连续油管技术在井下作业中的应用现状及思考

Application situation and thinking about coiled tubing techniques in downhole operation

王海涛 李相方

WANG Haitao LI Xiangfang

中国石油大学石油工程教育部重点实验室，北京　102249

Key Laboratory for Petroleum Engineering of the Ministry of Education, China University of Petroleum, Beijing 102249, China

连续油管技术在各种井下作业中的应用日趋成熟，而国内对于该项技术的应用仅局限在一些相对简单的井下作业，并没有充分发挥其优势。在综合分析及研究连续油管技术发展动态的基础上，全面总结了国外连续油管井下作业技术的应用现状及发展趋势，对比了国内目前连续油管设备使用情况和技术服务水平，提出了影响国内连续油管技术发展的各种不利因素、现有发展条件及如何确保连续油管作业成功率的关键因素。为进一步完善国内连续油管井下作业的应用技术水平和促进其相关工艺的发展起到了一定的借鉴和推动作用。

Coiled tubing（ CT） technology is becoming mature in various downhole operations currently. However, domesticapplications of CT limits in relatively simple downhole operations, and its advantages have not fully exerted. So on the basis ofcomprehensive analysis of CT techniques development, this paper makes an overall summary on CT techniques development in foreigndownhole operations. And then it makes a comparison study of domestic use and technical services. Finally, the authors propose variousunfavorable factors of domestic CT technology development, current opportunities and strategies for successful coiled tubing operations.This research is beneficial to improve domestic downhole applications level, promote the development of related CT technology.