Summary of hydraulic fracturing technology in shale gas development

Shale gas resource in the world is rich, but it hasn't been developed at so far because of extremely low permeability. Hydraulic fracturing technology, as one of the core technologies in shale gas development, is currently widely used in shale reservoirs reconstruction to increase production. This paper introduces hydraulic fracturing operation including fracturing design, fracture monitoring, fracturing fluids preparation and additives option, as well as fracturing technology including multi-stage fracturing, water fracturing, simultaneous fracturing, hydrojet fracturing, refracturing and so on in use and experiment in shale gas development in the USA. It analyzes the applicability of various fracturing techniques on the base of shale gas development case in foreign country and domestic fracturing technology.This paper holds that water fracturing is suited for China shale gas development at this stage,and water multistage fracturing could be used in thick shale reservoirs. Simultaneous fracturing is necessary of the large-scale shale gas development.