深水工程船吸力锚锚点结构设计
Structural design of suction pile anchor pad eye for deep water engineering vessel
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- 引用格式:
-
徐田甜,高德欢,张美荣.深水工程船吸力锚锚点结构设计[J].天然气与石油,2022,40(3):110-116.doi:10.3969/j.issn.1006-5539.2022.03.017
XU Tiantian, GAO Dehuan, ZHANG Meirong.Structural design of suction pile anchor pad eye for deep water engineering vessel[J].Natural Gas and Oil,2022,40(3):110-116.doi:10.3969/j.issn.1006-5539.2022.03.017
- DOI:
- 10.3969/j.issn.1006-5539.2022.03.017
- 作者:
- 徐田甜1 高德欢2 张美荣3
XU Tiantian1, GAO Dehuan2, ZHANG Meirong3
- 作者单位:
- 1. 中海石油(中国)有限公司天津分公司, 天津 300459; 2. 中海油安全技术服务有限公司, 天津 300452; 3. 海洋石油工程股份有限公司, 天津 300451
1. CNOOC China Ltd., Tianjin Branch, Tianjin, 300459, China; 2. CNOOC Safety Technology Service Co., Ltd., Tianjin, 300452, China; 3. China Offshore Oil Engineering Company, Tianjin, 300451, China
- 关键词:
- 吸力锚;铸钢锚点;海上安装误差;有限元分析;热处理
Suction pile; Cast anchor pad eye; Offshore installation tolerance; Finite element analysis; Heat treatment
- 摘要:
- 深水油气田工程船(以下简称深水工程船)采用半张紧式多点系泊系统,海底吸力锚锚点结构设计应保证系泊安全。介绍了工程船所属公司的企业标准对系泊系统和吸力锚锚点设计、海上安装的技术要求;应用ARIANE
7软件计算了工程船的最大平面位移和系泊线的最大张力;应用数值迭代求解控制微分方程分析了海底链嵌入土中的反悬链线形态,确定了吸力锚锚点处的系泊荷载;应用ABAQUS软件分析了吸力锚筒体以及锚点的结构强度和稳定性,计入了连接器对锚点主板的杠杆效应,并考虑了吸力锚筒内V形翼板建造侧向变形的影响;锚点采用了低碳硅锰铸钢材质,通过热处理控制保证机械和耐磨性能。吸力锚锚点结构设计可为类似深水工程船吸力锚设计提供借鉴。
The semi-taut spread mooring system is adopted for deep water engineering vessel, and the structural design of anchor pad eye on suction pile shall guarantee mooring safety. This paper introduces the technical requirements of mooring system and suction pile anchor pad eye design and offshore installation in the Company's General Specifications. The maximum offset of engineering vessel and tension of mooring line is calculated by ARIANE7 software. The inverse catenary shape of bottom chain embedded in soil is analyzed by numerical iterative solution of governing differential equations method so as to determine mooring load at anchor pad eye on suction pile. The structural strength and stability of suction pile caisson and anchor pad eye is analyzed by ABAQUS software, in which the links lever arm effect on anchor pad eye main plate is simulated, and the influence of lateral fabrication deformation of V-wing plate inside suction pile caisson is considered. The anchor pad eye is made of low-carbon silicon manganese cast steel, with the stress-relief done by heat treatment to guarantee the mechanical and wear resistance properties. This suction pile anchor pad eye design can be used as a reference for engineering design of deep water suction pile of the same nature.
