FIELD: oil producing industry. SUBSTANCE: method for killing wells to be repaired involves injection of displacement fluid into the bottom-hole formation zone followed by injection of blocking and killing fluids. The displacement fluid may be aqueous solution of anionogenic surfactant based on alkylbenzene sulfonates sulfonols and aqueous solution of non- ionogenic surfactant ethoxy alkylphenols neonols. The water-hydrocarbon emulsion is Dicin (petroleum product). The blocking fluid contains (% mass) crude oil 10-20, emulsifier 2-5, stabilizing agent 0.05-0.10, and some salt solution the rest. EFFECT: higher efficiency. 2 cl, 1 tbl
Title | Year | Author | Number |
---|---|---|---|
METHOD FOR WELL BOTTOM ZONE TREATMENT | 2004 |
|
RU2270913C2 |
METHOD OF DEVELOPING NONUNIFORM HYDROCARBON POOL | 1999 |
|
RU2167280C2 |
METHOD OF TREATING BOTTOM ZONE OF LOW-PERMEABLE OIL RESERVOIRS | 2003 |
|
RU2244111C1 |
PROCESS OF EXPLOITATION OF HIGHLY VISCOUS OIL FIELD | 1999 |
|
RU2169835C2 |
COMPOSITION AND METHOD OF PREPARING HYDROPHOBIC EMULSION IN INTEGRATED WELL-KILLING TECHNOLOGY | 1999 |
|
RU2156269C1 |
WELL KILLING METHOD | 0 |
|
SU1629501A1 |
METHOD OF DAMPING OIL AND GAS WELLS WITH HIGHLY PERMEABLE FRACTURES OF THE HYDRAULIC FRACTURING (VARIANTS) | 2017 |
|
RU2662720C1 |
METHOD OF DAMPING OIL AND GAS WELLS IN COMPLICATED CONDITIONS (OPTIONS) | 2017 |
|
RU2662721C1 |
COMPOSITION, METHOD FOR PRODUCING AND APPLICATION OF BLOCKING HYDROPHOBIC EMULSION IN COMBINED WELL KILLING TECHNIQUE | 2006 |
|
RU2327727C1 |
METHOD FOR PROCESSING BOTTOMHOLE FORMATION ZONE | 2014 |
|
RU2583104C1 |
Authors
Dates
1995-11-10—Published
1992-01-27—Filed