煤层气井用压裂液研究及应用  

Study and application of fracturing fluid for gas well in coal-bed formation

作　　者：梁利 丛连铸 卢拥军 刘萍 

机构地区：[1]石油勘探开发研究院分院压裂酸化中心

出　　处：《钻井液与完井液》2001年第2期23-26,共4页Drilling Fluid & Completion Fluid

摘　　要：根据煤岩储层的特点,介绍了煤层压裂液添加剂的优选和压裂液的常规分析方法,并推荐了两种压裂液,即活性水压裂液和冻胶压裂液。现场应用表明,活性水压裂液对煤层污染较小,适合于较低温度(小于30℃)及压裂工艺所要求裂缝较短的情况;冻胶压裂液具有一定的耐温耐剪切性,较好的流变性、滤失性及破胶性等;这两种压裂液加砂量均达到了设计要求,满足了工艺需要,施工成功事达100％,压裂后提高了产气量和产液量。The optimization of fracturing fluid additives and conventional evaluation arc introduced and two kinds of fracturing fluids are recommended based on coal-bed formation characteristic. Application shows that activated water fracturing fluid exhibit little damage to coal-bed formation with low temperature (less than 30 CO2 and short fissure. Gel fracturing fluid possesses temperature stability, shearing resistance, good rheological property and good gel-breaking capacity with less filtrate. Both fracturing fluids meet the technology requirements ancl the success rate reaches 100%.

关 键 词：煤层气 气井 压裂液 压裂液添加剂 抗温性能 评价 

分 类 号：TE377[石油与天然气工程—油气田开发工程] TE39