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姬塬油田L1长8油藏中部主要是注水开发,随着开发时间延长,开发矛盾逐渐暴露:水驱状况较差;地层压力保持水平较低,恢复缓慢;裂缝见水井逐年增多,注采矛盾突出;低产井所占比例较大等,导致油藏递减率加大,含水上升速度加快,严重制约了油藏水驱的高效开发。本文通过研究水驱开发的影响因素,开展相应的对策研究,为油藏高效开发提供强有力的技术支撑。
With the development time prolonging, the development contradictions are gradually exposed: the waterflooding condition is poor; the formation pressure is kept at a low level and the recovery is slow; and the fractures see the wells increasing year by year, the contradiction between injection and production And the ratio of low-yielding wells is relatively large, which leads to the decrease of reservoir rate and the increase of water-cut rate, which seriously hinders the efficient development of reservoir waterflooding. In this paper, by studying the influencing factors of waterflooding development and carrying out corresponding countermeasures, it provides strong technical support for efficient reservoir development.