摘要
五百梯气田是西南油气田分公司上世纪 90年代重点开发的低渗天然气田 ,其中 6口井采用胶凝酸、前置液交替注入压裂酸化施工工艺实施深部改造后 ,使气井的天然气产能提高了 90 .4 5× 10 4m3/d ,单井平均增产 8.76倍 ,施工效果十分显著。本文介绍了该气田使用胶凝酸、前置液交替注入施工6口井的储层情况及室内评价确定的胶凝酸配方体系 。
Wubaiti gas field is one of the most impotrtant low permeability gas fields in 1990's for Petrochina Southwest Oil and Gas Field Company.In order to achieve deep acid fracturing reconstruction,6 wells are acid fractured by alternation of gelling acid and preflush injection.The efficiency of acid fracturing is evident,the increased yield of natural gas is 90.45×10 4m 3/d,average increased production times are 8.76.The article introduces the reservoir and the job implementation of 6 wells and analyzes the efficiency of acid fracturing via alternation of gelling acid and preflush injection.
出处
《石油与天然气化工》
CAS
CSCD
北大核心
2002年第3期140-143,共4页
Chemical engineering of oil & gas
关键词
作业效果
胶凝酸
五百梯气田
压裂酸化
应用
gelling acid,Wubaiti gas field,acid fracturing,application,efficiency
