长冲程抽油机集锦与发展研究

本文集锦了我国长冲程抽油机（７种增大冲程游梁抽油机，９种增大冲程无游梁抽油机和１１种长冲程无游梁抽油机），扼要地介绍了它们的结构，通过对长冲程抽油机的用途、类型和优点分析，表明：增大冲程游梁抽油机是常规抽油机的发展方向；增大冲程无游梁抽油机是增大冲程抽油机的发展方向；长冲程无游梁抽油机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抽油机的４点建议。

COLLECTION AND DEVELOPMENT RESEARCH OF LONG STROKE PUMPING UNIT

This paper has collected Chinese long stroke pumping units(7 kinds of incremental stroke beam pumping units,9 kinds of incremental stroke blue elephants and 11 kinds of long stroke blue elephants),briefly introduced their structures.Through analysis of the usages types and advantages of long stroke pumping units,it shows that incremental stroke beam pumping units are the developing trend of conventional pumping units,incremental stroke blue elephants are the developing trend of incremental stroke pumping units,long stroke blue elephante are the developing trend of both long stroke pumping units and Chinese pumping units. Considering current situation in China,the paper proposes 4 pieces of advice on developing long stroke pumping units in China.