| 摘要 |
FIELD: oil extraction industry, the pump is used to put oil operational wells and injection wells into production. SUBSTANCE: aim is to increase reliability of pump operation during wells completion stage by drainage with acid treatment due to simplification of structure and giving it new operational functions. The aim is realized due to the fact, that pump, that has cylinder, plunger, delivering and suction valves, the latter is made so, that provides acid pumping-in without lifting pump to surface by relocation of bush, that opens holes under the valve seat. EFFECT: increased reliability of pump operation during wells completion stage. |
