油田修井起下杆管清洁生产技术现状及分析

The Status and Analysis of Cleaning Technology for Pulling and Running Tubing and Sucker Rod in Oil Field Workove

文章从现有杆管清洁设备的基本结构、工作原理、应用效果入手,分析了井下、井口、井场、车间4个环节15种杆管清洁生产技术的优缺点和适应性,同时引入技术成熟完备性指标,对每种杆管清洁生产技术作了定量评价,认为在施工中应综合考虑地层、井史、油田所处环境敏感性等影响因素,将其集成或组合使用,形成适合于不同类型油井的杆管清洁模式。建议继续加强井下泄油、油管内壁清洗、内防喷、井口防喷防溅等关键设备研发与完善,提高清洁生产技术的适应性、可靠性,以降低劳动强度,提高工作效率。

This study analyzed the advantage/disadvantage and suitability of 4 process stages and 15 types of rod/pipe clean production technology based on the structure,mechanism and application effect of rod/pipe cleaning equipment.Besides,the indicators of technology maturity and completeness were introduced to quantitatively evaluate the rod/pipe clean production technologies.As a conclusion,there should be several types of the rod/pipe cleaning methods depending on the strata structure,the well development history and the oilfield`s environmental sensitivity.Furthermore,we suggested to continue to strengthen the research and development and improvement of key equipment such as well drainage,oil pipe inner wall cleaning,internal blowout preventer and wellhead blowout preventer and splash preventer,so as to improve the adaptability and reliability of cleaner production technology,so as to reduce labor intensity and improve work efficiency.