摘要
为了优化磁体设计,加速核磁共振测井仪的研制,本文建立核磁共振测井仪静磁场分布的数学模型,利用有限元方法求取MRIL、CMR及MREx三种核磁共振测井仪的二维静磁场分布,结果表明有限元方法可以方便的求取任意形状磁体的磁场分布,且结果精度较高.
In order to optimize the magnet design and accelerate the development of NMR logging tools, a mathematic model of static magnetic field distribution of NMR logging tools is established in this paper. Finite element method is employed to solve 2-D distribution of three NMR logging tool such as MRIL, CMR and MREx. It is very convenient to get the magnetic field distribution of any shape magnet, and the precision of results is very high.
出处
《地球物理学进展》
CSCD
北大核心
2008年第1期173-177,共5页
Progress in Geophysics
基金
中国石油天然气集团公司国际合作项目(04D30101)资助
关键词
核磁共振测井仪
静磁场分布
磁体设计
有限元
NMR logging tool, distribution of static magnetic field, mgnet design, finite element method
