چکیده (انگلیسی):

Investigated regularities and manifestations of the elastic deformations of the polymer flow under conditions are close to that of the real flows of the fire hoses at oilfield territories. The data obtained in this study shows that it is necessary to consider the possible effects of the elastic deformations when solving the problem of drag reduction of the fire suppressing liquid in the pipeline at oilfield territories by injecting the polymer solutions in the boundary layer and for the development of the optimum system of the introduction. The decreased effect in diminution of resistance to liquid flow when feeding polymer solution into boundary layer of a fire-hose is the result of combining deformation effect of longitudinal hydrodynamic field available in a feeding system and molecular-concentration properties of polymer solution. There have been outlined ways of increasing the effectiveness of systems for feeding polymer solutions into fire-hoses, and hence, fire-fighting systems with water, which increase the fire protection degree at oilfield territories and decreases the environment pollution with combustion products and heat.