FIELD: oil and gas production.
SUBSTANCE: procedure for isolation of water influx into well consists in preparation of backfilling composition, in its pumping down into water saturated interval of bed and in successive conditioning for formation of polymer stone; in temperature interval from 20 to 60°C there is used backfilling composition containing weight shares: carbamide-formaldehyde resin SF-NS 100, resorcin 7-15, ferro-chrome-lignosulphonate FHLS-M 1.5-25, filler 4-8; in temperature interval from 60 to 110°C there is used backfilling composition containing weight shares: phenol-formaldehyde resin SFZH-3027B 100, resorcin 1.5-10, ferro-chrome-lignosulphonate FHLS-M 1.0-10, filler 4-8.
EFFECT: raised efficiency of isolation operations in wells due to utilisation of industrially produced synthetic carbamide-formaldehyde and phenol-formaldehyde resins of resol type facilitating backfilling works in wide temperature range.
3 cl, 3 tbl, 34 ex
| Title | Year | Author | Number |
|---|---|---|---|
| POLYMER BACKFILLING COMPOSITION FOR ISOLATION OF WATER INFLUX IN HIGH TEMPERATURE OIL AND GAS WELLS | 2010 |
|
RU2426865C1 |
| POLYMER BACKFILLING COMPOSITION FOR ISOLATION OF WATER INFLUX IN LOW TEMPERATURE OIL AND GAS WELLS | 2010 |
|
RU2426866C1 |
| COMPOSITION FOR SEALING WATER INFLOW IN OIL AND GAS WELLS (VERSIONS) | 2009 |
|
RU2386662C1 |
| DEVELOPMENT METHOD OF BOTTOM-HOLE FORMATION ZONE | 2009 |
|
RU2440490C2 |
| METHOD OF THERMOCHEMICAL FRACTURING | 2012 |
|
RU2527437C2 |
| PLUGGING MATERIAL FOR ISOLATION OF WATER INFLOW TO OIL AND GAS WELLS | 1998 |
|
RU2147332C1 |
| METHOD OF INSULATING WATER PRODUCTION IN WATERED OIL RESERVOIRS | 2007 |
|
RU2352765C1 |
| PLASTIC COMPOSITION FOR ISOLATION AND LIMITATION OF WATER INFLOW INTO WELLS | 2020 |
|
RU2761037C1 |
| REINFORCING COMPOSITION FOR CEMENT MORTARS AND CONCRETES | 2022 |
|
RU2781295C1 |
| POLYMER-CEMENT GROUTING MORTAR | 2006 |
|
RU2319722C1 |
