多分量感应测井的刻度研究  

Research on the Calibration for Multi-component Induction Logging Tool

作　　者：卢涛 孙向阳[2] 

机构地区：[1]中国海洋油田服务股份有限公司,北京101149 [2]电子科技大学电子工程学院,四川成都610054

出　　处：《测井技术》2013年第6期629-632,共4页Well Logging Technology

基　　金：国家自然科学基金项目(批准号:61201281;60931004);中央高校基本科研(编号:ZYGX2010J024)

摘　　要：多分量感应测井仪能探测各向异性地层并能提供地层倾角等信息,但对于其横向线圈响应的刻度不能像常规感应测井仪器一样,刻度环的设计和刻度系数的求解都不能照搬常规感应测井仪器的方法。设计适合于横向线圈刻度用的斜刻度环,以及通过有限元法对刻度环的响应进行了电磁建模,得到刻度环与均匀无限大地层电导率的对应关系,即刻度系数。通过实验说明了横向线圈的刻度系数并不能通过几何因子计算得到,实验结果有助于正确理解多分量感应测井仪的刻度原理。Abstract. Multi-component induction logging tool can detect anisotropic tormation and provlae dip information, but, the calibration of the response of transverse coils in the logging tool is different from conventional induction logging, including the design of calibration loop and solving of calibration coefficient. Based on this, we study on the calibration method of the logging tool. By designing a tilted calibration loop for transverse coils in the logging tool and simulating the electromagnetic responses of calibration loop using finite element method, we can get relationship of the calibration loop with homogenous infinite formation conductivity （calibration coefficient）, and then we verify it by experiments. We also illustrate by experiments that the calibration coefficient of transverse coils can not be calculated by geometric factor. This is helpful for the understanding of the calibration theory of multi-component induction logging.

关 键 词：关键词 测井仪器 多分量感应测井 刻度方法 电磁建模 有限元法 

分 类 号：P631.83[天文地球—地质矿产勘探]