利用自然γ能谱测井资料确定粘土矿物的含量及其应用

J4 ›› 2010, Vol. 40 ›› Issue (1): 215-221.

利用自然γ能谱测井资料确定粘土矿物的含量及其应用

刘菁华¹,王祝文¹,易清平²

1.吉林大学地球探测科学与技术学院|长春 130026;2.江西省核工业地质调查院|南昌 330038

收稿日期:2009-05-14 出版日期:2010-01-26 发布日期:2010-01-26
作者简介:刘菁华(1963-)|女|江西吉水人|教授|博士|主要从事核地球物理、工程与环境地球物理的教学与科研工作|E-mail:jinghua@jlu.edu.cn
基金资助:
四川省地学核技术重点实验室开放基金项目(27-3)；吉林大学种子基金项目(498042300423)

Determinating Clay Mineral Content by Natural Gamma-Ray Spectral Logging Data

LIU Jing-hua¹, WANG Zhu-wen¹, Yi Qing-ping²

1.College of GeoExploration Science and Technology,Jilin University, Changchun 130026|China;2.Institute of Nuclear Geological Survey of Jiangxi Province, Nanchang 330038, China

Received:2009-05-14 Online:2010-01-26 Published:2010-01-26

摘要/Abstract

摘要：

根据粘土矿物含量的图版计算方法，计算了实际井段的粘土矿物含量，分析了高岭石、伊利石和蒙脱石与U、Th、K含量的相关关系，由此分析得到粘土矿物含量与放射性元素含量的多元线性关系，建立了粘土矿物含量计算的回归方程。通过对不同井段以及同一井段不同地层数据建立的回归方程分析，给出了具有代表性的线性回归方程模型。根据一个实际井段粘土矿物的计算，获得粘土矿物含量随深度的变化，其粘土矿物含量计算结果与原测井解释相吻合，同时与岩心分析误差在10%左右。

关键词: 自然γ能谱测井, 粘土矿物, 图版计算, 回归方程

Abstract:

Basing on the chart analysis for clay mineral content, a cross plot of clay mineral content and radioactivity element concentration was obtained, and a multivariate linear relation between clay mineral content and radioactivity element U, Th and K was established, deriving a regression equation to estimate clay mineral content. Through the regression analysis of the data from different well sections or the same well section of different formations, a typical linear regression model was provided. The application of the model to a real well section got a vertical variation of clay mineral, which was in an excellent agreement with the practical interpretations.

Key words: natural gamma-ray logging, clay minerals, chart analysis, regression equation

中图分类号:

P631.622

刘菁华, 王祝文, 易清平. 利用自然γ能谱测井资料确定粘土矿物的含量及其应用[J]. J4, 2010, 40(1): 215-221.

LIU Jing-hua, WANG Zhu-wen, YI Qing-ping. Determinating Clay Mineral Content by Natural Gamma-Ray Spectral Logging Data[J]. J4, 2010, 40(1): 215-221.

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