砂岩孔隙中液体吸附机理的NMR弛豫特性研究  

The Study of NMR Relaxation Characteristic of Liquid Absorbable Mechanism in Porous Sandstone

作　　者：王立锦[1] 申同恩 魏纪鹏[3] 

机构地区：[1]河北师范大学物理系,河北石家庄050091 [2]邯郸职工中专学校,河北邯郸0560013 [3]河北工业大学物理实验中心,天津300130

出　　处：《河北师范大学学报（自然科学版）》1999年第3期347-350,共4页Journal of Hebei Normal University：Natural Science

摘　　要：研究储油岩芯对液体的吸附机理，用同一砂岩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 ３ 组样品，做了 Ｎ Ｍ Ｒ 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．In order to study the absorption mechanism of liquids in oil reservior core,several samples were prepared using the same rock core.①Different quantity of kerosene adsorbed.②Different quantity of water absorbed.③Some quantity of water was absorbed first and some quantity of kerosene was absorbed later.The NMR spin lattice relaxation times were determined for above three groups of samples.The conclusion is that the closer the water and oil molecules to the solid surface the shorter the relaxation time is.According to the conclusions on petroleum geology and NMR study results a NMR model of two phase(oil/water)system in porous sandstone was proposed.

关 键 词：核磁共振 弛豫时间 吸附 砂岩 NMR 储油 

分 类 号：TE311[石油与天然气工程—油气田开发工程]