FIELD: oil industry. SUBSTANCE: method involves successive injection of oxygen-containing organic compound into hole bottom zone. Said compound may be methyl or ethyl alcohol, acetate, dimethyl ether, acetic ether, glycerine or mixtures thereof, saturated aqueous solution of potassium nitrate and/or sodium nitrate, 30-35% aqueous solution of muriatic acid. After injection of all reagents into the hole bottom zone the hole is held until the increased pressure in the zone starts dropping, then the formation fluid is stimulated. The amount of reagent is found from mathematical expressions. The oxygen-organic compound can be mixed before injection with 30-35-% aqueous solution of muriatic acid. Said solution may additionally contain a surfactant. EFFECT: higher efficiency. 4 cl
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR TREATMENT OF BOTTOM-HOLE FORMATION ZONE | 1994 |
|
RU2068086C1 |
METHOD FOR ACID TREATMENT OF BOTTOM-HOLE FORMATION ZONE | 1994 |
|
RU2068087C1 |
METHOD FOR THERMOCHEMICAL TREATMENT OF BOTTOM-HOLE ZONE OF BED AND WELL | 1996 |
|
RU2102589C1 |
METHOD OF REAGENT DEMUDDING OF WELLS | 1997 |
|
RU2120546C1 |
METHOD OF OIL POOL DEVELOPMENT | 2001 |
|
RU2188315C1 |
METHOD FOR THERMOCHEMICAL TREATMENT OF BOTTOM-HOLE OIL FORMATION ZONE | 1990 |
|
RU2070283C1 |
OIL FIELD RECOVERY INCREASE METHOD | 2005 |
|
RU2277632C1 |
METHOD FOR KILLING OF DEVELOPMENT WELL | 1995 |
|
RU2054118C1 |
METHOD FOR OPERATING DEEP PUMP PLANT | 1995 |
|
RU2061175C1 |
COMPOUND FOR WELL KILLING | 1996 |
|
RU2068080C1 |
Authors
Dates
1994-11-30—Published
1992-11-04—Filed