Application of a new type of low polymer fracturing luqid in Niujuanhu oilfield

The J2x oill reservoir in Niujuanhu oil field has the characteristics of low porosity, extra low percolation ,low temperature and low pressure, which leads to very low natural production, so most of the oil wells can obtain high production by fracturing stimulation .The main difficulties of fracturing stimulation is that fracturing fluid fails to break glue abruptly, the formation is short of power of fracturing fluid for flowback and requires high fracture conductivity as well as controls fracture height properly. Deal with key problems that have been investigated to form the system of low polymer fracturing fluid, the advantages of which have temperature resistance and shear resistance and low residue content and low formation damage and low friction resistance and low cost.The applications of which show that the technologies are able to greatly enhance oil production in Niuquanhu oil field and provide economic efficient technical measures for the similar oil reservoir in low permeability formation.