The variation rules of apparent formation water resistivity was reflected by using normal probability distribution, according to its changing rules, the fluid property was judged with good result.

开发了一种利用计算机图形绘制多口井测井数据的应用程序，实现了用数学上的正态概率分布法来反映视地层水电阻率的变化规律，并根据其变化规律判别储层的流体性质，效果良好。

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