川西深层须家河组气藏改造难点分析及技术对策

随着川西深层须家河组致密砂岩气藏勘探开发的不断深入，所遇到的难题也逐渐显现，诸如破裂压裂异常高、裂缝发育、滤失大、加砂压裂易砂堵等，严重制约了深层气藏勘探开发的进度和效果。结合近年来须家河组储层改造实践，从工程和工艺的角度总结分析了储层改造难的原因，提出了有针对性的技术对策。结合现场应用的实例，对各项技术在现场的应用进行了效果分析，为须家河组储层的开发提供参考。

Difficulty Analysis and Countermeasure of Reforming to Xujiahc Gas Reservoir of Deep Formation in Western Sichuan

With deepening of exploration and development of the dense sandstone gas reservoir for Xujiahe formation in Western Sichuan,the problems are shown gradually,such as abnormal high fracturing pressure,development of fracture,big filtration,easy blocking for sand fracturing,which seriously restricts the progress and effect of exploration and development for deep gas.Combined with Xujiahe formation storage reform practice,from aspects of the engineering and the process,reason of being difficult to reform of reservoir is summarized and analyzed,and specific countermeasures is put forward.Combining with the field application,applied effect of every tech is analyzed which provides reference for development of Xujiahe reservoir in the future.