METHOD OF TREATING WELL BOTTOM ZONE

摘要

FIELD: oil and gas production. SUBSTANCE: invention can be used when treating bottom zone of production well or production well converted into injection well. According to invention, casing string is cleaned, distillate is injected into well, and first process pause is performed. Then, 0.5-5% solution of nonionic surfactant in associated Devonian water is injected into well and forced into formation, after which second process pause follows. Additional depression perforation is carried out and casing string is cleaned once more. EFFECT: increased productivity of well.