摘要
针对川东地区地质情况复杂、井深、压力高、产气量大、产层多等特点，分析了油层套管环空窜气的原因，并根据防气窜理论和现场实践经验，研究总结出了一套适合川东地区防止油层套管环空窜气的综合固井技术。其技术关键：一是研究筛选出质量稳定、性能优良的适合防气窜工艺的水泥外加剂配方；二是注水泥施工中提高顶替效率和压稳气层。
Considering the complex geological formation in East Sichuan area,and suchconditons as great well depth,high pressure,large gas prodution and multilayered reservoirs,the paper domenstrated the reasons causing gas channeling through production annular,andaccording to the gas channeling prevention theory and field practical exeprience,drew out aseries of technology suitable for this area. The key include:First to develop and select cementadditives with stable quality and perfect performance, which is suitable for gas channelingperevention technology;Second to increase the displacement effiency and control the reservoirduring cementing.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
1995年第4期49-53,共5页
Oil Drilling & Production Technology
关键词
气田
深井固井
固井质量
油层套管
窜气
Sichuan gas field high pressure deep well cementing cement channeling cementing quality cement additive displacing
