Study on application of microsphere profile control and displacement technology in deep plugging reservoir
With the prolongation of water flooding development time,water flooding condi-tion becomes worse,water cut increases year by year,water flooding efficiency decreases,which seriously affects oil recovery.It is generally believed that water injection outburst will occur in the process of water flooding,which is caused by the change of pore phenology and the opening of micro-cracks.The influence of deep plugging on water flooding is often ig-nored.In view of the lack of understanding of the deep plugging,the lack of effective mea-sures in the treatment process,affecting the development of such reservoirs.Based on the analysis of deep plugging characteristics of typical low permeability waterflooding reservoir,field test of microsphere profile control and flooding is carried out.In view of the effect,the microsphere oil displacement control technology has a good adaptability with this kind of deep plugging reservoir,through the microsphere water swelling to block the deep water drive channel,the surfactant dredges the blocked channel,effectively improves the water drive,good effect of water control and oil stabilization has been achieved,which provides a scientific basis for the production stabilization of the same type of reservoirs.
water injection developmentdeep pluggingmicrosphere flooding
万方数据
维普
