METHOD OF RESTORATION AND INSULATION OF PIPELINE

摘要

FIELD: methods of multilayer pipes production used for protection of new delivery pipelines and restoration of old delivery pipelines using foamed cement for plugging-back of interpipe space. SUBSTANCE: usage of foamed cement allows to increase tolerable length of plugging-back area approximately by two fold and provides uniform filling of interpipe space. Usage of cement is decreased by 1.5 - 2 fold as compared with usage of cement during realization of known methods. EFFECT: significantly decreased usage of cement.