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孤东油田经过多年的高速开发、强注强采 ,地下矛盾十分突出。为探索特高含水期改善油田开发效果的途径 ,在深化油藏开发特点认识的基础上 ,应用精细油藏描述技术、数值模拟技术 ,以及开发测井和油藏工程方法 ,进行了剩余油分布规律研究、合理地层压力水平研究、扩大水驱波及体积途径分析、注采结构状况分析研究等。在降压强排试验的基础上 ,调整注采结构 ,使油田地层压力得到控制 ,注采结构得到了优化 ,控制了含水上升速度 ,油田开发趋势明显好转 ,强化了油田稳产基础 ,走出了稠油疏松砂岩油藏高含水后期开发的新路子
Gudong oil field after years of high-speed development, strong note strong mining, underground conflicts are very prominent. In order to explore the ways to improve the oilfield development effect during the ultra-high water cut period, based on the understanding of the characteristics of reservoir development, the remaining oil distributions were described using fine reservoir description techniques, numerical simulation techniques, and well logging and reservoir engineering methods Law research, reasonable stratigraphic pressure level research, expanding water flooding and volume route analysis, injection and production structure status analysis and research. On the basis of buck-boost test, the injection-production structure was adjusted so that the formation pressure in the oilfield was controlled. The injection-production structure was optimized and the water-bearing rise speed was controlled. The trend of oilfield development was obviously improved, and the stable production foundation of the oilfield was strengthened. New Approach to Development of Oil - Loose Sandstone Reservoir in High Waterset Stage