由地面游梁抽油机、井下抽油杆和井下杆式泵组成的往复杆提升泵送系统是机械采油设备中最常用、也是市场销售最多的设备,在全世界采油设备中占80%以上。近年来,这种系统有过多项改进,如将镀铬泵筒改为镀碳化镍或碳化硅泵筒;材料采用316号不锈钢,以对抗ＣＯ2和Ｈ2Ｓ腐蚀;采... The reciprocating rod lift pumping system composed of ground beam pumping unit, downhole sucker rod and downhole rod pump is the most commonly used and the most market-selling equipment in mechanical oil recovery equipment, accounting for more than 80% of the oil recovery equipment in the world . In recent years, this system has made many improvements, such as chrome-plated cylinder pump to nickel carbide or silicon carbide cylinder pump; material 316 stainless steel to fight CO2 and H2S corrosion;