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针对海上强底水油田的开发现状与开发特征,以曹妃甸馆陶组油田为例,利用油水相对渗透率随含水率的变化曲线和无因次采油、采液指数随含水率的变化曲线,结合油藏数值模拟方法,确定曹妃甸馆陶组水平井开发合理的提液方案。通过分析得到,生产年限较短时,越早提液、提液幅度越大,油田开发效果越好;生产年限较长时,存在最优提液时机和提液幅度。研究结果对强底水油藏的高效开发提供了理论依据,为油田提高采收率,调整单井工作制度提供了可靠的依据。
Aiming at the development status and developing characteristics of offshore strong bottom water field, taking the Guantao oilfield in Caofeidian as an example, the relationship between the relative permeability of oil and water with the change of water cut and the dimensionless oil recovery, Reservoir numerical simulation method to determine the Caofeidian Guantao horizontal wells developed reasonable solution. The analysis shows that the shorter the production period, the sooner the liquid is extracted, the larger the liquid extraction rate is and the better the oilfield development effect is. When the production period is longer, the optimal timing and liquid extraction rate exist. The research results provide a theoretical basis for the efficient development of strong bottom water reservoirs and provide a reliable basis for improving oil recovery and adjusting single-well working system.