FIELD: mining.
SUBSTANCE: invention concerns methods of oil lifting from wells. The method involves installation of a perforated casing pipe and oil well tubing with a reverse valve in the bottom part. The reverse valve is also installed in the casing pipe above the perforation interval with the help of a packer. Well fluid is lifted through the central hole of the oil well tubing by displacing the fluid with natural gas compressed to the necessary pressure and pumped to the hole clearance of the oil well tubing. At that, fluid level in the hole clearance should not fall to the bottom of the oil well tubing.
EFFECT: streamlining of fluid lifting from the well bottom to the surface, reduction of fluid lifting expenses and improvement of environmental situation.
1 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF LIFTING WATER FROM WELLS | 2011 |
|
RU2465442C1 |
| LONG-STROKE DEEP-WELL PUMPING UNIT | 1997 |
|
RU2125185C1 |
| METHODS OF INFLUX STIMULATION OUT OF BED BY MEANS OF REDUCING LEVEL OF WELL FLUID OF NEW AND REPAIRED OIL FLOWING WELLS WITH FOLLOWING MAINTAINING OF STATIC LEVEL | 2007 |
|
RU2330947C1 |
| COMPOUND METHOD FOR OIL DISPLACEMENT OUT OF BED BY WATER-ALTERNATED-GAS INJECTION WITH USE OF WELL-HEAD EJECTORS | 2012 |
|
RU2512150C2 |
| STIMULATION OF RESERVOIR INFLOW BY REDUCING LEVEL OF WELL FLUID IN NEW AND REPAIRED OIL BLOWING WELLS WITH SUCCESSIVE MAINTAINING OF STATIC LEVEL | 2008 |
|
RU2366809C1 |
| OIL-WELL PUMPING UNIT | 2011 |
|
RU2440514C1 |
| METHOD AND DEVICE FOR WELL BOTTOM ZONE DEVELOPMENT AND CLEANING BY IMPULSE DRAINAGE | 2004 |
|
RU2272902C1 |
| METHOD OF OPERATING POOR DROWNED GAS CONDENSATE WELLS | 2011 |
|
RU2463440C1 |
| METHOD FOR KILLING OF DEVELOPMENT WELL | 1995 |
|
RU2054118C1 |
| METHOD OF THERMAL ISOLATION OF INJECTION WELL | 0 |
|
SU857442A1 |
