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核磁共振弛豫方法测定砂岩有效渗透率
引用本文:王立锦,周尚文,周达明,郭振亚,丁大同.核磁共振弛豫方法测定砂岩有效渗透率[J].波谱学杂志,2003,20(1):57-61.
作者姓名:王立锦  周尚文  周达明  郭振亚  丁大同
作者单位:河北师范大学物理学院,河北石家庄 050016;南开大学物理学院,天津 030071
基金项目:河北师范大学青年基金资助项目
摘    要:在对储油岩芯液体吸附特性研究的基础上,提出了用核磁共振弛豫方法测定岩芯“有效渗透率”的方法,并对实际样品进行了测定分析,获得了较满意的结果. 此方法测定的有效渗透率较传统方法测定的渗透率更接近于实际的储油岩层的渗透率. 有效渗透率的值可以用来进行油藏注水开发效果分析,研究油层剩余油分布. 相信此方法将获得更广泛的应用.

关 键 词:储油岩芯    有效渗透率    有效孔隙度    自旋-晶格弛豫时间  
文章编号:1000-4556(2003)01-0057-05
收稿时间:2002-08-19
修稿时间:2002年8月19日

PERMEABILITY OF SANDSTONE MEASURED BY NMR RELAXATION METHOD
WANG Li jin,ZHOU Shang wen.PERMEABILITY OF SANDSTONE MEASURED BY NMR RELAXATION METHOD[J].Chinese Journal of Magnetic Resonance,2003,20(1):57-61.
Authors:WANG Li jin  ZHOU Shang wen
Institution:Department of Physics, Hebei Normal University, Shijiazhuang 050091, China; Department of Physics, Nankai University, Tianjin 300071, China
Abstract:Based on a previous study on the absorption mechanisms of liquids in oil reservoir core, a method for determining the effective permeability of sandstone was developed in this study, and the results obtained appeared relatively satisfactory. The effective permeability of sandstone determined by this method was closer to the real value than that obtained by the conventional method. The value of effective permeability derived can be used for evaluating the performance/cost ratio of using the water flooding method in an oil field, and for studying the distribution of surplus oil in an oil field. It is believed that this method will find many practical applications.
Keywords:NMR  oil storage core  effective permeability  effective porosity  spin  lattice relaxation time
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