FIELD: oil/gas production. SUBSTANCE: shot zone is pumped in with solution comprising methanol, phosphoric acid, and water. Then the solution is held when the well is being drained and the solution is removed out of the stratum. Then the second process solution is pumped in that comprises methanol, sodium orthophosphate, and water, or depending on deposition type the composition that additionally comprises hydrochloric acid in the second solution. EFFECT: removing silt.
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD FOR TREATMENT OF INJECTION WELL | 1992 |
|
RU2043492C1 |
| COMPOUND FOR OPENING PRODUCING FORMATION AND METHOD FOR TREATMENT WELL WITH THIS COMPOUND | 1992 |
|
RU2042804C1 |
| METHOD TO REMOVE POLYMER-CLAY MUDDING COMPOSITIONS FROM PRODUCING BED | 2005 |
|
RU2299320C2 |
| METHOD FOR MUDDING FORMATION REMOVING FROM HYDROCARBON CONTAINING FORMATIONS | 2004 |
|
RU2272903C1 |
| METHOD FOR REMOVING SEDIMENTATIONS FROM INJECTION WELLS | 1995 |
|
RU2086760C1 |
| METHOD FOR REAGENT TREATMENT OF WELL | 1992 |
|
RU2042803C1 |
| SOLUTION FOR REMOVAL OF POLYMER MUD FILL OF ACRYLIC SERIES | 1992 |
|
RU2042806C1 |
| SOLUTION FOR REMOVAL OF POLYMERIC MUD FILL | 1992 |
|
RU2042805C1 |
| METHOD FOR TREATMENT OF FORMATION | 1993 |
|
RU2053355C1 |
| METHOD FOR TREATMENT OF WELL PERFORATED ZONE | 1992 |
|
RU2042801C1 |
