Научно-производственное объединение по геолого-физическим методам повышения нефтеотдачи пластов
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FIELD: oil producing industry. SUBSTANCE: compound contains the following components, mass.%: nonionic surfactant 1-10; technical lignosulfonates compatible with water 0.1-2.5; the balance, water. Nonionic surfactant is used in form of neonol or its commercial type in terms of neonol. EFFECT: use of compound makes it possible to ensure degree of protection of nonionic surfactant from chemical destruction up to 80-90% and to decrease toxicity of compound, and adsorption of nonionic surfactant on rock. 3 tbl
SU4666942/03A1989-03-271989-03-27Compound for use in waterflooding of oil formation
SU1653404A1
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