Oil & Gas Geology ›› 2002, Vol. 23 ›› Issue (4): 364-367.doi: 10.11743/ogg20020413

Previous Articles     Next Articles

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

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

CLC Number: