FIELD: oil and gas production.
SUBSTANCE: according to procedure for isolation of fluid influx in oil and gas wells there is prepared mixture of 20-40 % colloid solution of silicon oxide (IV) and hydrochloric acid. Also, hydrochloric acid is added into solution of silicon oxide till there is achieved value of pH=6.5-7.0, whereupon mixture is pumped into a well.
EFFECT: ensuring water isolating operations in oil and gas wells.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| METHOD OF ISOLATION OF WATER SUPPLY IN OIL-EXTRACTING WELL | 2017 |
|
RU2655495C1 |
| METHOD OF PRODUCTIVE STRATUM TREATMENT WITH WATER SHUT-OFF AGENT | 2008 |
|
RU2374425C1 |
| METHOD FOR ISOLATING BED WATERS INFLUX IN WELLS | 2003 |
|
RU2249670C2 |
| METHOD FOR LIMITING WATER INFLUX IN WELL | 2012 |
|
RU2494225C1 |
| GEL-FORMING COMPOUND FOR RESTRICTION OF WATER INFLOW TO WELL | 2009 |
|
RU2418030C2 |
| PLASTIC COMPOSITION FOR FORMATION WATER INFLOW INSULATION IN WELL AND STABILIZING OF PRODUCING FORMATION AND METHOD OF ITS APPLICATION | 2016 |
|
RU2627786C1 |
| INSULATION METHOD OF FORMATION WATER INFLOW IN WELL AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2010 |
|
RU2446270C1 |
| METHOD OF RESTORATION OF WATER-FLOODED GAS OR GAS CONDENSATE WELL AFTER HYDRAULIC FRACTURING OF FORMATION | 2019 |
|
RU2740986C1 |
| INSULATION METHOD OF FORMATION WATER INFLOW AND LINING METHOD OF BOTTOM-HOLE FORMATION ZONE | 2013 |
|
RU2554957C2 |
| BOTTOM WATER ISOLATION METHOD | 2013 |
|
RU2569941C2 |
