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水力压裂是低渗气层改造的主要措施，是否有效将是开发的关键。国内外进行的大量低渗气层的压裂施工，其效果很难同低渗油层的压效相比，个别的气层经过大型水力压裂，产气量反而下降，并伴随有吐砂、压裂液水化不彻底、返排困难等现象。文章在综合国内外现场、室内水力压裂试验情况的基础上，分析了影响压裂效果的主要因素，包括压裂液的滤失、地层及天然裂缝的伤害、支撑剂的破碎及返回井筒、压裂液的配伍性和返排以及气井管理中的一些问题，提出了水力压裂裂缝难以沟通较多的天然裂缝，并可能使天然裂缝受到伤害是影响压效的重要原因，为了有效地、无伤害地沟通较多的天然裂缝，可在低渗气层中进行高能气体压裂与水力压裂相结合的综合压裂改造。
Hydraulic fracturing is the main measure for the transformation of low permeability gas layers. Whether it is effective or not will be the key to development. At home and abroad, a large number of low permeability gas fracturing construction, the effect is difficult with the low permeability reservoir pressure compared to individual gas layer after a large hydraulic fracturing, gas production but decreased, and accompanied by sand, pressure Fissile hydration is not complete, back row difficulties and other phenomena. The article analyzes the main factors affecting the fracturing effect on the basis of the domestic and international field and indoor hydraulic fracturing tests, including the filtration of fracturing fluid, the damage of strata and natural fractures, the fracturing of proppant and the return wellbore, Fracturing fluid compatibility and back flow and some problems in gas well management, it is proposed that hydraulic fracturing is difficult to communicate with more natural fractures and may cause natural fractures to be harmed, which is the important reason that affects the compressing effect. In order to effectively, Communicate more natural fractures harmlessly, and can carry out comprehensive fracturing reformation combined with high-energy gas fracturing and hydraulic fracturing in the low permeability gas layer.