| 摘要 |
FIELD: oil and gas production industry. SUBSTANCE: liquid for hydraulic fracturing of bed contains following components, mas.%: technical lignosulfonates modified by hexamethylenetetramine and carbamide 40.98-43.31, potassium chloride 3.70-4.32, aluminium sulfate 0.52=1.03, and brine water - the balance. Aforesaid liquid reveals improved technological parameters due to reduction of filtration loss, it possesses improved structural and mechanical properties and better pumping capacity and at same time its cost is reduced. EFFECT: higher efficiency. 1 tbl, 1 ex
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