The pump efficiency of 32% rod pumped wells in Erlian Oilfield is lower than 30%, and increasing production centralizer is introduced to solve this problem.

• 二连油田有32%25的抽油机井泵效低于30%25,为此有针对性地引进了增抽扶正器配套工艺。增抽扶正器具有减少冲程损失、减少漏失、抽油杆扶正以及实现分段举升,减轻抽油杆的疲劳负荷等功能。