低压气藏的开发实践和认识  

DEVELOPMENT PRACTICE AND RECOGNITION OF LOW PRESSURE GAS RESERVOIR

作　　者：胡春蕾[1] 

机构地区：[1]中原石油勘探局资料公司

出　　处：《钻采工艺》2004年第4期47-48,共2页Drilling & Production Technology

摘　　要：中原油田卫城气藏每个区块内部均被多条小断层切割 ,属低凝析气藏 ,露点压力为 10 97MPa。采用的气井增产工艺技术为加砂压裂、酸化解堵、超正压射孔、排液采气技术等。其中压裂解堵主要采用了前置液中加入液氮作为助排剂、使用粘度较高的优质胍胶压裂液、使用高硬度陶粒支撑剂、卡封保护套管等四项技术 ,取得了良好的增产效果。Weicheng gas reservoir of Jiangsu oilfield belongs to low condensate gas reservoir,its dew-point pressure is 10.97MPa.In the reservoir,stimulation treatments adopted are sand fracturing,acid broken down, overpressure perforating and discharge fluid gas recovery etc.technology.In which,using fracturing plug removal technology,including adding liquid nitrogen into preflush as cleanup additive and using high-quality guanidine gel fracturing fluid with high viscoity and haydite proppant with high hardness etc.technique,has obtained good stimulation effect in the low pressure gas reservoir.

关 键 词：低压气藏 压裂工艺 酸化工艺 射孔工艺 支撑剂 断块气藏 气藏开发 

分 类 号：TE377[石油与天然气工程—油气田开发工程]