FIELD: oil producing industry.
SUBSTANCE: proposed centrifugal submersible pumping unit includes electric motor with hydraulic protection connected to piping string, centrifugal pump installed blow and transmission shaft. Transmission shaft consists of separate sections connected to each other. Electric motor with hydraulic protection, centrifugal pump and transmission shaft are provided with through vertical hole along axis. Sections of transmission shaft are installed on seals. Lower section of transmission shaft is connected to intermediate chamber provided with hole on lower end face in form of saddle and vertical channel with check valve to communicate intermediate chamber with well space.
EFFECT: provision of possibility of carrying out studies or underground works without lifting equipment from well to surface.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SUBMERSIBLE CENTRIFUGAL HIGH-LIFT ELECTRIC PUMP FOR LIFTING OF LIQUID FROM WELL | 2001 |
|
RU2194882C2 |
| SUBMERSIBLE CENTRIFUGAL HIGH-PRESSURE ELECTRIC PUMP FOR LIFTING LIQUID FROM WELL | 2005 |
|
RU2300022C1 |
| DOWNHOLE PUMP | 2014 |
|
RU2549937C1 |
| SUBMERSIBLE CENTRIFUGAL HIGH-LIFT ELECTRIC PUMP FOR LIFTING LIQUID FROM WELL | 1997 |
|
RU2140575C1 |
| SUBMERSIBLE CENTRIFUGAL HIGH-PRESSURE ELECTRIC PUMP FOR LIFTING LIQUIDS FROM WELLS | 2001 |
|
RU2205986C2 |
| ELECTRIC SUBMERSIBLE GEAR PUMP INSTALLATION | 2018 |
|
RU2746292C2 |
| SUBMERSIBLE CENTRIFUGAL PUMPING UNIT | 2002 |
|
RU2224912C2 |
| SUBMERSIBLE CENTRIFUGAL PUMPING UNIT | 2001 |
|
RU2218481C2 |
| DOWNHOLE PLANT FOR SIMULTANEOUS-SEPARATE OPERATION OF TWO BEDS OF SINGLE WELL (VERSIONS) | 2014 |
|
RU2546685C2 |
| SUBMERSIBLE PLANT WITH FLEXIBLE CONNECTION | 2011 |
|
RU2480628C2 |
