View non-flash version
NEW MARKETS MOORING AN FF50 Zafiro Producer began life as an 1,087 ft. (331.3 m) long tanker, 184 ft. (56 m) in the beam with a depth of 86.6 ft. (26 m). She has a storage capac- ity of 1,770,000 barrels of produced crude oil and 570,000 barrels of ballast water. Fully loaded, she draws 67.5 ft. (20.5 m). She was formerly classified as a Very Large Crude Carrier (VLCC). Following conversion to an FPSO, she will be classed as an ABS A1 Floating Production and Storage System (FPSS). To keep the 268,000-dwt Zafiro Producer on sta- tion in 600 ft. (182.9 m) of water, Oceaneering Production Systems designed a 12-point catenary chain and wire rope mooring system. The lines are attached to the vessel's hull by newly installed chain stoppers, three each at bow and stern on the port and starboard sides. Additional reinforce- ment was added at these points to transmit the line loads directly to the hull. A portable hydraulic linear tensioner is required because the ship's mooring winches are not rated for the 1,660,000+ pound, 100 -year storm design loads of the chain stoppers. The mooring lines range in length from 4,010 to 4,150 ft. to accommodates the slope of the seabed, which ranges from depths of 450 to 1,000 ft. Each I ine consists of an upper section of 3 7/8 in. QRQ-grade chain, a middle section of 3 7/8 in. wire rope and a lower section of 4 in. QRQ-grade chain attached to a 65.6 or 78.7 (20 or 24 m) high holding power anchor. The environmental forces in the Zafiro's vicinity arrive at the location with a high degree of consis- tency. They are dominated by a persistent swell from the southwest and a coastal current flowing toward the northwest. To minimize roll and heave, the ship is moored with its stern to the swell and the current on the starboard beam. In this orientation, Zafiro Producer can accom- modate bow-to-bow mooring of shuttle tankers in tandem, down-current from the FPSO, so that the tankers would be carried away from the FPSO in the event of an emergency disconnection during offloading. Connected to the FPSO by a single hawser line, the tanker(s) will orient with bow into the current, minimizing the load on the FPSO mooring system. The anchors and mooring lines will be installed prior to the arrival of the FPSO with the upper ends of the lines buoyed with pendant lines. The preten- sioned lines will be passed by a support vessel to the FPSO where they will be secured in the chain stoppers and further tensioned by the portable line tensioner. wgust, 1996 GE Contract With IHI To Supply Gas Turbines For Malaysian Barge- Mounted Power Project GE Marine & Industrial Engines (M&I) has contracted with IHI to provide two GE LM2500 aeroderivative gas turbines for a barge-mounted power project in Malaysia. The project is slated for commercial operation in 1997. The two LM2500 gas turbine-generator sets will be built and provided by IHI for use by the Sabah Electricity Board (SEB). The gas turbines will run on distillate fuel in simple- cycle mode, with natural gas as a back-up. The 40 megawatts of electricity generated by State University of New York MARITIME COLLEGE Fort Schuyler COSPOLICH Continuing Education Fort Schuyler Six Pennyfield Avenue Throggs Neck, NY 10465 718-409-7341 Phone 718-409-7483 Fax REFRIGERATOR co. 949 Industry Road, Kenner, LA, 70062 USA Tel. 1-800-423-7761 Fax. [504) 469-1819 Circle 217 on Reader Service Card Circle 209 on Reader Service Card Circle 299 on Reader Service Card 77 An Aquamaster thruster can be rotated 380° around a vertical axis, generating omnidirectional controlled thrust. For total economy, superb maneuverability, maximum comfort and ruthless reliability, there is only one choice - the original Aquamaster 360°. Aquamaster AZIMUTH THRUSTERS AQUAMASTER-RAUMA, INC. 2315 N. Woodlawn Ave. Ste 103 Metairie, LA 70001 Phone (504) 883-8340 Fax (504) 883-8344 E-Mail 104147.614OcompuMrve.com K A M E WAGroup EXCELLENCE IN PROPULSION Part of the Propulsion Technology Division of Viewers PLC Our Nation's Oldest maritime academy offers excellent educational and training services for the international maritime industry. TANKER SAFETY • Tankship/Tankbarge Dangerous Liquids (USCG approved) • Inert Gas/Crude Oil Washing • Confined Space Entry • Vapor Recovery SIMULATION TRAINING • Bridge Team Management and Shiphandling • Liquid Cargo Operations • Radar and ARPA Training (USCG approved original radar endorsement and renewal) • GMDSS FIREFIGHTING Basic/Advanced Tankbarge Working With Your Company To Meet Your Training Requirements The Aquamaster Concept GIVE US THREE INCHES. And We Will Replace Your Old Marine Refrigerator. ,1. .• a Three inches clearance from the front. That's all we need to replace your old marine refrigerator with a Cospolich modular refrigerator. Do it yourself. No bulkhead or hatch cuts. No special skills or tools required. Kits come with easy, step-by-step instructions. Polarized wiring is pre-installed so it can't be plugged in wrong. With models from 20 cu. ft. to 200 cu. ft., all built to U.S. Navy standards, it's like having a refrigerator built to your specifications.
