摘要
阐述了有杆泵井采用长冲程、中低冲次或低冲次抽汲工艺的好处:有利于注水开采井含水率继续上升时保持原油稳产;有利于开采稠油、深油层及低压区块等难动用储量。并对国内已经生产及正在开发的各种长冲程抽油机进行了剖析,指出了对现场在用的常规及异相抽油机进行增程改造的意义。
This article shows the advantages of swabbing technology in rod pump well using long stroke, mdium-low or low strokes per minute, that is, It is favorable to maintain stable productian while water cut rising steadily in water flood oilfield and favorable to recover heavy oil or to recovery petroleum in deep reservoir or in low pressure area. The author analyses the domestic made long stroke well pumping units both in use or in developing and points out the significance of the transformation of lengthening strokes of conventional well pumping units in use.
