摘要
海洋深水钻井井下溢流及井喷的防控是急需解决的海洋油气开发重大难题,行之有效的措施是发现井下早期溢流并及时采取井筒压力控制措施,其关键在于溢流的监测。基于此,本文分析了深水钻井井控面临的主要困难,水深、低温环境、泥浆性能变化、窄安全密度窗口等导致井控难度增加。系统的对比分析了现有深水钻井溢流监测方法的特点,指明了深水钻井溢流监测技术逐渐向着能够更早、更准确、更智能发现溢流的方向发展。通过分析深水钻井的井控难点和溢流监测方法的适应性,设计了一套海洋深水钻井溢流综合监测技术核心体系,分析了该技术体系的工作原理,形成了以井眼随钻监测为核心、海水段监测和平台监测为辅助的系统方法,该方法可及时、准确、自动发现井下溢流,也可用于指导井筒压力控制作业和监控压井施工过程。本文为我国海洋深水钻井早期溢流监测技术的研究指明了方向,具有重要的现实意义。
The prevention and control of kick or blowout for offshore deep-water drilling is a major issue fa-cing the offshore oil and gas development.The effective means is the kick early detection technology,and respond in a timely manner.The key lies in the monitoring of kick.Based on this,this article analyzed the main difficulties facing well control problem in deep-water drilling,due to factors such as water depth,low temperature environment,changes in mud performance,and narrow safety density window,which cause in-creased difficulty in well control.The characteristics of existing kick detection methods for deep-water drilling were contrasted and analyzed systematically,and indicated the development direction of being able to detect overflow earlier,more accurately,and intelligently of kick detection technology for deep-water drilling.By analyzing the well control difficulties of deepwater drilling and the adaptability of overflow monitoring methods,designed a core technology system of kick integrated detection for deep-water drill-ing,and analyzed the working principle of this system,the systemic method with borehole monitoring as the core,ocean floor and platform monitoring method as auxiliary have been formed.This method not only can be used in kick early detection,but also can be used in comprehensive monitoring during kick-killing and accurate control down-hole pressure.This paper have been pointed out the research direction of kick detection technology for offshore deep-water drilling,it has very important practical significance.
作者
丛军勇
李晓东
CONG Junyong;LI Xiaodong(China Oilfield Services Limited,Langfang 065000,China)
出处
《中国石油天然气研究》
2025年第1期1-9,共9页
Chinese Petroleum and Natural Gas Research
关键词
深水钻井
井控
溢流
气侵
压井
监测
Deep-water drilling
well control
kick
gas cut
kick-killing
survey
