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本文根据实验资料,从主要造岩(砂岩)矿物的晶体结构,来分析矿物润湿性出现差异的原因,又结合油藏形成过程,分析砂岩油藏的优先润湿相、砂岩油层的润湿性,提出油层孔隙中油水分布的力学模式;并应用提出的三态模式、三类孔隙对影响油层驱油效率的一些有关因素进行了讨论;在此基础上,探讨了今后砂岩油田提高采收率的方向问题。
Based on the experimental data, the reasons for the difference in mineral wettability are analyzed based on the crystal structure of the main rocks (sandstone) minerals. The wetting facies of sandstone reservoirs and the wetting of sandstone reservoirs are analyzed in combination with the reservoir formation process The paper puts forward the mechanical model of oil-water distribution in the pores of the reservoir; and with the three-state model proposed, the three types of pores discuss some factors that affect the oil displacement efficiency of the reservoir; on this basis, Rate the direction of the problem.