| 2007 №05 (06) | 2007 №05 (08) |
The Paton Welding Journal, 2007, #5, 30-35 pages
Main trends in technology for repair of active pressurised main pipelines
V.S. But, O.I. Olejnik
E.O. Paton Electric Welding Institute of the NASU. 11 Kazymyr Malevych Str., 03150, Kyiv, Ukraine.Abstract
Design approach is proposed to development of repair technologies for pressurised main pipelines having different types of defects in their linear part using arc welding. Design-technological schemes of repair of pipelines and criteria for selection of repair methods, depending upon the character and parameters of defects, are given.
Keywords: arc welding, main pipelines, design-technological repair schemes, geometric parameters of defects
References
1. But, V.S., Gretsky, Yu.Ya., Rozgonyuk, V.V. et al. (2001) Validation of new approach to performance of welding works on pressurised pipelines. Naft. i Gazova Promyslovist, 4, 33–39.2. But, V.S., Vasilyuk, V.M., Fedorenko, Yu.T. et al. (2006) Trends in development of repair technologies for main pipelines under service conditions. In: Proc. of Sci.-Pract. Seminar on Reliability Control of Systems of Pipeline Transportation (Kiev, 11 April, 2006), 31–38.
3. Makhnenko, V.I., But, V.S., Velikoivanenko, E.A. et al. (2001) Mathematical modelling of pitting defects in active oil and gas pipelines and development of a numerical method for estimation of permissible parameters of arc welding repair of defects. The Paton Welding J., 11, 2–9.
4. Makhnenko, V.I., But, V.S., Velikoivanenko, E.A. et al. (2003) Estimation of permissible sizes of welds for mounting T-joints and sleeves on active main pipelines. Ibid., 8, 6–11.