FIELD: mining, particularly, methods of forced recovery of oil from formation by creation of vacuum in well with help of foam systems. SUBSTANCE: method includes building-up of pressure differential in formation bottomhole zone of drilled and cased well with tubing string. This is accomplished by lowering of well fluid level by system of separate phases, one of which is air phase. Air and water phases are injected into annular space between tubing string and well walls through head. Volume of water phase is determined by analytical relationship. EFFECT: higher efficiency of inflow stimulation of oil from producing formation. 1 dwg, 2 tbl, 1 ex
Title | Year | Author | Number |
---|---|---|---|
METHOD OF INITIATING INFLOW FROM BED | 2011 |
|
RU2464416C1 |
WELL COMPLETION METHOD | 1998 |
|
RU2127805C1 |
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 |
METHOD TO CALL INFLOW OF FORMATION FLUID FROM WELL | 2011 |
|
RU2466272C1 |
METHOD OF CAUSING FLUID INTRUSION FROM WELL | 2011 |
|
RU2470150C1 |
METHOD FOR INITIATING INFLOW FROM FORMATION AND DEVICE FOR ITS IMPLEMENTATION | 2011 |
|
RU2459944C1 |
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 |
STIMULATION METHOD OF FORMATION FLUID INFLUX FROM WELL | 2011 |
|
RU2485305C1 |
STIMULATION METHOD OF FORMATION FLUID INFLUX FROM WELL | 2011 |
|
RU2485302C1 |
STIMULATION METHOD OF FORMATION FLUID INFLUX FROM WELL | 2011 |
|
RU2472925C1 |
Authors
Dates
2003-08-10—Published
2000-11-20—Filed