升沉补偿装置是对浮式钻井平台和钻柱系统在海浪等自然载荷作用下做升沉运动时进行适当补偿的关键设备,在深海石油钻井开发过程中,该装置能在浮式平台遇到大风等恶劣环境作用时,有效减小上下振荡运动对钻井作业带来的一系列影响,保证井底钻压的稳定和钻井系统整体工作过程的高效进行。通过大量文献调研,分析了升沉补偿装置在中国的发展现状和应用情况,结合升沉补偿装置在中国深海石油钻井过程中的实际使用情况和研究现状,利用多浮体理论和钻井系统动力学特征提出对该装置进一步深入研究的新思路和技术路线图,对促进中国海洋石油装备自主研究和发展具有十分重要的意义。
Heave compensation system is the key equipment of the floating drilling platforms and the drill string which has the appropriate compensation for doing heave motion at times of waves and other natural loading,in the process of developing deep-sea oil drilling. The device can effectively reduce a series of impact that oscillating up and down movement has on drilling, ensuring the stability and safety of the overall process of drilling system and the stability of the downhole drilling pressure. Through the extensive literature survey,analysis of the situation of the development and application of heave compensation system in our country was made. Combined with application and research status of the heave compensation device in our country,and by using the theory of multiple floating body and drilling dynamics characteristics,we put forward new ideas on further in-depth study and the technology roadmap of the device,to promote China′s offshore oil equipment independent research and development.