中空气举柱塞在油井液中下行运动分析

Analysis of Downward Movement of Gas Lift Hollow Plunger in Oil well Fluid

依据柱塞气举中常用的空心柱塞的结构和运动特点 ,从力的平衡方程出发 ,导出了空心柱塞在油井液中下落的运动速度、间隙中流体的流速分布和激动压力梯度的解析解 ,计算结果与实际观测结果一致。

Based on the characteristics of the structure of a hollow plunger and its movement during gas lift operation, a downward movement velocity of the plunger in oil well fluid is derived,a velocity distribution of fluid flowing in the clearance and an analytic solution of actuated pressure gradient are established in combination with force balanced equations The result obtained is consistent with the actual observation