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文33块沙二下油藏为复杂断块油藏,已进入开发后期,因构造复杂、注水开发历史较长、油水关系复杂、认识挖潜难度大,产量递减加快。通过分析制约油田开发效果的因素,明确问题与潜力,制定针对性的稳产措施。平面上通过强化水下分流河道地层能量,挖潜差异相带剩余油;层间通过相控层段组合,优化注水层段,实施精细注水,提高差层水驱动用程度;层内通过韵律段细分,优化射孔井段,改善主力储层开发效果。通过精细调整治理,区块实现稳产。
Because of complex structure, long history of water injection development and complex oil-water relations, it is very difficult to realize the potential of tapping potential and the output decreases exponentially. By analyzing the factors restricting the development effect of oilfields, the problems and potentials are clearly identified and targeted and stable production measures are formulated. In the plane, by strengthening the energy of submarine distributary channel, tapping the potential difference, the remaining oil is tapped. By combining the phase control layers, the waterflooding interval is optimized, and fine water injection is carried out to improve the driving ability of the differential water. Points, optimize perforation wells, improve the main reservoir development effect. Through the fine adjustment of governance, the block has achieved stable production.