From quantitative research, classify the flow unit in the core segments by using probability statistics and systematically cluster analysis, the result of identification of the flow unit is 4 by using probability statistics.

• 然后，从定量研究的角度，分别采用了概率统计法和系统聚类分析法对取心井段进行了流动单元划分，运用概率统计法将该区流动单元划分为4类。