FIELD: chemistry.
SUBSTANCE: silica is modified with mixture of penetrating agent and hydrophobisator, dissolved in water in amount from 0.1 to 1.0%. Ratio of penetrating agent to hydrophobisator is taken the same as ratio of water to oil fraction of base for repair-insulation works in well. After mechanical mixing of silica and modifying agent technological exposure during 0.5-1 hour and drying of silica are carried out. Claimed invention allows to obtain silica, compatible with water base of material for repair-insulation works in well.
EFFECT: increase of isolation ability of composition for repair-insulation works in well.
1 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ELIMINATION OF LEAKAGE OF PRODUCING WELL COLUMN | 2007 |
|
RU2340761C1 |
| METHOD OF ELIMINATION OF LOWER BOREHOLE ANNULUS CIRCULATION IN WELL | 2007 |
|
RU2340760C1 |
| GROUTING MATERIAL FOR REPAIR-INSULATING WORKS IN WELL | 2007 |
|
RU2340648C1 |
| REAGENT FOR GROUTING MORTAR | 2007 |
|
RU2340649C1 |
| METHOD OF SELECTIVE RESTRICTION INFLOWS IN DEVELOPMENT WELLS | 2000 |
|
RU2184836C2 |
| METHOD FOR WATER INFLUX ZONE ISOLATION IN WELL | 2005 |
|
RU2283422C1 |
| METHOD FOR LIMITING WATER INLUX IN WELL | 2010 |
|
RU2418153C1 |
| METHOD OF PREPARING HYDROPHOBIC DISPERSE MATERIAL | 1996 |
|
RU2089499C1 |
| PROCEDURE FOR REPAIR-ISOLATION OPERATIONS IN WELL | 2010 |
|
RU2424418C1 |
| COMPOSITION FOR REPAIR AND WATER-SHUTOFF OPERATIONS IN OIL AND GAS WELLS | 2003 |
|
RU2242606C1 |
