FIELD: oil and gas industry.
SUBSTANCE: lining method of bottom-hole zone of productive formation includes successive pumping of aqueous solution of metal salt to formation through production well, and as a plugging mixture of calcium chloride aqueous solution is used forming water-insoluble compound - voluminal sediment under formation conditions. Solutions are pumped according to stoichiometric coefficients providing the largest output of sediment. As aqueous solution of metal salt aqueous solution of sodium hydro-carbonate with concentration 10-20 wt % is used.
EFFECT: increasing efficiency of lining by forming steady voluminal sediment under maximum preservation of capacitative and filtration characteristics of bottom-hole zone of productive formation, enlarging range of chemical agents during the method implementation.
2 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF FASTENING BOTTOM-HOLE ZONE OF RESERVOIR | 2019 |
|
RU2724828C1 |
| METHOD FOR SELECTIVE TREATMENT OF BED | 2003 |
|
RU2236559C1 |
| DEVELOPMENT METHOD OF BOTTOM-HOLE ZONE OF TERRIGENOUS OIL FORMATION | 2011 |
|
RU2475638C1 |
| TREATMENT METHOD OF BOTTOMHOLE FORMATION ZONE WITH TERRIGENOUS TYPE OF RESERVOIR | 2019 |
|
RU2724833C1 |
| POLYMER COMPOSITION FOR IN-BED WATER ISOLATION | 2013 |
|
RU2524738C1 |
| METHOD OF RESTRICTION OF BOTTOM WATER AND ANNULUS OVERFLOWS IN PRODUCTION WELLS | 2006 |
|
RU2350737C2 |
| METHOD OF HYDRAULIC FRACTURING AND ATTACHMENT OF FORMATIONS FORMED WITH LOOSE UNCEMENTED ROCKS | 2010 |
|
RU2416025C1 |
| METHOD OF STABILIZATION OF BOTTOM-HOLE PRODUCING FORMATION ZONES | 1999 |
|
RU2172811C2 |
| METHOD OF HYDRAULIC FRACTURING AND SUPPORTING OF LAYERS | 2013 |
|
RU2534374C1 |
| INSULATION METHOD OF FORMATION WATER INFLOW AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2013 |
|
RU2554957C2 |
