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Rigless suspended-well abandonment

Offshore Installation Services (OIS), an Acteon company, has successfully completed its 16th rigless suspended-well abandonment campaign involving multiple operators in the Southern North Sea. The multi-operator model for programmes of this kind can deliver significant customer benefits in terms of cost-effectiveness. A total of nine mudline wells in categories 1, 2.1, 2.2 and 2.3 were abandoned during the operation including four on behalf of GDF SUEZ E&P UK Ltd. and two for RWE Dea.

The scope of work for OIS, part of Acteon’s activity and resource management business, included the initial approval processes; formulating the contracting strategy; developing detailed procedures; procurement; appointing specialist service providers; overall logistics; and recycling and disposing of the recovered wellheads.

OIS conducted the two-phase abandonment operation from a chartered DP2-class anchor-handling tug supply vessel (AHTS). During phase one, a proprietary twin low-pressure packer tool from Acteon sister company Claxton Engineering Services Ltd. was deployed through the vessel’s moon pool to set cement plugs across all the casing annuli. The second phase involved abrasive severance of the wells using Claxton Engineering’s SABRE cutting tool.

“We have a strong track record in providing commercially efficient decommissioning solutions which are particularly important for non-revenue-generating assets,” said OIS vice president of commercial and business development Tom Selwood. “Multi-operator campaigns such as this, enable operators to share the associated costs which, when combined with the rigless nature of our offering, makes this the most cost-effective way to comply with UK oil and gas decommissioning legislation.”

Max Proctor, GDF SUEZ E&P UK drilling manager, added, “We are committed to fulfilling our responsibility to the environment as an operator and are leading the way in the North Sea with the decommissioning of redundant wells. We started this campaign immediately after the request came from DECC for operators to fully abandon suspended wells by reviewing the history of the wells and confirming the status of each with an independent well examiner. OIS is a valued partner of GDF SUEZ and the success of this project is testament to the team’s strong technical skills and experience.”

Since 1996, the OIS team has successfully completed more than 100 well decommissioning projects without a single lost-time incident.

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Scana to Supply Riser Forgings to Australia and North Sea

Scana Industrier ASA has through its subsidiary Scana Subsea, been awarded contract to deliver machined riser forgings to an undisclosed client.

The riser systems are intended for North Sea and Australia operations.

The initial contract value is 27 MSEK (USD 4.09 million). The contract contains additional optional work as machining, welding, assembly and testing,  which may increase the total contract value higher.

The projects are planned to start immediately and deliveries will commence in 3rd quarter 2013. The contract will also involve Scana Steel Björneborg, Scana Steel Söderfors and Scana Machining, in addition to Scana Subsea fronting the contract.

Scana to Supply Riser Forgings to Australia and North Sea| Offshore Energy Today.

Helix ESG’s T1200 Trencher Completes First North Sea Oil and Gas Project

Helix Energy Solutions Group’s new T1200 burial and trenching unit is quickly establishing a positive track record following the completion of an oil and gas project in the North Sea. The T1200 features a 1,200hp jet trenching spread, capable of burying product in water depths to 3,000m (10,000ft).

T1200 was deployed to bury a 14km long (8.7 mile), 10 inch export pipeline that included a 3 inch piggyback methanol line. The project specialization called for the line to be buried 2m (6.5ft) deep, with one meter of covering fill. The subsea trenching unit’s water jetting system trenched and simultaneously buried the pipeline under 1.4m (4.5ft) of sand in a continuous run that took just 48 hours.

The successful project is the T1200’s first oil and gas operation, and proves the versatility of the asset which has also been deployed to trench and bury high voltage undersea cables used to transport electricity from offshore wind farms to onshore power stations.

The T1200, operated by Helix ESG’s robotics subsidiary, Canyon Offshore, performed its first trenching job in early July 2012 at the Sheringham Shoal offshore wind farm trenching and burying an approximately 700m (2,300ft) long power cable between the wind turbines. Out of the 80 sections required in the field, the T1200 trenched and buried 37.

The T1200 was built in the UK by Forum Energy Technologies’ Perry Slingsby Systems ROV brand. The T1200’s design was based around the time proven T750 trencher( also owned and operated by Canyon Offshore) but has over 50 percent greater power and the capacity to trench larger diameter products (36 inches) to burial depths of 3m (10ft) depending on soil strength.

Subsea World News – Helix ESG’s T1200 Trencher Completes First North Sea Oil and Gas Project.

ExxonMobil Seeks ROV for Operations in Black Sea (Romania)

ExxonMobil Exploration and Production Romania Limited Nassau (Bahamas) is seeking for diving services using a remotely operated vehicle for a drilling programme in the Black Sea.

The objective of the framework agreement is for ExxonMobil to be able to access the resources identified as necessary for the provision of services under the contract.

Minimum and maximum operating 380 – 1,309 days of operation with mobilisation and demobilisation days are included in the tender.

The project has a value between USD8 million and USD30 million with duration of 48 months.

ExxonMobil is expecting the tenders to be submitted until November 06, 2012.

Subsea World News – ExxonMobil Seeks ROV for Operations in Black Sea (Romania).

 

Baker Hughes Bringing High-End Well Stimulation Vessel to North Sea

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Baker Hughes Incorporated, announced that its subsidiary has chartered a new state-of-the-art pressure pumping vessel that will provide offshore stimulation services to Maersk Oil in the North Sea. Upon completion, scheduled for late 2013, the Blue Orca(TM) will become the eighth vessel in the Baker Hughes fleet.

“We are pleased to be working with Maersk Oil as we expand our current fleet into the North Sea,” said Art Soucy, Baker Hughes’ President of Global Products & Services. “Our full cadre of world-class stimulation vessels offers customers the capacity, performance and redundancy for round-the-clock operations that are needed in today’s offshore plays. We are committed to operating safely and efficiently while continuing to build on our pressure pumping market leadership and the challenging offshore environments where operators need us to be.”

The Blue Orca will be rated to 15,000 psi and will offer among the largest fluid and proppant carrying capacities in the world. It will provide 15,000 hydraulic horsepower pumping capacity and the ability to pump at rates well in excess of 60 bpm. Engineering work on the marine and stimulation systems has already begun.

“Stimulation of long horizontal wells is one of Maersk Oil’s key technologies and vital for economic development of our tight chalk reservoirs,” said Mary Van Domelen, Maersk Oil’s Stimulation Team Leader. “We appreciate the opportunity to work with Baker Hughes to deliver a new state-of-the-art stimulation vessel and look forward to welcoming the Blue Orca to the North Sea.”

The Blue Orca will join Baker Hughes’ other stimulation vessels – including the company’s newest additions to the Gulf of Mexico: Blue Tarpon and the Blue Dolphin. The vessels support offshore completion operations and will be equipped to support high-rate and high-volume multi-zone fracturing operations.

“Our pressure pumping vessels offer enhanced safety systems with redundant back-up blending and pumping capabilities,” said Lindsay Link, Baker Hughes’ President of Pressure Pumping.When it comes to performing multi-zone, high-rate, high-pressure completions, our vessels are reliable, efficient and minimize delays in high-cost offshore environments, where time is of the essence for the operators on behalf of whom we are working.”

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