FIELD: oil producing industry; operation of slanted directional wells at high gas factor; operation at dynamic levels at reception of sucker rod pump.
SUBSTANCE: proposed pump has cylinder of insertion pump mounted in tubing string by means of lower lock attachment. It consists of suction valve, radial passages made under edge upper position of plunger with delivery which communicate under-plunger cavity of cylinder with interior of tubing string. Delivery valve is provided with rod-pusher mounted coaxially in its body and fitted with spring-loaded upper end located in sleeve having fins for securing it in valve body; its lower end presses ball to valve seat. Radial passages are made on cylinder in form of two opposite holes.
EFFECT: simplified construction; enhanced efficiency; reduced length of hanger for obtaining required bottom-hole pressure.
| Title | Year | Author | Number |
|---|---|---|---|
| OIL-WELL SUCKER-ROD PUMP | 1999 |
|
RU2173381C2 |
| DEEP-WELL SUCKER-ROD PUMP | 2003 |
|
RU2233995C1 |
| WELL SUCKER-ROD PUMP FOR EXTRACTING LIQUID AND GAS | 2003 |
|
RU2239052C1 |
| WELL SUCKER ROD PUMP | 0 |
|
SU889891A1 |
| METHOD OF RECOVERY OF FLUID AND GAS FROM WELL AND SUCKER-ROD PUMPING UNIT FOR METHOD EMBODIMENT | 2000 |
|
RU2186949C2 |
| OIL-WELL SUCKER-ROD PUMP | 2005 |
|
RU2290537C1 |
| BOTTOM-HOLE PUMP | 2011 |
|
RU2462616C1 |
| DOWNHOLE INSERTION ROD PUMP | 2022 |
|
RU2796725C1 |
| INSERT OIL-WELL SUCKER-ROD PUMP | 2001 |
|
RU2187701C1 |
| COMBINATION WELL LIQUID ELEVATOR | 0 |
|
SU1280192A1 |
