为研究储油岩芯对液体的吸附机理，我们特地用同一岩芯制成以下几种样品：（１）吸附不同量的煤油；（２）吸附不同量的水；（３）先吸附一定量的水再吸附一定量的煤油．对以上三组样品，做了ＮＭＲ自旋—晶格弛豫时间测定；考查了岩芯样品中各弛豫成分量与液体吸附量的变化规律；得出了岩芯内水和煤油受束缚越紧其弛豫时间越短的结论．并依据大量石油地质学的结论建立了砂岩孔隙中油水二相系统的核磁共振模型． In order to study the adsorption mechanism of oil core on liquid, we specially made the following samples from the same core: (1) Adsorption of different amounts of kerosene; (2) Adsorption of different amounts of water; (3) The water then adsorbs a certain amount of kerosene. NMR spin-lattice relaxation time was measured for the above three groups of samples; the variation regularity of each relaxation component and liquid adsorption amount in the core sample was investigated; and the relationship between the core water and kerosene was restrained Tight relaxation time shorter conclusion. Based on the conclusion of a large number of petroleum geology, a nuclear magnetic resonance model of oil-water two-phase system in sandstone pores was established.