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水力压是低渗气层改造的主要措施，是否有效将地开放的关键。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，并伴随有叶砂、压裂液水不彻底、返困难等现象。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以及气管理中的一些问题，

DISCUSSION ON THE MAMURING TECHNOLOOY OF LOW PERMEABILITY SANDSTONE GAS BEARING FORMATION

Hydraulic fracturing is key to reform and develop low permeability gas bearing formation, which has been done a large quantity fracturing construction at home and abroad, but the effect is worse than this measure used in oil fields. Some gas formation production even was reduced after fracturing. and flowing with some harmful tendencies. such as sands was brought out. fracturing fluid can't be dissolved completely.etc. Based on internal and external fields reality, the main factors affected the stimulation results, which including liquid leakoff, formation and fissures damaged. proppant crushed and flowback into wellbore.fluid compatibility,fluid flowback and gas well management, are discussed in the poper. Hydraulic fracturing is difficult to link up more natural fissures, which is damaged is an important resason of effecting fracturing result. So, in order to link up fissures effecturally and unharmfully ,the high energy gas fracturing(HEGF) and hydraulic fracturing are combined to reform low permeability gas bearing formation synthetically.