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轮南油田目前已进入中高含水采油期,为了配合油田的高效开发及挖潜工作,对轮南油田水淹层的测井响应进行了分析,找出了水淹层在电阻率、自然电位及核物理性质等方面的变化特征。在此基础上,充分利用岩心分析及生产动态资料,建立了评价轮南油田水淹层剩余油饱和度的计算模型,并利用该模型计算的剩余油饱和度结合含水率,对该油田水淹级别与标准进行了合理的划分,通过实际资料的分析与处理,计算结果与实际生产数据较为吻合,证明了该方法的有效性与实用性。
Lunnan Oilfield has entered the middle and high water cut oil recovery period. In order to cooperate with the efficient development and tapping work of the oilfield, the logging response of the flooded layer in Lunnan Oilfield was analyzed, and the resistivity, natural potential and nuclear Physical properties and other aspects of the changing characteristics. On this basis, taking full advantage of the core analysis and production dynamic data, a calculation model for evaluating the remaining oil saturation of the flooded layer in Lunnan Oilfield is set up. Based on the residual oil saturation calculated by this model and the water cut, Level and standard are reasonably divided. Through the analysis and processing of actual data, the calculation results are in good agreement with the actual production data, which proves the effectiveness and practicability of the method.