胜利油田三次采油化学驱项目后评价研究

Study on Post-Evaluation of Chemical Oil-driven Tertiary Recovery in Shengli Oilfield

石油是国民经济赖以生存和发展的基础,而在当今社会对石油的需求量增加以及老油田产量逐渐递减的形势下,三次采油化学驱技术已经成为胜利油田老油田持续稳产的主导技术。针对三次采油化学驱项目的主要特点,构建了胜利油田三次采油化学驱项目后评价指标体系,运用熵权法确定了各项指标的权重,并基于模糊综合评价模型对胜利油田三次采油化学驱项目中具有代表性的孤东油田七区西南Ng54-61层二元复合驱油先导试验项目进行实例分析并得出综合评价结果。该研究为今后胜利油田三次采油项目的后评价工作提供了参考依据。

Petroleum is the foundation of the survival and development of national economy.Under the situation that the demand of oil is increas-ing while the production of oilfield is decreasing, the chemical oil-driven tertiary recovery has become the dominant technology for the stable pro-duction in Shengli oilfield.According to the characteristics of the Chemical oil-driven tertiary recovery project in Shengli oilfield,this paper estab-lished the later-evaluation index System.In the evaluation process,the entropy weight method was used to determine the weight of each index and thefuzzy comprehensive evaluation, method was adopted to make empirical analysis of pilot test project of Surfactant/polymer （SP） flooding in. the southwest Ng54 - 61 layer of the 7 district in Gudong oilfield which is a representative project in Shengli oilfield and get the result of the evaluation. This research will provide a reference for the Post-evaluation, of the tertiary recovery in. Shengli oilfield.