Application of inclined well pump with sand exclusion in sand producer of Xia'ermen oilfieid

This paper introduces the structure and operation mechanism of the inclined well pump with sand exclusion, which can makes up the defects of sand-blocked and plunger-jammed and eliminates the problem of sucker rod occurred in ordinary pumps.This is because it has the devices such as long plunger,short pump barrel,reten- tion device and sand-settling device.The application re- sult of sand producer in Xi'ermen oilfield shows that this kind of pump can effectively prevent the pump from wear- ing out and sand-jammed,reduce the dropouts of sucker rod and prolong the service life of it.