期刊文献+

岩电参数影响因素研究 被引量:32

Study on Influencing Factors of Lithological-Electrical Parameters
下载PDF
导出
摘要 复杂的地层条件使得岩电参数值与理论值有显著差异。通过大量岩电实验数据,研究了渗透率、孔隙度、润湿性、地层水矿化度及孔隙结构对岩电参数的影响,认为阿尔奇公式中的a值反映了岩石中泥质成份的附加导电性,泥质含量越高,a值越小;m值是对岩石中孔隙迂曲度的度量,迂曲度越高,m值越大;b值可反映岩石的润湿性,n值反映了岩石的润湿性和孔隙结构特征,其值随地层水矿化度的增加明显增大。这些认识对准确理解与应用岩电参数提供了一定的依据。 The complexity of formation condition causes obvious difference between actual value and theoretical value in lithological-electrical parameters of the formation.Based on large number of experimental data of lithological-electrical experiments,influences of permeability,porosity, wettability,salinity of formation water and porous structure on the lithological-electrical parameters are analyzed,then obtained are following understands. Parameter 'a' in Archie formula reflects the additional electric conductivity produced by clay in rock,the higher the content of clay is,the smaller the value of 'a' will be.Parameter 'm' is a measurement of tortuous degree of the pore structure,the higher the tortuous degree,the bigger the value of 'm'.Parameter 'b' can partly represents the wettability of rock.Parameter 'n' reflects the wettability and microcosmic pore structure,its value increases obviously with increase of salinity of formation water.All of these can be helpful in correctly understanding and applying lithological-electrical parameters.
作者 殷艳玲
出处 《测井技术》 CAS CSCD 2007年第6期511-515,共5页 Well Logging Technology
关键词 阿尔奇公式 岩石电阻率参数 润湿性 迂曲度 孔隙结构 Archie formula,lithological-electrical parameters,wettability,tortuous degree,pore structure
  • 相关文献

参考文献12

二级参考文献8

共引文献185

同被引文献355

引证文献32

二级引证文献94

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部