页岩气储层体积压裂改造体积影响因素分析

Analysis on Influencing Factors of Stimulated Reservoir Volume During Volume Fracturing Reconstruction of Shale Gas Reservoir

体积压裂技术的发展是页岩气储层成功开发的巨大推动力。在北美的页岩气藏的开发中体积压裂技术已经取得了显著的成果。其本质上属于水里压裂期间,增大自然形成的缝隙以及使硬度较小的岩石出现剪切滑移,得到自然与人力两种环境下纵横密布的裂缝网络结构,以此扩大处理体积,获得更多的原始产量与采收成果。在不同缝网参数角度,对页岩气储层体积压裂改造体积的影响因素进行分析。

The successful exploitation of shale gas reservoir is greatly driven by development of volume fracturing technology, which has received remarkable effect in the shale gas development in North America. It is essentially by broadening cracks created by natural force and causing shear displacement of the low-hardness rocks during hydro-fracturing, to create a crisscrossing fracture network structure combining both nature and manpower, expanding processing volume to gain more original yield and harvest results. In this paper, influencing factors of stimulated reservoir volume during volume fracturing reconstruction of shale gas reservoir were analyzed.