新疆石油地质

新疆石油地质 ›› 1998, Vol. 19 ›› Issue (6): 473-475.

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不同温压条件下砂岩m、a、n、b值的变化特征

赵发展, 蔡敏龙   

  1. 新疆石油管理局测井公司研究所 克拉玛依 834000
  • 收稿日期:1998-03-13 发布日期:2020-09-19
  • 作者简介:赵发展: 高级工程师 地球物理测井

CHANGE OF m, a, n AND b VALUES UNDER DIFFERENT TEMPERATURES AND PRESSURES

Zhao Fazhan, Cai Minlong   

  1. Research Institute, Logging Company, Xinjiang Petroleum Administration Bureau, Karamay 834000
  • Received:1998-03-13 Published:2020-09-19
  • About author:Zhao Fazhan, Senior Engineer, Geophysical Logging

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摘要： 在实验室的高温高压条件下与在常温常压条件下测量的岩心电阻增大率和地层因素, 计算得到的胶结指数(m)、饱和度指数(n)、地层常数(a, b)均有一定的差别,分析这种差别的原因是由于离子在不同温度下导电性能不同引起的, 指出如果用常温常压条件下测量的参数进行测井资料解释时必须进行参数校正。

关键词: 砂岩, 温度, 压力, 胶结系数, 含水饱和度, 指数, 地层, 常数

Abstract: Calculated cementation index(m), saturation index(n)and formation constants(a, b)from the measured resistance increasing rate and formation factor under high temperature and high pressure are different from those under ambient conditions.Study showed that it results from different electrical conductivity of ions under different temperatures. Moreover, it is pointed out that the parameters measured at ambient conditions must be corrected for log interpretation.

Key words: Sandstone, Temperature, Pressure, Cement index, Water saturation, Index, Formation, Constant