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%.
出处
《钻井液与完井液》
CAS
北大核心
2001年第2期23-26,共4页
Drilling Fluid & Completion Fluid
关键词
煤层气
气井
压裂液
压裂液添加剂
抗温性能
评价
coal bed methane, fracturing fluid, fracturing fluid additive, property evaluation
