Optimization and automation of the semi-submersible platforms mooring design
- PETROBRAS, Rio de Janeiro (Brazil). Production Dept.
- State Univ. of Campinas (Brazil). Dept. of Petroleum Engineering
There are a few calculation programs around the world used for determining the main aspects of the Mooring Design of Semi-Submersible Platforms . These programs bold a worldwide acknowledgement and their results are actually reliable. But they require many runs to get a solution that comply with the Classification Society requirements. This paper presents some procedures in order to optimize the semi-submersible mooring design as well as to make it automatic. Regarding the optimization philosophies, the following aspects are treated: (1) the optimization of the platform heading and the mooring pattern based on the spreading of the environmental forces; (2) the searching for the optimum mooring line composition in an automatic mode. Basically, the paper`s main goal is to introduce some methods to find the lowest cost solution for the mooring system in a short time. All of these methods were computationally implemented creating the intelligent system named PROANC, which deals with the semi-submersible mooring design in a quasi-static and deterministic approach. It should be noted that the proposed system exerts a strong appeal as a design tool for feasibility studies of a given oil field and its quasi-static results can be directly applied to a mooring program capable of performing dynamic analysis. Finally some simulations are executed for different water depths and its final results, including the expended time to run, are presented in order to prove the PROANC system wide potential as a design tool.
- OSTI ID:
- 55719
- Report Number(s):
- CONF-940230-; ISBN 0-7918-1264-2; TRN: IM9525%%400
- Resource Relation:
- Conference: 13. international conference on offshore mechanics and Arctic engineering (OMAE-13), Houston, TX (United States), 27 Feb - 3 Mar 1994; Other Information: PBD: 1994; Related Information: Is Part Of OMAE 1994. Volume 1: Offshore technology; Chakrabarti, S.K.; Morrison, D.; Williams, A.N.; Ertekin, R.C.; Maeda, Hisaaki; Pantazopoulos, M.S. [eds.]; PB: 492 p.
- Country of Publication:
- United States
- Language:
- English
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