摘要
根据储层的特点和压裂改造的需要,延长油田开展了CO2增能压裂工艺技术研究,引进开发了新型CO2泡沫压裂液,优化了CO2增能压裂方案设计及现场施工工艺,形成了适合延长油田的CO2增能压裂工艺技术。经过现场应用,CO2增能压裂提高了返排率,降低了地层污染,使增产时间得到增加,提高了投入产出比,具有很好的经济效益,取得了良好的压裂效果。
According to characteristics of the reservoir and demand of fracturing,CO2 add-energy-fracture technology was studied in Yanchang oilfield company,new CO2 foam fracture fluid was developed,CO2 fracturing design and site construction craft were optimized,suitable CO2 add-energy-fracture technology for Yanchang oilfield was put forward.Field application results show that the CO2add-energy-fracture technology can improve flowback rate and reduce the formation contaminant,prolong stable production period and improve the input-output ratio,so it has very good economic benefit.
出处
《辽宁化工》
CAS
2012年第10期1052-1053,共2页
Liaoning Chemical Industry
