补偿泵的能量转换与增产理论的渗流力学浅析──二答邬亦炯先生

Theoretical basis of enhancing oil well productivity by energy compensation pump

通过抽油机在补偿泵工作过程中的能量消耗问题和补偿泵增产与IPR曲线的关系的讨论，再次证明了：1．在补偿泵的工作过程中，抽油机要输出能量，这部分能量转化为由井底将液体提升到动液面的能量，因而节省了油层的弹性能。2．根据渗流力学理论，在动液面相同的情况下，普通泵采油指数的下降速度大于补偿泵，因而后者的总产出量比前者要大；在定产量的工况下，补偿泵的稳产周期比普通泵长，因而也达到了增产的目的。

By means of an analysis of power constimption in the course of operation of an energy compensation pump, it is verified that, (1 ) during the operation of the energy compensation pump, part of the energy provided by the pumping unit is converted into the energy for Iifting the liquid in the bettomhole to the working fluid level, therefore the elastic energy of the oil formation is saved; (2)according to the theory of vadose mechanics, under the condition of identical working liquid levels, the reduction of productivity index of conventional pumps is quicker than that of energy compensation pump, therefore the total production rate by the energy compensation pump is larger than that by the conventional pumps, on the other hand, under a given production rate, the production period of the energy compensation pump is longer than that of the conventional pumps, this means oil well productivity can be enhanced hy using the energy compensation pump.