A new method for determining the working system of electric submersible screw pump for oil production well based on the submergence degree of oil wells
In order to avoid the fact that the oil production system of electric submersible screw pump is not enough liquid supply caused by the screw pump rubber stator rubber and metal rotor and further improve the ef-ficiency,new method for determining the working system of electric submersible screw pump for oil produc-tion well has been established based on the analysis and research of the relationship between submergence de-gree,pump efficiency,and production time.According to the permeability characteristics of oil layer,using Darcy's law,the oil supply capacity of oil layer is calculated and the submersible of oil well is predicted.Final-ly,a new method for determining the working system of oil production well with electric submersible screw pumps is compared with the degree of submergence converted from the measured pressure data of downhole ma-nometers.The working system of more than 100 electric submersible screw pump oil wells determined by this method on site is in line with reality,which achieves a success rate of 100%,a power saving rate of 42.9%and an average improvement of 4.17 percentage points in pump efficiency.
electric submersible screw pumpsubmersibleunderground pressure gaugeoil supply capac-ityground control system
NETL
NSTL
万方数据
