The analysis of the wear mechanism of the pump and the discussion on its solution Bu Renjian (The Shengli Oil Production Plant of Shengli Oilfield Company, SINOPEC, Dongying 257051, Shandong, China) The management measures of grinding performance, sand prevention in sand formation, and prevention of sand pumping as the means, and expounded some The specific methods and their applications provide technical support for solving the problem of wear of the pump.

With the late stage of the oilfield, especially after entering the extra-high water cut period, the pump efficiency problem of the oil pump becomes more and more important. A prominent problem in the production for a long time is that due to the destruction of the formation cementation, the crude oil contains sand scum, which leads to the wear of the inner wall of the pump plunger or pump cylinder, and the short-term loss of the pump, resulting in a rapid drop in fluid production. Short-term failure of Shengtuo Oilfield (

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