辽宁石油化工大学学报2023，Vol.43Issue(6)：17-21,5.DOI:10.12422/j.issn.1672-6952.2023.06.003
架桥封堵-热致固结高温堵漏体系研究
Study on High Temperature Plugging System of Bridge Sealing and Thermal Consolidation
摘要
Abstract
In order to improve the success rate of high temperature and complex formation structural oil wells,the preparative temperature sensitive self-consolidation resin is used to modify the surface of the aggregate material,and the thermally consolidated rigid plug material is obtained,then auxiliaries are chosen to build a novel bridge sealing and thermal consolidation plugging system that could resist temperature to 190℃.Infrared spectroscopy,thermal analysis,scanning electron microscopy were employed to study the molecular structure,microstructure and thermal stability of the resin,thermally consolidated rigid plug material and the plugging system,the suspension stability,consolidation rate,consolidation strength and permeability of the plugging system were also investigated.The results show that the constructed plugging system has the advantages of good suspension stability and wide solidification time window in bentonite slurry with mass fraction of 5％,and the compressive strength of the solidified body after curing at 90～190℃ are all over 6 MPa;at the same time,the water phase permeability of the solidified body cured at 190℃ is 6.32×103 μm2 under the driving pressure of 12 MPa,and the plugging rate is more than 98.00％.It is expected to meet the plugging requirements of high-temperature formation.关键词
堵漏材料/温敏性自固结树脂/热致固结材料/悬浮稳定性/抗压强度/渗透率Key words
Plugging material/Thermosensitive self-consolidation resin/Thermal consolidation material/Suspension stability/Compressive strength/Permeability分类
能源科技引用本文复制引用
杜昊,李丽华,马诚,杨超,王晨,张宏..架桥封堵-热致固结高温堵漏体系研究[J].辽宁石油化工大学学报,2023,43(6):17-21,5.基金项目
中国石化科技部项目(219032-3) （219032-3）
辽宁省"兴辽英才计划"项目(XLYC1902053) （XLYC1902053）
辽宁省教育厅科学研究经费项目(L2020005) （L2020005）
中国石油化工有限公司项目(421034). （421034）
