关键词: 低压油气藏, 抽油, 油井动态, 流体流动, 物质平衡方程, 油井管理

Abstract: According to the characteristics of low pressure oil wells，using the law of material bal-ante in wellbore and the regular p&ttern of inflow performance relationship，this paper has developed the mathematical models for calculating the pumping time and pausing .time of in-termittent rod pumping wells. With wellbore diameter and pumping parameters given，
through the solution of the mathematical models，we can calculate the optimum pumping time and pausing time of this kind of wells. At the same time，we can use the models to se-lect the optimum pumping parameters and the pump setting dept卜.This method provides sci-entific bases for the management of low pressure rod pumping wells.

Key words: Low pressure reservoir, Oil pumping, Oil well performance, Fluid flow, Material balance equation, Well management