摘要
页岩气藏孔隙度低,地层压力低,经过大规模体积压裂后,返排率低一直是试油工艺的一个难题。压裂后,流体在产层中停留时间过长,会损害产层,很难达到预期的压裂效果。如何高效快速排液对页岩气藏的开发具有十分重要的意义,文章探讨了目前常用的几种页岩气体积压裂后快速排液方法,为页岩气储层改造后快速排液提供了科学依据。
For the porosity and formation pressure of shale gas reservoir are low,the liquid flowback rate after volume fracturing is low,which has always been a difficult problem for well testing.After fracturing,if the fluid stays in the pay zone for a long time,the pay zone will be damaged.Therefore,quick liquid flowing back is quite significant to the development of shale gas reservoir.In this paper,several methods of quick flowback after volume fracturing were discussed,it provided scientific basis for the quick flowback after shale gas reservoir reconstruction.
出处
《钻采工艺》
CAS
北大核心
2013年第6期60-62,5,共3页
Drilling & Production Technology
关键词
页岩气
体积压裂
快速排液
shale gas,volume fracturing,quick liquid flowing back
