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针对吐哈低渗透油田高含水期水淹层测井识别难的现状,利用水驱油岩心实验分析资料,开展了低渗透储层水淹机理研究。认为利用对水淹程度和水淹方向的评价成果,结合注采动态生产资料开展综合解释是提高水淹层解释符合率的关键手段,同时引入重复式地层测试技术作为水淹层识别的辅助手段。有效解决了低压油层的识别难题,这套水淹层识别技术在温米油田二次开发中取得了较好的应用效果。
Aiming at the status quo of logging identification of water-flooded layer in high water-cut stage in Turpan-Hami oilfield, the mechanism of waterflooding in low-permeability reservoirs is studied by using experimental data of water-flooding core. It is considered that using the evaluation results of flooding extent and flooding direction combined with the dynamic production data of injection and production to develop a comprehensive interpretation is the key means to improve the coincidence rate of water flooded layer interpretation. At the same time, the repeated strata test technique is introduced as an auxiliary means of water flooded layer identification . It effectively solves the problem of low pressure reservoir identification. The water flooded layer recognition technology has achieved good results in the secondary development of the Wenmi Oilfield.