川西低效砂岩气藏水力压裂难点及对策探讨  

DIFFICULTIES AND COUNTERMEASURES OF HYDRAULIC FRACTURING OF INEFFICIENT SANDSTONE GAS RESERVOIR IN WESTERN SICHUAN REGION

作　　者：李小刚[1] 何骁 杨兆中[3] 春兰 

机构地区：[1]西南石油大学石油工程学院 [2]西南油气田低效油气开发事业部 [3]西南石油大学研究生部

出　　处：《钻采工艺》2010年第6期49-51,60,共4页Drilling & Production Technology

基　　金：教育部"高等学校博士学科点专项科研基金"联合资助课题(编号:20095121110001)

摘　　要：川西地区的天然气资源大部分蕴藏在低效气藏中,此类气藏一般需要经过改造才能投产或增产。为此,概述川西低效气藏的储层特点,分析气藏客观条件导致的水力压裂难点,重点介绍了川西低效气藏压裂在工程材料、压裂设计、施工工艺取得的新进展,并从基础理论、压裂层位选择、清洁压裂液和压裂工艺等4个方面探讨提高川西低效气藏压裂成功率和有效率的策略。A large proportion of natural gas resources in the western Sichuan region are inefficient gas reservoirs.For such gas reservoirs,stimulation technologies are generally required to put into or increase reservoirs’ production.An overview,which is about these reservoirs’ characteristics,is made.Fracturing difficulties caused by objective gas reservoir conditions were analyzed.It is focused on the new progress of engineering materials,fracturing design and treatment techniques in western Sichuan inefficient reservoirs fracturing.Moreover,the countermeasures to increase the success rate and efficiency rate of hydraulic fracturing in above reservoirs were discussed from four aspects,which include foundation theory,formation choice,clean fracturing fluid and treatment techniques.

关 键 词：川西 低效气藏 水力压裂 难点 对策 

分 类 号：TE357[石油与天然气工程—油气田开发工程]