论文部分内容阅读
根据Ge等人的实验结果,归纳出气相中无离子水在强亲水性矿物表面的水膜分离压等温线,代入推广的Young-Laplace公式,得到实际油气藏中水膜厚度上限的计算公式。计算结果表明,油气藏中水膜的厚度比根据束缚水饱和度和岩石的比表面积计算的结果小得多,比所在毛管半径也小得多,从而对以往的计算方法以及关于水膜厚度会成为储集层中有效孔隙半径下限值的推论提出了置疑。提出了研究油气藏中水膜厚度的方法。表1参14(邹冬平摘)
According to the experimental results of Ge et al., The water-film separation pressure isotherms of deionized water in the gas phase on strongly hydrophilic minerals are summarized and popularized by the Young-Laplace formula to obtain the formula of the upper limit of the water-film thickness in the reservoir . The calculated results show that the thickness of the water film in the reservoir is much smaller than the result of the irreducible water saturation and the specific surface area of the rock and is much smaller than the capillary radius of the reservoir. Therefore, the previous calculation method and the calculation of the water film thickness The hypothesis of being the lower limit of the effective pore radius in the reservoir has been questioned. A method to study the water film thickness in oil and gas reservoirs is proposed. Table 1 reference 14 (Zou Dongping pick)