016)
TCO: Contracted to supply well completion equipment (4 year contract - May 2016)
Schlumberger: Contracted to supply well completion equipment (4 year contract - May 2016)
PTC:Contracted to supply well completion equipment (4 year contract - May 2016)
Interwell: Contracted to supply well completion equipment (4 year contract - May 2016)
IKM Cleandrill: Contract for development drilling campaigns, as well as an extension option for future exploration drilling. (November, 2016)
CHC Group: Contracted to provide helicopter services during the drilling program at the Maria Field.
Subcontractors:
Fugro: Contracted to deploy the Q1400 trenching system under a contract with Subsea 7. (June, 2016)
Rosenberg WorleyParsons AS: A contract with Subsea 7 for the fabrication of subsea structures and pipes. (October, 2016)