FIELD: hermetics.
SUBSTANCE: invention relates to sealing compositions for insulating thief zones during oil and gas production. Composition contains 50-90% of aqueous solution of naphthenic acids or their derivatives and 10-50% of complex additive, namely aqueous solution of calcium chloride/aluminum hydroxide complex.
EFFECT: increased efficiency of insulation of porous-fractured strata both during boring of well until producing zone and during production well repair operations.
1 tbl, 1 tbl
| Title | Year | Author | Number |
|---|---|---|---|
| OIL RECOVERY ENHANCING COMPOSITION | 2004 |
|
RU2270229C1 |
| AERATED GROUTING MORTAR | 2006 |
|
RU2320694C1 |
| METHOD OF FORMATION OF TEMPORARY BARRIER IN FILTER ZONE OF DEVELOPMENT WELL AND EQUALIZATION OF INJECTIVITY PROFILE OF INJECTION WELLS | 2000 |
|
RU2169261C1 |
| METHOD OF TREATMENT AND DEMUDDING OF BOTTOM-HOLE ZONE OF DEVELOPMENT WELLS | 2000 |
|
RU2172824C1 |
| METHOD OF ELIMINATING LEAKAGE OF CASED COLUMN | 2007 |
|
RU2366801C2 |
| METHOD FOR RESTRICTING BOTTOM WATER AND ANNULUS BLOWOUTS IN PRODUCTION WELLS | 2000 |
|
RU2172825C1 |
| CHEMICAL ADDITIVE FOR MEASURES TAKEN IN OPERATION OF OIL AND GAS WELLS | 2000 |
|
RU2174179C1 |
| CEMENTING METHOD FOR WELL WITH ABNORMALLY LOW RESERVOIR PRESSURE | 2006 |
|
RU2320848C1 |
| REAGENT FOR ISOLATING STRATAL WATER INFLOW | 2007 |
|
RU2338768C1 |
| METHOD OF PRODUCTIVE STRATUM TREATMENT WITH WATER SHUT-OFF AGENT | 2008 |
|
RU2374425C1 |
