摘要
国内外油田历经长期开发,大量油田已进入特高含水期。此阶段地层含水率急剧攀升,油水比例失衡,剩余油呈高度分散状态,导致原油采收率大幅下降,开采难度显著增加。针对特高含水期油田的开发特点,系统探究精细注水调整、热采及化学驱、调剖调驱及信息化监测等核心技术措施。结合江汉油田实际,分析各项技术在改善地层非均质性、降低油水界面张力、精准油藏补能等方面的应用效果,为同类油田的高效开发提供理论依据和实践参考。
After long-term development,many domestic and international oilfields have entered the ultra-high water-cut stage.During this phase,formation water cut increases sharply,oil–water ratio becomes imbalanced,and remaining oil is highly dispersed,resulting in a significant decline in oil recovery and greater production challenges.This study systematically investigates key techniques applicable to ultra-high water-cut oilfields,including fine water injection adjustment,thermal recovery,chemical flooding,profile control and displacement optimization,as well as digital monitoring.Taking Jianghan Oilfield as a case study,the study analyzes the performance of these techniques in improving reservoir heterogeneity,reducing interfacial tension,and enhancing reservoir energy.The findings provide theoretical and practical guidance for efficient development of similar mature oilfields.
作者
刘顺
LIU Shun(Jianghan Oil Production Plant,Sinopec Jianghan Oilfield Company,Qianjiang,Hubei 433124,China)
出处
《江汉石油职工大学学报》
2025年第6期47-48,共2页
Journal of Jianghan Petroleum University of Staff and Workers
关键词
油田特高含水期
采收率技术
江汉油田
化学驱
ultra-high water-cut oilfield
enhanced oil recovery technology
Jianghan Oilfield
chemical flooding
