FIELD: oil and gas producing industry; multi-purpose process fluids; primary and secondary formation exposing, hydraulic fracturing of formation.
SUBSTANCE: proposed emulsion is used for blocking sections of producing formation and water-bearing formation, killing and conservation of wells; emulsion may be also used as above-packer fluid under complex action of high temperature, pressure and content of acid gases. Proposed hydrophobic emulsion contains hydrocarbon and water phases, vol-%: used as water phase is aqueous ammonia solution of mixture of monovalent and bivalent salts of nitric acid, 57.0-70.0; aminoalcohol additionally, 0.1-5.0; the remainder being compound of waste automobile oils used as hydrocarbon phase. Composition is universal; it does not contain solid phase and may be used at any oil or gas fields.
EFFECT: enhanced resistance to complex thermobaric action and aggression of acid gases; reduced corrosion activity; reliable protection of underground equipment against hydrogen embrittlement.
2 tbl, 1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| PROCESS FLUID FOR WELL CONSTRUCTION AND REPAIR | 2004 |
|
RU2261888C1 |
| COMPOSITION FOR PERFORMANCE OF REPAIR AND ISOLATING OPERATIONS IN WELL | 1999 |
|
RU2167181C2 |
| EMULSION COMPOSITION FOR WELL PLUGGING | 2014 |
|
RU2562998C1 |
| PROCESS LIQUID FOR LIQUIDATION (LONG-TERM SUSPENSION) OF OIL AND GAS WELLS (2 VARIANTS) | 2016 |
|
RU2650146C1 |
| COMPOSITION FOR PREPARATION OF PROCESS LIQUIDS WITHOUT SOLID PHASE OF DENSITY TO 1,60 g/m | 2010 |
|
RU2427604C1 |
| HYDROPHOBIC EMULSION FOR ISOLATION OF FORMATION WATER INFLOW INTO WELL | 1997 |
|
RU2134345C1 |
| METHOD OF SUBMERGED RESERVOIRS PROCESSING | 2008 |
|
RU2507387C2 |
| WELL PROCESS FLUID WITH CONTROLLED ABSORPTION IN THERMO BARIC-RESERVOIR CONDITIONS | 2008 |
|
RU2380391C1 |
| LIGHT-WEIGHT INVERT DISPERSION | 2000 |
|
RU2176261C1 |
| COMPOSITION FOR PREPARING HIGH-DENSITY NON-SOLID PHASE PROCESS LIQUIDS | 2010 |
|
RU2423405C1 |
