FIELD: oil industry. SUBSTANCE: process is related to technique of hydraulic stratum fracture and gravel packing of well in underground formation. Process includes formation of perforations in cased shaft of well bordering on opened interval and positioning of working string in shaft of well. Working string includes in this case filter with gravel packing lying close to opened interval with formation of hole clearance in opened interval when working string is placed into shaft of well. Then process of pumping of clear fluid into above- mentioned hole clearance of opened interval and from it through perforations into stratum takes place to force out by that any plugging material out of perforations so that they become penetrable for flow, stopping pumping of clear fluid and pumping of suspension carrying particles into hole clearance of opened interval to feed particles through alternative ways of flow to levels inside opened interval for precipitation of particles by that in perforations and in hole clearance till mentioned perforations and hole clearance of opened interval are filled with particles. EFFECT: creation of conditions for more effective flow of fluid from formation through perforations in shaft of well. 7 cl, 2 dwg
