不同储集层特征对注水开发效果的影响

The effect of different reservoir characteristics on the efficiency of waterflooding development

通过对马王庙油田马36井区与王场油田潜四段沉积环境、岩性、孔隙结构、注水开发效果对比,分析认为两区沉积微相、岩性、物性及孔隙结构均存在一定差异。因此,马36井区注水开发效果与王场潜四段相比,在水线推进速度、含水上升规律、稳产时间、水驱采收率等方面存在较大差异。说明不同的储集层特征对注水开发效果影响较大,应对不同的储集层特征制定不同的开发方案。

By comparison of Ma3 6 well in Mawangmiao oil field and Eq4 in Wangchang oil field in terms of the sedi-mentary environment,lithology,pore structure and the efficiency of waterflooding development,it is believed that there are differences between the two areas in respect of sedimentary microfacies,lithology,physical property,and pore structure.Hence,the water-front advance velocity,the patterns of water content rising,the stable production periods,and the waterflooding recovery efficiencies are different from each other by comparing the efficiency of water-flooding development in Ma36 well and Wangchang Eq4.It indicates that different reservoir characteristics have great effect on the efficiency of waterflooding development,and different exploitation scheme shall be adopted in accordance with different reservoir characteristics.