特种油气藏2012，Vol.19Issue(2)：123-125,3.
深层气藏压裂改造降低施工摩阻技术
摘要
Abstract
The gas reservoirs in western Sichuan belong to deep to ultra -deep and tight to ultra -tight sandstone reservoirs, featured by high fracture pressure and high extension pressure. Analysis shows that reducing friction resistance will be an effective way to reduce operation pressure. The technology of reducing friction resistance for fracturing deep gas reservoirs has been formed, involving rational pipestring assembly, injection optimization, fiber mixture in frac sand, delayed crosslinking fracturing fluid and prop-pant slug; and the technology has been applied to Well LSI. Integrated techniques of multi - stage slugs, small grain size ceramis-ite, low proppant concentration, low damage fracturing fluid and fiber mixture in frac sand are used to reduce operation friction resistance , as a result, near wellbore friction resistance has been reduced by 9. 47 Mpa, bending friction resistance by 7. 61 Mpa, and on-the -way friction resistance by 4 ~5 Mpa, thus successfully accomplished 80m3 sand fracturing treatment, with post frac gas production of 1. 098 0 x 104mVd and water production 10. 7 mVd.关键词
深层气藏/压裂/施工摩阻/施工参数Key words
deep gas reservoir/ fracturing/ friction resistance/ operation parameter分类
能源科技引用本文复制引用
宋燕高,赵素惠,王兴文,李永明,马飞..深层气藏压裂改造降低施工摩阻技术[J].特种油气藏,2012,19(2):123-125,3.基金项目
国家重大专项"大型油气田及煤层气开发"子课题"四川盆地低渗气藏储层改造工艺技术研究"(2008ZX05002-004-004) （2008ZX05002-004-004）
