VIBROJET WELL TREATMENT IS A TECNOLOGY OF INCREASING DEPTH CLEANING A CRITICAL AREA OF FORMATION U. ZEMTSOV 1 A. GAZAROV and P. OBORONKOV 2 R. SHIRGAZIN 1 ”Kogalym NIPIOIL” Ltd. Department of oil production technology and technique Drouzhba Narodov Str. 15 628481 Kogalym Russia 2 TPP ‘’Langepasneftegas’’ In well completion and oil stimulation practice there is an application for hydroimpulsive methods of bed stimulation on critical area of formation. Among them there are some methods that gained ground. They are as follows: impulse method of hydroimpulsive pumping of well treatment ultrasonic method wave method with pulser application and methods of