【摘要】 介绍了用振型叠加法求解抽油杆振动波动方程的方法,并求出了悬点运动使泵柱塞产生的超冲程;还给出了综合考虑抽油杆、油管变形对泵的冲程损失、超冲程、气体及泵充满程度等产生影响时的泵排量系数的计算公式;比较了异相机不同工况下的增产效果,分析了异相机的增产机理。更多还原

【Abstract】 This paper is about resolving the vibration equations ofthe sucker rod with the help of vibration--pattern superpositionmethod and deriving the extra stroke of the pump plunger be-cause of suspending--point movement. The authors also give outthe formula for calculating pump displacement coefficientunder a comprehensive consideration of stroke loss because oftubing and sucker rod deformation, extra stroke, gas and de-gree of pump suction. The paper also discussed the delive-ry--boosting mechanism of the pumping units with phasedcrank counterbalance.更多还原