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对于低渗、致密气藏而言，水力压裂技术已不仅是增储上产的手段，更作为一种勘探评价及投产措施在气田开发中起到了举足轻重的作用。针对川西侏罗系气藏普遍存在的低孔渗、致密、强水敏等地质特征，在大量室内实验和大规模现场试验的基础上，研究形成了立体、整体压裂两套开发模式及五套独具特色的碎屑岩气藏水力压裂工艺技术，并在推广应用中取得了巨大的经济和社会效益。

Progress in Hydraulic Fracturing Techniques Used for the Clastic Rock Gas Reservoirs in West Sichuan

As regards the low permeability compact gas reservoirs,the hydrauli c fracturing technique is not only the means of increasing reserves and output b ut also an exploration evaluation and putting into production measure and it p lays an important role in gas field development.In light of the geological chara cteristics,as low permeability,compactness and strong water sensitivity,existing in the Jurassic gas reservoirs in West Sichuan commonly and on the basis of a g reat number of indoor experiments and large scale field tests,two sets of devel opment patterns,i.e.cubical fracturing and integral fracturing and five sets of exceptional hydraulic fracturing techniques used for clastic rock gas reservoirs were established through research and enormous economic returns and social effe cts have been achieved in popularization and application.