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束缚水饱和度是测井资料解释中的重要参数,求取油水相对渗透率和区分油气水层的重要依据。对于不同的储层,影响束缚水饱和度的因素各不相同,求取束缚水饱和度的方法也不相同。本文通过对束缚水饱和度的影响因素的分析,认为泥质和孔隙度是该地区束缚水饱和度的主要影响因素,建立了束缚水与泥质和孔隙度的模型。通过对实际资料的处理,检验了模型的准确性,取得了较好效果。
The irreducible water saturation is an important parameter in the interpretation of log data, and an important basis for determining the relative permeability of oil and water and distinguishing oil-gas water layers. For different reservoirs, the factors affecting the irreducible water saturation are different, and the methods for determining the irreducible water saturation are also different. Based on the analysis of the influencing factors of irreducible water saturation, the paper argues that the shale and porosity are the main influencing factors of irreducible water saturation in this area, and the model of irreducible water with shale and porosity is established. Through the processing of the actual data, the accuracy of the model was tested and good results were achieved.