FIELD: chemistry.
SUBSTANCE: invention relates to oil and gas industry, particularly to compositions used to seal influx of water into a well. The composition for sealing influx of water into a well consists of a silicon-containing compound, a titanium salt and a solvent. The silicon-containing compound is liquid glass, the titanium salt is triethanolamine titanate - TEAT-1, and the solvent is process water, with the following ratio of ingredients, wt %: liquid glass 30-37, TEAT-1 4-8, process water - the balance.
EFFECT: composition for sealing influx of water into a well with improved anti-corrosion properties, with controlled gel time, which provides deeper penetration of the composition into the porous environment of a waterlogged formation and creating a deeper insulation shield, with preservation of high sealing properties, which reduces permeability of a waterlogged formation and a durable insulating shield.
1 tbl, 3 ex
| Title | Year | Author | Number |
|---|---|---|---|
| VISCOUS ELASTIC COMPOSITION FOR BOREHOLE OPERATIONS | 2008 |
|
RU2380394C2 |
| ISOLATION METHOD OF WATER INFLUXES TO WELL | 2013 |
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|
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| COMPOSITION FOR INSULATION OF WATER INFLOWS TO GAS WELLS AND METHOD FOR ITS MAKE-UP | 2014 |
|
RU2571458C1 |
| METHOD OF ELIMINATING ZONES OF LOSS IN WELL | 2007 |
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| METHOD OF RESTRICTION OF WATER INRUSH IN WELL | 2007 |
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RU2360099C1 |
