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以相似理论为基础，考虑微可压缩流体的非稳态流动，研究了注水并网模拟实验理论。应用方程分析法（检验分析法），推导出水驱油二维模拟的相似准则。用Buckingham的Ⅱ定理进行验证，可知得出的相似准则中所含无量纲乘积（Ⅱ）个数少，物理意义明确，数据换算清楚。对于平面水驱油模拟实验，在流体不可压缩情况下，其结果可以大为简化。给出的相似准则的相似变量为：残余条件下的油水流度比、无困次时间、无因决压力以及折算合水饱和度。并介绍了原型与模型之间数据换算的计算软件。理论和准则及数据换等软件可很容易推广到三维三相等温渗流模拟实验的情形。
Based on the similar theory, considering the unsteady flow of micro compressible fluid, the simulation experiment theory of water injection was studied. Applying equation analysis (test analysis), a similar criterion for two-dimensional simulation of water flooding is derived. Using the Buckingham’s II theorem, we can see that the similarity criterion has less number of dimensionless products (Ⅱ), clear physical meaning and clear data conversion. For planar water flooding simulation experiments, the results can be greatly simplified in the case of incompressible fluid. Similar variables are given for similar variables as: oil-water mobility ratio under residual conditions, time without difficulty, pressure-free decision, and conversion of water saturation. The calculation software of data conversion between prototype and model is introduced. Software such as theory and guideline and data exchange can easily be extended to the case of three-dimensional three-phase isothermal seepage simulation experiment.