According to coal-bed formation characteristics of low porosity and low permeability to choose optimum fracturing fluid formula, we have chosen HEC fracturing fluid.

• 结合煤层孔隙度小、渗透性差等物性特征，对压裂液配方进行优化，筛选出适合煤层物性的HEC压裂液，并对其性能进行了评价。