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Mooring Systems - Tower Yoke

FPSO Bohai Shi Ji - China

SOFEC designed and provided project management for a tower yoke mooring system for a new 172,000 dwt purpose-built double-hull vessel. CNOOC's nominated fabrication and installation contractor was China Offshore Oil Engineering Corporation (COOEC).

The tower yoke mooring system is located in the QHD32-6 field development in Bohai Bay China, in a water depth of 20m. The FPSO generates and provides medium voltage electrical power to six fixed unmanned satellite platforms. The medium voltage power transmission to the platforms is achieved through a medium voltage slipring assembly mounted on the rotating tower topsides module. The medium voltage power is used to drive 128 submersible pumps installed in the QHD32-6 reservoir. The FPSO is designed to produce a total of 270,000 BPD of combined fluids including 80,000 BPD of crude oil. Processed crude is exported through a tandem offloading arrangement.

The SOFEC mooring system is DnV classed.

General Description
Location: Qinhuangdao (QHD32-6) Field, China
Client Name: China National Offshore Oil Corporation (CNOOC)
Contract Awarded: December  1999
Installation Date: August 2001
Water Depth: 20m (66ft)
Tanker Size: 172,000 dwt
First Oil: October 2001
Vessel Type: Purpose Built FSPO
Storage Capacity: 1,000,000 bbls
Fabrication: China
Region: Asia Pacific
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