摘要
快速分析井底磁异常并预报井底盲矿是三分量磁测井的一项重要任务,它关系到钻探是否继续加深。总结几种典型的可能见矿的理论模型和实测磁异常ΔZ(磁异常垂直分量)、ΔH′(磁异常水平分量模差)曲线特征,选取鄂东南地区应用三分量磁测井找到井底盲矿的实例,探讨利用磁异常ΔZ、ΔH′发现井底盲矿的适用性,为三分量磁测井合理应用提供借鉴。
Rapid analysis of bottomhole magnetic anomaly and prediction of bottomhole blind ore is an important task of three-component magnetic logging,which is related to whether drilling continues to deepen.The characteristics of several typical theoretical models and measuredΔZ(vertical component of magnetic anomaly)andΔH′(horizontal component of magnetic anomaly)curves which indicates possible ore are summarized.This paper selects the application of three-component magnetic logging in the southeast of Hubei Province.The example of finding blind ore at the bottomhole discusses the applicability of using magnetic anomaliesΔZ andΔH′to find blind ore at the bottomhole,and provides reference for the practical application of three-component magnetic logging.
作者
周耀质
刘敏
李辉
Zhou Yaozhi;Liu Min;Li Hui(First Geological Brigade of Hubei Geological Bureau,Daye,Hubei 455100)
出处
《资源环境与工程》
2023年第2期201-207,243,共8页
Resources Environment & Engineering
基金
湖北省地质勘查基金项目“地球物理测井方法在鄂东地区的应用研究”(2007-35)。
关键词
三分量磁测井
井底磁异常
磁铁矿
盲矿
three-component magnetic logging
bottomhole magnetic anomaly
magnetite
blind ore
