无游梁增距抽油机有关问题的设计计算

Some remarks on long-stroke pumping units without walking beam

介绍了无游梁增距抽油机的主要参数如光杆冲程百分比、光杆速度、加速度、扭矩因数等的计算和平衡计算。通过扭矩因数、速度、加速度曲线对比,认为无游梁增距抽油机具有动力特性较好,每立方米产液量耗电低,井下漏失量小,有利于稠油开采等优点。

The main parameters of the long-stroke pumping unit without walking beam,such as the stroke length percentage,speed and acceleration of the polished rod and the torque factor on the unit,are discussed. It shows that it has the advantages of good dynamic characteristics, lower power consumption, less down-hole leakage and adaptability to thick oil production.