应用自然伽马能谱求取砂岩渗透率的方法  

A Method for Obtaining Permeability in Sandstone with Natural Gamma-ray Spectrnm

作　　者：胡玉堂[1] 向东[2] 陈汉林[1] 王立新[1] 闫安宇[1] 胡小玲[1] 

机构地区：[1]中原石油勘探局测井公司,河南濮阳457001 [2]中原油田分公司勘探开发科学研究院,河南濮阳457001

出　　处：《江汉石油学院学报》2003年第3期69-70,共2页Journal of Jianghan Petroleum Institute

摘　　要：根据自然伽马能谱的特点,在渗透率理论计算方法的基础上,利用实际岩心分析资料,推导出了一种直接使用自然伽马能谱钍曲线及孔隙度曲线求取渗透率的方法。这种方法具有直接、直观的特点。通过在文留油田的实际应用,表明测井所求渗透率与岩心分析结果相吻合,具有良好的应用前景。Based on the characteristics of natural gamma-ray spectrum, a new method is derived for obtaining permeability by directly using natural gamma-ray spectral thorium curves and porosity curves. The new method is direct and visual. Its application in Wenliu Oilfield indicates that the permeability obtained in well logging is matched with the result of core analysis, which is of good prospects of application.

关 键 词：自然伽马能谱测井 渗透率 孔隙度 文留油田 

分 类 号：P631.84[天文地球—地质矿产勘探]