A method for controlling the development of an inhomogeneous oil reservoir

摘要

FIELD: adjusting heterogeneous layers permeability by means of chemical reagents. SUBSTANCE: method includes consecutive pumping of unleavened water, alkali water solution, hydrochloric aluminum water solution, supplying said components under pressure from water, petroleum extraction through extraction wells. Alkali water solution is supplied together with polydymethyldyalammonium chloride. For supplying hydrochloric aluminum water solution mineralized drainage water is used. Pumping of alkali water solution and hydrochloric aluminum water solution is possible in relationship 1:1. EFFECT: increased petroleum layer productiveness, decreased amount of water in extracted petroleum. 2 cl, 1 dwg, 1 tbl, 3 ex