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A new type of anti-heave semi-submersible drilling platform
- Source :
- Petroleum Exploration and Development, Vol 44, Iss 3, Pp 487-494 (2017)
- Publication Year :
- 2017
- Publisher :
- KeAi Communications Co., Ltd., 2017.
-
Abstract
- A new type of semi-submersible drilling platform is designed. The numerical simulation software is used to analyze the heave response of the new platform in the frequency domain and time domain, and the semi-submersible drilling platforms with double-floating four-column structure and heave plate structure are compared with the new platform. This paper introduces the design principles of the new platform and the theoretical basis, mathematical model and boundary conditions during correlation analysis. The numerical simulation results show that the maximum and mean values of the heave response of the new platform are significantly reduced in the frequency domain analysis compared with the double-floating four-column and the heave-plate structure platform; and the new platform has a significant increase in the natural heaving period of the new platform, which can effectively prevent the occurrence of resonance. In the mooring time domain coupling analysis, the surge, sway and roll response of the new platform is small, and the heave response is greatly reduced. In the spectral analysis, the new platform has a smaller peak response and better wave frequency characteristics. The new platform has excellent anti-heave performance, reasonable structure and feasibility, and can provide reference for the design and selection of new generation semi-submersible drilling platform. Key words: drilling platform, semi-submersible drilling platform, heave prevention, frequency domain analysis, time domain analysis
- Subjects :
- Engineering
Computer simulation
business.industry
010102 general mathematics
Energy Engineering and Power Technology
Geology
010502 geochemistry & geophysics
Geotechnical Engineering and Engineering Geology
Mooring
01 natural sciences
Software
Coupling (computer programming)
Geochemistry and Petrology
Frequency domain
lcsh:TP690-692.5
Economic Geology
Time domain
Boundary value problem
0101 mathematics
Surge
business
lcsh:Petroleum refining. Petroleum products
0105 earth and related environmental sciences
Marine engineering
Subjects
Details
- Language :
- English
- ISSN :
- 18763804
- Volume :
- 44
- Issue :
- 3
- Database :
- OpenAIRE
- Journal :
- Petroleum Exploration and Development
- Accession number :
- edsair.doi.dedup.....1fba9dc82bbb75ebcfd0fcf4c0b1aa04