摘要
本文选用一定孔隙度的饱含油或盐水的地层,分别讨论介电测井球面波模型中介电响应关于频率、源距的变化规律,确定了介电测井仪器的工作频率,最大和最小源距等参数;利用Lambert W函数性质针对该模型进行推导和求解,得到了介电常数,电导率关于相位差和幅度比的解析表达式.通过编程计算,并与迭代算法比较,计算精度有较大提升.
In this paper we choose formations of certain porosity saturated with oil or brine,discuss the dielectric response law of frequency,spaced response in spherical wave model respectively,thus determining the working frequency,maximum and minimum spacing of dielectric logging tool.Using the Lambert W function properties,we derive spherical wave model and obtain analytic expression about dielectric constant and conductivity on the phase difference and amplitude ratio.Through the programming calculation,and comparison with the iterative algorithm,the calculation accuracy has been largely improved.
出处
《地球物理学进展》
CSCD
北大核心
2014年第6期2785-2790,共6页
Progress in Geophysics
基金
西安石油大学全日制硕士研究生创新基金(2012cx110826)资助
