Experimental Study of Oil based Fracturing Fluid Used in Qigequan Oilfield of Qinghai

In consideration of some characters of smaller buried depth, low permeability, low temperature in formation, smaller pressure coefficient and strong water sensitivity in Qigequan oilfield reservoirs, an experimental study is performed by means of an oil based fracturing fluid and a suitable fracturing fluid system is proposed The fluid system is used in fracturing test on 3 wells in Qigequan oilfield, which shows that the effectiveness of fracturing stimulation is raised substantially and the effect of stimulation is excellent