石油与天然气地质 ›› 2002, Vol. 23 ›› Issue (4): 364-367.doi: 10.11743/ogg20020413

• 油气空间 • 上一篇    下一篇

阿尔奇公式与储层孔隙结构的关系

李秋实1, 周荣安2, 张金功3, 吴汉宁3, 李学森4   

  1. 1. 西北大学地质系, 陕西西安, 710069, 长庆油田公司勘探开发研究院, 陕西西安, 710021, 石油大学博士后流动后, 北京, 102200;
    2. 长庆油田公司勘探开发研究院, 陕西西安, 710021;
    3. 西北大学地质系, 陕西西安, 710069;
    4. 胜利油田物探研究院博士后科研工作站, 山东东营, 257022
  • 收稿日期:2002-10-17 出版日期:2002-12-25 发布日期:2012-01-16

RELATIONS BETWEEN ARCHIE'S FORMULA AND RESERVOIR PORE STRUCTURE

Li Qiushi1, Zhou Rongan2, Zhang Jingong3, Wu Hannin3, Li Xuesen4   

  1. 1. Department of Geology, Northwest University, Postdoctor Station of Changqing Petroleum Exploration Bureau, Xi'an, Shannxi, Postdoctor Mobile Station of Petroleum University(Beijing);
    2. Exploitation Institute of Changqing Oil company Xi'an, Shannxi;
    3. Department of Geology, Northwest University, Xi'an, Shannxi
  • Received:2002-10-17 Online:2002-12-25 Published:2012-01-16

PDF (PC)

747

被引次数

102

摘要：

通过对陕141井区上古生界山2储层的毛管压力曲线和岩电实验资料的研究,认为阿尔奇公式中的电阻率因素F不但与储层孔隙度、孔隙的曲折度有关,而且与储层的孔喉比有关,当孔隙度一定时,孔喉比越小,F值越低;地层电阻率指数n值的大小主要受储层孔喉比的影响,当储层为孔喉比等于 1的管状孔时,n等于1,值最小。孔喉比越大,n值越大。其原理是当孔隙饱含油时,不仅导电体截面减小,而且导电体长度增加。

关键词: 石英, 孔隙结构, 成岩作用, 岩电试验, 压汞曲线, 电阻率指数

Abstract:

It is discovered by the experimental study on Shan-2 Paleozoic reservoir of Shan-141 well area that the resistivity factor F in Archie's Formula is not only related with the porosity and tortuousity of the pore but also related with the throat of the pore as well. When the throat rate =1, the minimum of n is 1, when the throat becomes larger, n becomes larger accordingly. It is concluded that the smaller the ratio of the pore throat,the lower the Value F is. The size of Value n of the reservoir resistivity index is chiefly effected by the ratio of the pore throat.The theory is that when the pore is full of oil, the layer of the conductor decreases and the length of it increases.

Key words: quartz, pore structure, diagenesis, rock-electric testing, mercury-injection curve, resistivity index

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