EPS Wellflo 4.0 
EPS Wellflo 4.0 　a)适用试井解释结果对油井进行单井优化，选择最佳完井方案。 　b)预测单井生产能力及生产时间。 　c)为制定开发方案提供依据。 　d)可以对油层污染进行分解，确定污染的主要影响因素。 
WellFlo is a Nodal Analysis program designed to analyze the behavior of petroleum fluids in wells. This behavior is modeled in terms of the pressure and temperature of the fluids, as a function of flow rate and fluid properties. 
The program takes descriptions of the reservoir, the well completion (i.e. the hardware within the well), and the surface hardware (i.e. pipelines etc.), combined with fluid properties data. The program then performs calculations to determine the pressure and temperature of the fluids. 
Different modes of operation can be employed to either solve for flow rate given controlling pressures (typically deliverability calculations), or solving for pressure drops given measured flow rates (typically diagnostic calculations).