Sand proof oil well pump

The sand proof oil well pump designed and manufactured by our company is mainly used in oil wells where sand jamming and grinding often occur during conventional pumping due to severe sand production, resulting in premature failure of the oil well, frequent operations, and increased production costs.

Structure and working principle

Working principle: The long plunger anti sand pump adopts a long plunger, short pump barrel, and annular sand settling structure. It mainly consists of a long plunger, short pump barrel, sand settling outer cylinder, double joint, and sand scraping device. In addition, a dedicated sliding sleeve oil drain can be installed to achieve oil drainage. We can also provide customers with a fixed valve with an anti falling object structure and a lateral liquid outlet to prevent foreign objects from falling into the fixed valve from the upper end and causing blockage.

During the working process, regardless of the position of the plunger, there is always a section of plunger exposed above the pump barrel. At the same time, the sand scraping device plays a role in scraping and separating sand, which can prevent sand from entering the gap between the plunger and pump barrel. Sand particles can only sink into the annular space between the pump barrel and the outer pipe, effectively preventing sand jamming, reducing wear between the pump barrel and plunger, and extending the service life of the pump.

Main technical parameters