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浮式钻井补偿绞车方案设计和性能仿真
黄鲁蒙1,张彦廷1,沈蓉1,王丽君2,李悦江2,陈敬凯1
(1.中国石油大学(华东)海洋物探及勘探设备国家工程实验室,山东青岛 266580;2.兰州兰石石油装备工程股份有限公司青岛分公司,山东青岛 266520)
摘要:
为提高海洋钻井作业的综合性能,开展电驱动绞车补偿系统的方案设计和控制策略研究。针对国外单绞车补偿系统,提出一种基于双绞车的升沉补偿方案,钻机游动轮系的运动和受力完全对称,具有传动效率高、安全性好等特殊优势。设计系统关键结构参数,并基于能量流分析对绞车升沉补偿工作能力及其影响因素进行理论计算和分析,提出一种基于位移补偿方式的钻井运动联合控制方案,采用外环平台升沉位移和井底钻压闭环、内环矢量变频电机转速闭环的串级结构,选择合适的外环控制算法,并利用基于Simulation X的系统模型开展控制性能仿真研究。结果表明:双绞车补偿系统在不同钻井工况下的补偿能力较强,钻井作业窗口较宽;该系统运行稳定,可以实现升沉补偿与自动送钻运动的联合控制,满足海洋钻井要求。
关键词:  海洋钻井  绞车升沉补偿  送钻  补偿能力  串级控制
DOI:10.3969/j.issn.1673-5005.2021.02.014
分类号::TE 924
文献标识码:A
基金项目:
Scheme design and performance simulation of floating drilling compensation winch
HUANG Lumeng1, ZHANG Yanting1, SHEN Rong1, WANG Lijun2, LI Yuejiang2, CHEN Jingkai1
(1.National Engineering Laboratory of Offshore Geophysical and Exploration Equipment in China University of Petroleum(East China), Qingdao 266580, China;2.Lanzhou Lanshi Petroleum Equipment Engineering Company Limited, Qingdao Branch, Qingdao 266520, China)
Abstract:
In order to improve the comprehensive performance of offshore floating drilling operation, the scheme design and control strategy of the electrical compensation winch were studied. In view of the single winch system, a double winch heave compensation scheme was proposed. The motion and force of the traveling gear train were completely symmetrical, and the gear train has special advantages of high transmission efficiency and good safety. The key structural parameters of the system were designed, and based on the analysis of energy flow, the compensation ability of winch heave and its influencing factors were calculated and analyzed theoretically. A joint control scheme of winch based on displacement control mode was proposed. The cascade control structure of outer ring heave displacement, drilling pressure closed-loop and inner ring vector variable-frequency motor speed closed-loop was adopted. The appropriate outer ring closed-loop control algorithm was selected. The simulation study of control performance was carried out by using the system model based on Simulation X. The results show that the double winch compensation system has a stable operation and can realize the joint control of compensation and bit feed motion. The simulation law meets the requirements of offshore floating drilling.
Key words:  offshore drilling  winch heave compensation  bit feed  compensation capability  cascade control ?偅j
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