盘古梁侏罗系油藏提高水驱采收率技术研究

针对盘古梁侏罗系油藏注水上存在的平面水驱不均和剖面吸水状况变差的问题,分析影响油藏注水水驱采收率的沉积韵律、重力作用、储层非均质性、边底水发育、压裂改造等控制因素,研究出精细注采调整、完善注采井网、"三小一低"措施引效、开展周期注水等均衡平面水驱的技术手段,以及改善剖面水驱的化堵调驱、补孔调剖、暂堵酸化和选择性增注等技术手段,从而提高油藏注水水驱采收率,有效减缓含水上升、降低油田递减,确保盘古梁侏罗系油藏稳定高效开发。

Research of Pangu Liang Jurassic reservoir water flooding enhance oil recovery technology

In this paper, pangu Liang Jurassic reservoir water exist on the plane and the profile of water flooding the uneven state of deterioration of water problem, analyze the impact of reservoir oil recovery injection water flooding deposition rhythm, gravity, reservoir heterogeneity , bottom and edge water development, such as controlling factors of fracturing, injection and production to work out fine adjust and improve the injection and production wells Nets, "three small one low" primer efficiency measures, such as water injection cycle to carry out a balanced plane of the technical means of water flooding and to improve the profile of water flooding blocking the transfer of drive, fill hole profile, temporary blocking acidification and selective technical means such as by injection, thus enhance reservoir recovery injection water flooding, effectively slowing aquifer rise, lower oil field decline, to ensure that the beam Jurassic pangu Jurassic reservoir stable and efficient development.