海洋浮式钻井液压绞车升沉补偿系统设计

发布时间：2018-10-13 15:26

【摘要】：为了降低海洋钻井电动绞车补偿系统的能耗、实现升沉补偿运动与自动送钻运动的解耦控制,开展了补偿绞车的节能方法及控制策略研究。针对系统大惯性、大负载的特点,提出一种基于混合动力与液压能量回收的新型液压绞车补偿系统,通过被动液压马达承担钻柱的部分静载荷,通过液压二次调节元件克服运动过程中的其余载荷,同时利用液压蓄能器实现对系统位能与动能的周期性回收与再利用。提出一种基于升沉-送钻双位移闭环控制的软件解耦控制策略;设计了液压绞车补偿系统的串级控制结构;建立了补偿系统的仿真模型并研制了一套补偿绞车原理样机。仿真与实验结果表明,液压绞车补偿系统的解耦控制效果良好,相对于电动绞车补偿系统的节能效果明显。
[Abstract]:In order to reduce the energy consumption of marine drilling electric winch compensation system and realize decoupling control between heave compensation motion and automatic drilling movement, the energy saving method and control strategy of compensation winch are studied. In view of the characteristics of large inertia and large load, a new hydraulic winch compensation system based on hybrid power and hydraulic energy recovery is proposed, which takes part of static load of drill string through passive hydraulic motor. The hydraulic secondary regulating element is used to overcome the remaining loads in the course of motion, and the hydraulic accumulator is used to realize the periodic recovery and reuse of the potential energy and kinetic energy of the system. This paper presents a software decoupling control strategy based on hoisting and drilling double displacement closed loop control, designs the cascade control structure of the hydraulic winch compensation system, establishes the simulation model of the compensation system and develops a set of principle prototype of the compensation winch. The simulation and experimental results show that the decoupling control effect of the hydraulic winch compensation system is good, and the energy saving effect is obvious compared with the electric winch compensation system.
【作者单位】：中国石油大学海洋油气装备与安全技术研究中心;宝鸡石油机械有限责任公司研究院;中国石化石油工程地球物理有限公司华北分公司;
【基金】：工业和信息化部海洋工程装备科研项目(联装[2014]504号) 中国博士后科学基金项目(2016M592269) 山东省自然科学基金(ZR2015EL049) 青岛市博士后项目(2015253)资助
【分类号】：TE951

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