The Research Of Deep Water Flooding Application In The Block Of Xinglongtai Wa16

Now, the mining of liaohe oilfield has entered high water cut period, severe oil layer being water flooding, injected water inefficient or invalid loops, if continue to rely on water injection alone maintain production, production will be difficult to guarantee, be badly in need of transformation of the mode of development, improve the water injection development effect.The deep displacement technology is developed in recent years for injection Wells deep processing to improve the well group water flooding development effect of a new technique to improve oil recovery. 16 for hollow block reservoir heterogeneity is serious, low utilization rate of water injection and waterflooding effect has the characteristics of the variation, oil field to carry out the deep displacement test. The technology under the condition of specific parameters of adopting reasonable construction technology will inject purpose layer oil displacement agent, using chemicals react under the condition of reservoir formation blockage, so as to improve the injection profile in the longitudinal, effectively limited high permeable formation water, improve water injection pressure, start the new layer absorbing water, on the plane change the direction of subsequent injection water seepage, expanding swept volume, improve the efficiency of water flooding.In this paper, the block development present situation and the demand, systematically carried out geological research, collect the pressure, the water drive reserves control degree,the degree of water drive, the utilization efficiency of water injection related data, test of the displacement of deep reservoir engineering plan design, optimizing the system of oil displacement agent formula, and a field experiment was carried out.Results for effective plugging water channels, improve the injection profile, improve sweep volume injected water, and achieve a positive role of liaohe oilfield continuous production.