再论发展长冲程抽油机的现实意义

根据当前石油工业发展的需要，以及近年来国内长冲程抽油机发展的状况，再次强调了发展长冲程抽油机的现实意义。发展长冲程抽油机不仅有利于减缓老油田高含水开采后期原油产量递减速度，而且有利于开发稠油、低渗透等油田的“难动用储量”，还有利于对沙漠油田深井及超深井的开采。简述了近年来国内长冲程抽油机的发展概况，对长冲程抽油机的优点及不足进行了剖析。最后提出了关于发展长冲程抽油机的三点建议。

More remarks on practical significance of developing long stroke pumping unit

According to the need of the development of the petroleum industry at present, and in the light of the status of the development of long stroke pumping units at home in recent years, the practical significance of developing long stroke pumping units are stressed once again. Developing long stroke pumping units is favourable not only for lowering the speed of progressive decrease in the production of old oilfields in the later period of recovery, but for devloping viscous oil and low-permeability mervoirs, and for the recovery of crude oil from deep holes and ultra-deep holes in desert oilfields. An overview of the development of long stroke pumping units at home in recent years is presented, the advantages and disadvantages of long stroke pumping units are analyzed, and suggestions for developing long stroke pumping units are put forward.