长冲程无游梁抽油机集锦与发展研究

本文集锦了国内外１５种典型长冲程无游梁抽油机，扼要地介绍了它们的结构特点与工作原理和经济效益。分析结果表明：长冲程无游梁抽油机比增大冲程游梁抽油机和增大冲程无游梁抽油机更优越、更先进，是长冲程抽油机的发展方向，也是我国抽油机的发展方向。结合我国具体情况，提出了发展我国长冲程无游梁抽油机的６点建议。

COLLECTION AND DEVELOPMENT RESEARCH OF LONG STROKE NON-BEAM PUMPING UNITS

This paper presents 15 typical long stroke non-beam pumping units at home and abroad,briefly introducing their structural features,operation principles and economic benefits.The analysis results show that long stroke non-beam pumping units are more superior and advanced than increment stroke beam pumping unit and increment stroke non-beam pumping unit.It is the developing trend of both long stroke pumping units and Chinese pumping units.Considering current situation in China,this paper gives 6 pieces of advice to develop this technology in China.