在线阅读 --自然科学版 1999年3期《砂岩孔隙中液体吸附机理的NMR弛豫特性研究》
砂岩孔隙中液体吸附机理的NMR弛豫特性研究--[在线阅读]
王立锦1, 申同恩2, 魏纪鹏3
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 056001;
3. 河北工业大学 物理实验中心, 天津 300130
起止页码: 347--350页
DOI:
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。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

The Study of NMR Relaxation Characteristic of Liquid Absorbable Mechanism in Porous Sandstone
WANG Li-jin1, SHEN Tong-en2, WEI Ji-peng3
1. Department of Physics, Hebei Normal University, Shijiazhuang 050091, China;
2. Handan Employeer's Technical Secondary School Handan 056001, China;
3. Central of Physics Experiment, Hebei Industry University, Tianjin 300130, China
Abstract:
In order to study the absorption mechanism of liquidsin oil reservior core, several samples were prepared using the same rock core. ① Different quantity of kerosene adsorbed.② Different quantity of water absorbed. ③ Some 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.

收稿日期: 1998-9-4
基金项目:

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