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Offshore Oil & Ocean Engineering


August 2015 Issue

Fugro Americas Collects Data For Caribbean Coring Project
Fugro’s premier geophysical survey vessel, the Fugro Americas, successfully completed data collection in June for a geochemical coring campaign in the Caribbean. The project marks the maiden voyage of the newbuild vessel.

The integrated project comprised 141 piston cores and seven heat flow measurements that yielded more than 1,500 biological and geochemical samples.

2H Offshore Gets Verification Contracts for Stampede Field
2H Offshore has been awarded two separate contracts, one by Hess Corp. and one by Enbridge Energy Co., to verify the design, fabrication and installation phases of the Steel Catenary Risers (SCRs) for the Stampede field development in the Gulf of Mexico.

The Stampede field is operated by Hess. Enbridge plans to build, own and operate the oil export pipeline from the Stampede tension leg platform (TLP). The subsea development is situated in Green Canyon blocks 468, 511 and 512 in the central U.S. Gulf of Mexico, in water depths of approximately 3,500 ft.

The primary objective of 2H’s verification work is to verify the acceptability of the Stampede SCR design, fabrication methods and installation activities for both Hess and Enbridge, and ensure that there is consistent adherence to the relevant codes, standards and specifications. The project award follows 2H’s successful completion of the design, fabrication and installation verification work for the production SCRs in the Hess-operated Tubular Bells field development last year.

World’s First Subsea Compressors Installed for GSC
The Gullfaks subsea compressor project (GSC) completed successful structure and module installation campaigns for the subsea station in May and June, Statoil announced. The compressors were installed at the end of June.

“This is the first compressor of its kind in the world,” said Steinar Konradsen, owner representative for the project. “Subsea wet gas compression is a game changer for subsea processing, and an important technology to increase recovery also on other fields.”

Subsea wet gas compression at Gullfaks C will add 22 million barrels of oil equivalent, and extend plateau production by about two years.

GSC has now entered the last phase: testing and preparing for hand-over and start-up in the last quarter of this year.

Statoil is currently implementing two subsea compression projects at Åsgard and Gullfaks on the Norwegian Continental Shelf. The projects represent important pieces of the jigsaw puzzle of designing the subsea factories of the future.

SAMS Starts Testing New Gavia AUV
The Scottish Association for Marine Science (SAMS) has been testing its new AUV, recently acquired from Teledyne Gavia.

SAMS hosts the submarine-like robot on behalf of the Marine Autonomous and Robotics (MARS) community, run by the U.K.’s Natural Environment Research Council (NERC).

The AUV, which has been named “Freya” after the Norse god of beauty, can go to depths of 500 m and can carry out a number of tasks, including seabed mapping. Initial archaeological surveys were planned for July.

Siem Spearfish to Assist Solan Field Ops
Harkand has been awarded a contract by Premier Oil to support the operator activities on the Solan field development in the West of Shetland.

The multipurpose service vessel Siem Spearfish, which is on long-term charter to Harkand, will begin mobilization for the campaign. It will perform walk-to-work duties for the ongoing commissioning work on site.

The Spearfish is being fitted with an Ampelmann active motion compensated gangway that will allow personnel to walk onto the Solan platform safely, even in high wave conditions.

The Spearfish was due to arrive on site in Block 205/26a in the UKCS in June, with the work expected to run until August.

OIS to Decommission Subsea Well in North Sea
Offshore Installation Services (OIS) has been awarded a contract by Antrim Energy to decommission four subsea wells in the central North Sea. The offshore scope of the campaign, which also includes six wells from Centrica Energy, will include complete offshore and onshore project management, vessel charter, equipment and personnel.

The wells will be abandoned using Claxton’s suspended well abandonment tool (SWAT), a diverless, vessel-based approach, and will be completed as part of a multioperator campaign this summer.

The offshore campaign will be conducted from an anchor-handling tug supply vessel (AHTS), the Island Valiant. During phase one, SWAT will be deployed through the vessel’s moon pool to set cement plugs in the bore and across all the casing annuli. The second phase will use an abrasive severance system for the cutting of the wells and sequential removal from the seabed. This will conclude the offshore operations.

DNV GL to Conduct Global Inspections Offshore Norway
DNV GL has been selected 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 $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). It will initially be used for the ongoing Maria development.

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 and 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.


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