FIELD: oil and gas production.
SUBSTANCE: invention provides fluid comprising aqueous liquid and above-defined block copolymer, which is especially suitable within high-temperature ranges above 180оС. Viscosity of fluid is stable at high temperatures and fluid is capable of suspending and transporting proppants and nearly does not damage of formation and preserves its efficiency upon action of various chemical conditions.
EFFECT: improved performance characteristics.
32 cl, 6 tbl, 17 ex
