Strong draining heavy ball reaming sand control oil -well pump

The utility model relates to a sand control oil -well pump of oil well production operation, in particular to strong draining heavy ball reaming sand control oil -well pump comprises pump barrel coupling (1), sand control plunger assembly (2), pump barrel (3), compulsory bleeder assembly (4), heavy ball reaming fixed valve assembly (5), and threaded connection is passed through with pump barrel (3) in pump barrel coupling (1), threaded connection is passed through with forcing bleeder assembly (4) in pump barrel (3), force bleeder assembly (4) and heavy ball reaming fixed valve assembly (5) to pass through threaded connection, sand control plunger assembly (2) is through sucker rod threaded connection between rather than the sucker rod of upside. The utility model discloses a spiral sand control plunger, can effectually shake out the oil well and take to ground along with the oil stream, owing to adopt heavy ball reaming fixed valve assembly, the flow surface who has increased the oil recovery in -process is long -pending in the bottom, can guarantee that the bottom valve quick closedown is in order to improve the pump efficiency.