摘要
大规模加砂压裂是非常规油气资源开采的必要手段,也是导致井下管柱和工具发生冲蚀磨损失效的重要原因。针对这一问题,综合评述了国外学者基于不同材料研究提出的冲蚀理论以及主要研究结论,并总结了国内对于基础冲蚀理论做出的衍生研究。结合实际工艺工况阐述了加砂压裂过程中管柱严重冲蚀的主要原因;针对大规模加砂压裂过程中易被冲蚀的管柱结构和压裂工具介绍了研究进展。指出了当前压裂管柱冲蚀的研究难点及未来的研究方向,对压裂管柱的冲蚀防护问题,保护井筒完整性和提高非常规油气资源的开发效果有重要的参考价值和工程意义。
Massive sand fracturing is a necessary means for the development of unconventional oil and gas resources,as well as an important cause for the failure of downhole pipe strings and tools due to erosion wear.Targeted at this problem,the erosion theories and main research conclusions proposed by foreign scholars based on different materials are reviewed comprehensively,and the derivative researches into basic erosion theories conducted in China are summarized.Combined with the actual technological conditions,the main causes of serious erosion of pipe string in the process of sand fracturing are expounded.With respect to the pipe string structures and fracturing tools that are likely to be eroded in the process of massive sand fracturing,the research progress is introduced.Current research difficulties and future research direction of fracturing string erosion are pointed out,which is of important reference value and engineering significance for protecting the fracturing string against erosion and the wellbore integrity,and improving the development effect of unconventional oil and gas resources.
作者
张思松
曾德智
潘玉婷
田刚
于会永
石善志
ZHANG Sisong;ZENG Dezhi;PAN Yuting;TIAN Gang;YU Huiyong;SHI Shanzhi(State Key Laboratory of Oil&Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu 610500,Sich-uan,China;Research Institute of Engineering Technology,PetroChina Xinjiang Oilfield Company,Karamay 834000,Xinjiang,China)
出处
《新疆石油天然气》
CAS
2022年第3期65-72,共8页
Xinjiang Oil & Gas
基金
四川省科技计划项目“页岩气水平井大规模加砂压裂井筒固液两相流动模拟及冲蚀规律研究”(21JCQN0066)。
关键词
加砂压裂
冲蚀
压裂管柱
压裂工艺
冲蚀理论
冲蚀环境
sand fracturing
erosion
fracturing string
fracturing technology
erosion theory
erosion environment
