设计出一种新构型的半潜式钻井平台,采用数值模拟软件分析了新型平台在频域和时域的垂荡响应,并与双浮体四立柱结构和垂荡板结构的半潜式钻井平台进行了对比。介绍了新型平台的设计原理以及进行相关分析时的理论基础、数学模型和边界条件。结果表明,与双浮体四立柱和垂荡板结构平台相比,频域分析中新型平台的垂荡响应最大值和均值都显著减小;新型平台的垂荡固有周期显著增加,能有效防止共振的发生;系泊时域耦合分析中,新型平台的纵荡、横荡、横摇响应较小,且垂荡响应大幅减小;谱分析中新型平台有更小的垂荡响应谱峰值和更好的波频特性。新型平台防垂荡性能优异,结构合理、可行,可为新一代半潜式钻井平台的设计、选型提供参考。图8表2参18
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.
[1] HALKYARD J. Large spar drilling and production platforms for deep water oil and gas[M]//WANG C M, WANG B T. Large floating structures. Singapore: Springer Singapore, 2015: 221-260.
[2] WANG S, CAO Y, FU Q, et al. Hydrodynamic performance of a novel semi-submersible platform with nonsymmetrical pontoons[J]. Ocean Engineering, 2015, 110: 106-115.
[3] GUO Y, SONG L, ZENG H, et al. A field trial of a new system using both free-standing drilling riser and mid-depth BOP in the South China Sea[C]//The Twenty-fifth International Offshore and Polar Engineering Conference. Kona, Hawaii, USA: International Society of Offshore and Polar Engineers, 2015.
[4] MENG Q, ZHANG K, CHENG H, et al. An analytical method for predicting the fluctuation of thrust force during drilling of unidirectional carbon fiber reinforced plastics[J]. Journal of Composite Materials, 2015, 49(6): 699-711.
[5] HOLMES S, BHAT S, BEYNET P, et al. Heave plate design with computational fluid dynamics[J]. Journal of Offshore Mechanics & Arctic Engineering, 2001, 123(1): 2477-2485.
[6] 吴林键, 王元战, 肖忠, 等. 移动式海上基地连接构件恶劣海况下水动力响应[J]. 石油勘探与开发, 2016, 43(6): 997-1004.
WU Linjian, WANG Yuanzhan, XIAO Zhong, et al. Hydrodynamic response for flexible connectors of mobile offshore base at rough sea states[J]. Petroleum Exploration and Development, 2016, 43(6): 997-1004.
[7] KALIŃSKI K J, BUCHHOLZ C. Mechatronic design of strongly nonlinear systems on a basis of three wheeled mobile platform[J]. Mechanical Systems and Signal Processing, 2015, 52: 700-721.
[8] VAN DER TEMPEL J, SALZMANN D J C, KOCH J, et al. Vessel, motion platform, method for compensating motions of a vessel and use of a Stewart platform: U.S. Patent 8672288[P]. 2014-03-18.
[9] 尹海涛. Cell Spar平台垂荡板水动力性能分析研究[D]. 大连: 大连理工大学, 2010.
YIN Haitao. Hydrodynamic performance analysis of the heave plate of Cell Spar platform[D]. Dalian: Dalian University of Technology, 2010.
[10] 史琪琪. 深水锚泊半潜式钻井平台运动及动力特性研究[D]. 上海: 上海交通大学, 2011.
SHI Qiqi. Motion and dynamic characteristics research of the deepwater mooring semi-submersible drilling platform[D]. Shanghai: Shanghai Jiao Tong University, 2011.
[11] XU H, HAN S, BI X, et al. Atmospheric metallic and arsenic pollution at an offshore drilling platform in the Bo Sea: A health risk assessment for the workers[J]. Journal of Hazardous Materials, 2016, 304: 93-102.
[12] MARTIN T. High definition drilling rate of penetration for marine drilling: U.S. Patent 9217290[P]. 2015-12-22.
[13] KJERSTAD Ø K, METRIKIN I, LØSET S, et al. Experimental and phenomenological investigation of dynamic positioning in managed ice[J]. Cold Regions Science and Technology, 2015, 111: 67-79.
[14] DENG S, FAN H, SHEN W, et al. An optimization method of top tension in drilling riser-conductor system[J]. Arabian Journal for Science and Engineering, 2016, 41(7): 2707-2714.
[15] 方华灿, 陈世一. 半潜式钻井平台的升沉运动分析[J]. 石油学报, 1986, 7(1): 83-91.
FANG Huacan, CHEN Shiyi. Analysis of heave motion of semi-submersible drilling platform[J]. Acta Petrolei Sinica, 1986, 7(1): 83-91.
[16] 朱亚洲, 孙承猛, 张晓宇, 等. 自升式平台桩腿强度对弦管间距敏感性分析[J]. 石油勘探与开发, 2015, 42(5): 656-661.
ZHU Yazhou, SUN Chengmeng, ZHANG Xiaoyu, et al. Sensitivity of self-elevating unit leg strength to different chord space[J]. Petroleum Exploration and Development, 2015, 42(5): 656-661.
[17] 郭海强, 朱仁传, 缪国平, 等. 数值波浪水池中船舶水动力系数测试与分析技术[J]. 中国造船, 2008, 49(S1): 58-65.
GUO Haiqiang, ZHU Renchuan, MIAO Guoping, et al. Test and analysis technology of hydrodynamic coefficient of ship of numerical wave in the pool[J]. Shipbuilding of China, 2008, 49(S1): 58-65.
[18] 董艳秋. 深海采油平台波浪载荷及响应[M]. 天津: 天津大学出版社, 2005: 225-246.
DONG Yanqiu. Wave load and response of deep-sea platform[M]. Tianjin: Tianjin University Press, 2005: 225-246.
