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Application filed by Івано-Франківський інститут нафти і газу, Ивано-Франковский Институт Нефти И ГазаfiledCriticalІвано-Франківський інститут нафти і газу
Priority to UA4748711ApriorityCriticalpatent/UA16838A1/en
Publication of UA16838A1publicationCriticalpatent/UA16838A1/en
The invention relates to oil producing industry. A method includes pumping carbamide, sodium nitrite and acid into formation. As acid nitric acid is used in inactive form as complex thereof with carbamide, at that the complex is obtained by preliminary mixing nitric acid and carbamide on surface.
UA4748711A1989-10-171989-10-17Method for thermo-chemical treatment of formation
UA16838A1
(en)