FIELD: oil producing industry.
SUBSTANCE: invention is designed for damping loads appearing in operation of pumping units and well equipment. Proposed damping coupling for well equipment has cylindrical housing with holes on its side surface. Cylindrical housing is closed from ends by upper and lower covers with cylindrical holes along axis and with grooves for seals. Upper and lower pistons with cylindrical rods are arranged inside cylindrical housing. Upper and lower pistons are provided with grooves on side surface for seals, and inclined holes connecting spaces under and over pistons. Inclined holes diameter is by factor of magnitude less than holes on side surface of cylindrical housing. Holes on side surface of cylindrical housing are located near upper cover and near lower cover and symmetrically near center of cylindrical housing. Pistons ate installed in cylindrical housing, and cylindrical holes of covers for displacement along axis of cylindrical housing and for rotation relative to each other. Sucker rods of pumping unit are connected to rod of upper piston, and plunger of deep-well sucker-rod pump is connected to rod of lower piston. Well plays part of liquid bypass channel.
EFFECT: prevention of parting and turning of sucker-rods in operation of deep-well sucker-rod pump.
2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| EQUALIZER TO COMPENSATE DYNAMIC LOADS ACTING ON RODS | 2004 |
|
RU2273715C2 |
| OIL-WELL SUCKER-ROD PUMP FOR MARGINAL WELL | 2000 |
|
RU2178834C2 |
| TELESCOPIC DEEP-WELL ROD PUMP | 2021 |
|
RU2774000C1 |
| WELL DAMPER FOR ROD STRING | 0 |
|
SU1006700A1 |
| REAGENT FEEDER ON ROPE SUSPENSION | 2019 |
|
RU2720724C1 |
| SUCKER-ROD SUBSURFACE PISTON PUMP | 2018 |
|
RU2696837C1 |
| SUCKER-ROD PUMP PLANT | 0 |
|
SU1749545A1 |
| WELL PUMPING UNIT WITH ANCHOR UNIT FOR PIPELESS OPERATION OF SMALL-DIAMETER WELLS | 2020 |
|
RU2740375C1 |
| VALVE UNIT OF SUCKER-ROD PUMP | 1992 |
|
RU2086809C1 |
| COMPENSATOR DYNAMIC LOADS OF RODS | 2005 |
|
RU2372472C2 |
