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China: GMC and Horton Wison Deepwater Develop Buoyant Towers for Shallow Water Fields

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GMC and Horton Wison Deepwater confirmed their Joint Venture established to design and supply innovative Buoyant Towers for shallow water fields.

Kevin Chell, CEO of the joint venture, stated “The Buoyant Tower concept draws on the proven technology of the cellspar and the design provides multiple benefits for fields where other concepts would be problematic requiring high capital costs and expensive crane barges for installation. The buoyant tower can operate in water depths up to 600 feet and can be relocated allowing small marginal plays to be exploited in a cost effective manner. The design allows for hydrocarbon storage if needed, can eliminate separate shallow water drilling units and provides a high level of flexibility for the operator.”

First Project

The benefits of the design were recognized and adopted by BPZ Energy for their new platform at the Corvina field offshore Peru. The tower is composed of four cylindrical cells and is connected to the seabed by a single suction pile which is integral to the hull structure. The tower and decks with the production equipment will be transported from the fabrication yard to Corvina on a submersible heavy lift ship. After upending, fixed and variable ballast will be pumped into the hull to provide stability for the platform.

The CX-15 shallow water tower is well on track for a summer 2012 installation and will be the first application of this design. The platform is designed for 12,200 barrels of oil per day, gas compression capacity of 12.8 million standard cubic feet per day and produced water handling and injection capacity of 3,500 barrels per day. A total of 24 drill slots will be available, some of which will be used for gas and water reinjection wells. The CX-15 platform will be located about one mile from the existing CX-11 Corvina platform, with both platforms interconnected via a series of subsea pipelines.

The JV completed the FEED scope in 2011 which led to detailed design for the buoyant tower. Fabrication is underway at Wison Offshore and Marine’s yard in Nantong, China. GMC are also providing project management and installation services for the CX-15 platform.

Jim Maher, COO of the JV, commented “We are pleased to be working with BPZ Energy on this important project which draws upon deepwater technology and applies it in the shallow water arena.”

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USA: Eight Firms Plan to Develop Wind Farms Offshore Virginia

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As reported by the Associated Press, the potential of the project, aimed at developing wind turbines in the U.S., situated off the Virginia cost and encompassing circa 113,000 acres in the Atlantic Ocean, has been recognized by numerous investors including European ones.

The federal Bureau of Ocean Energy Management, in charge of supervising offshore wind development, published the names of companies that submitted the necessary documentation in order to be eligible for project implementation, those being:

Arcadia Offshore Virginia LLC, New Jersey based branch of Arcadia Windpower, Cirrus Wind Energy Inc., based in Nevada; enXco Development Corp., based in California; Fishermen’s Energy LLC, based in New Jersey; Iberdrola Renewables Inc., an American subsidiary of a Spanish company with offices on the West and East coasts; Orisol Energy US Inc., another Spanish offshoot with American offices in Michigan; Apex Virginia; and Dominion Resources.

The paperwork will be scrutinized by the government regulators, in order to determine what company meets the technical and economic prerequisites in order to be able to push forward with the project implementation.

On March 27, Virginia regulators gave their consent to what might be the first offshore wind turbine built in the United States. Even though the prototype turbine still awaits approval of the U.S. Coast Guard and Army Corps of Engineers, it is said that it will be located in Chesapeake Bay and be able to meet the power needs of 1,250 households. The capacity of the wind turbine will equal to 5 megawatts of electricity and it should be ready for production by the end of 2013.

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