期刊信息
- 刊名： 河北师范大学学报（自然科学版）Journal of Hebei Normal University (Natural Science)
- 主办： 河北师范大学
- ISSN： 1000-5854
- CN： 13-1061/N
- 中国科技核心期刊
- 中国期刊方阵入选期刊
- 中国高校优秀科技期刊
- 华北优秀期刊
- 河北省优秀科技期刊
砂岩孔隙中液体吸附机理的NMR弛豫特性研究
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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 -
DOI：
The Study of NMR Relaxation Characteristic of Liquid Absorbable Mechanism in Porous Sandstone
摘要/Abstract
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
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.