FIELD: recovery of oil from wells. SUBSTANCE: pump has housing and rotor with radial slots where working vanes are placed. Inner surface of slot is provided with grooves for connection of space of slot under vane with transfer chambers. Vanes are made from wear-resistant polyurethane or from solid alloy on base of tungsten or titanium carbides; inner cavity of cover and sliding bearings are made from the same material and side covers are made from steel. EFFECT: extended functional capabilities; enhanced reliability; increased service life; facilitated procedure; improved service characteristics. 2 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| SCREW-TYPE PERISTALTIC HYDRAULIC MACHINE | 2000 |
|
RU2191927C2 |
| METHOD OF DEVELOPMENT OF MULTILAYER OIL FIELD | 2001 |
|
RU2188938C1 |
| METHOD OF OIL DEPOSIT DEVELOPMENT | 2001 |
|
RU2191257C1 |
| DEVICE FOR FINISHING WELLS | 2002 |
|
RU2225501C1 |
| METHOD OF WATER-FLOODING OF OIL FORMATION | 2000 |
|
RU2175383C1 |
| SUBMERGED ONE-AUGER PUMP BEARING UNIT | 2008 |
|
RU2375604C1 |
| COMPOSITION FOR WELL KILLING | 2000 |
|
RU2184839C2 |
| METHOD FOR EXTRACTING OF OIL DEPOSIT | 2003 |
|
RU2238399C1 |
| INVERTED ACIDIC MICROEMULSION TO TREAT OIL AND GAS FORMATION | 2001 |
|
RU2220279C2 |
| METHOD OF PREPARING DEPRESSANT | 2001 |
|
RU2180339C1 |
