页岩气藏大规模体积压裂后井筒快速排液方法优选  

QUICK FLOWING BACK METHODS OF WELLBORE LIQUID AFTER VOLUME FRACTURING OF SHALE GAS RESERVOIR

作　　者：廖刚[1] 聂福贵 舒梅[1] 徐茂荣[3] 宋军正[1] 潘登[1] 

机构地区：[1]川庆钻探工程有限公司钻采工程技术研究院油气井测试公司 [2]中石油川庆塔里木工程公司 [3]川庆钻探工程有限公司川东钻探公司

出　　处：《钻采工艺》2013年第6期60-62,5,共3页Drilling & Production Technology

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.

关 键 词：页岩气 体积压裂 快速排液 

分 类 号：TE357[石油与天然气工程—油气田开发工程]