METHOD FOR TREATMENT OF BOTTOM-HOLE ZONE OF WELL Russian patent published in 2000 - IPC

FIELD: oil production industry. SUBSTANCE: method can be used in intensification and insulation operations in wells. According to method, undertaken are interval injections of appropriate treating reagents into bottom-hole zone of well. Prior to injection of reagents, analyzed are geological characteristics of productive bed in well as to permeability of intervals. Found is width of interval with homogeneous geological properties. Assigned is width of interval as to permeability equal to 0.8 m. Reagents are successively injected into assigned intervals. At injection of reagents into adjacent intervals, reagent injection pressure is reduced for treatment. Application of aforesaid method improves efficiency of treating bottom-hole zone of well. EFFECT: higher efficiency.