Advanced mooring method for installation of Enserch Garden Banks 388 FPF mooring legs
In the fall of 1994 HeereMac v.o.f installed the 12 mooring legs for Enserch Exploration`s Floating Production Facility in Garden Banks Block 388 in the Gulf of Mexico with the SSCV Balder. The installation of the catenary mooring system, each leg comprising several varying sections of spiral strand wire and chain, required sufficient handling and maneuverability power of the vessel, while enough holding capacity and stiffness of the system had to be provided. The most important aspects of the actual installation of the mooring legs are explained, for example, the use of a purpose built tipping winch. The method selected by HeereMac for station-keeping the Balder was to use a minimum number of anchor lines in combination with a tug, in order to maintain position and at the same time have an easy and controlled method of maneuvering to a new position. The method of station-keeping the SSCV in this way is part of a development towards full position control with a spread of tugs. In this paper the station-keeping system is described and the offshore experiences with the system are discussed. Some future developments with respect to tug-assisted station-keeping systems are highlighted.
- OSTI ID:
- 160710
- Report Number(s):
- CONF-950501-; TRN: IM9603%%292
- Resource Relation:
- Conference: 27. offshore technology conference, Houston, TX (United States), 1-4 May 1995; Other Information: PBD: 1995; Related Information: Is Part Of 27. Annual Offshore Technology Conference: 1995 Proceedings. Volume 3: Construction and installation/field drilling and development systems; PB: 591 p.
- Country of Publication:
- United States
- Language:
- English
Similar Records
The subsea deployment and installation of flexible pipe catenaries for the Enserch Garden Banks 388 Freestanding Production Riser
Physical simulation of the response of the Enserch Garden Banks 388 FPF/free standing rigid riser to wind, waves, and current