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本文给出了在地层条件(15.0MPa、75℃)下使用地层流体测定油水相对渗透率的实验方法,并与下列三种方法做了对比:(1)在常压50℃下,用洗净岩心,脱气原油;(2)在常温常压下用洗净岩心、精制油;(3)在常温常压下用洗净又恢复润湿性的岩心、精制油。比较结果表明,在常压下用洗净岩心,脱气原油和在常温常压下用恢复润湿性的岩心、精制油的测量结果与在地层条件下使用洗净岩心、含气原油测量结果基本一致,在常温常压下用洗净岩心、精制油测量的油水相对渗透率与前三者差别较大。
In this paper, experimental methods for determining the relative permeability of oil and water using formation fluid under formation conditions (15.0MPa, 75 ℃) are given and compared with the following three methods: (1) Core, degassing crude oil; (2) under normal temperature and pressure with a clean core, refined oil; (3) under normal temperature and pressure with the restoration of wettability of the core, refined oil. The comparison results show that the measurement results of the refined oil under the normal pressure using the washed core, the de-oiled crude oil and the core for restoring wettability at normal temperature and pressure, Basically the same, at room temperature and pressure to clean the core, refined oil measured relative permeability of oil and water and the first three larger differences.