The results show that the different values of a and m calculated from the same exact experimentation have different effects on resistivity of formation saturated by water and water saturation because the porosity is different in the formation.

• 研究发现,在岩电实验数据准确可靠的前提下,通过不同处理方法得到的关于同一组岩心的不同a,m值,因地层孔隙度的不同而对R0和Sw计算结果的影响也不同。