Methods of increasing efficiency of construction, service, and repair of oil and gas equipment and transmission pipelines using adaptive pulsed welding and surfacing technologies
Specific features of the service of oil and gas equipment and large distances of this equipment from basic repair plans require the application of universal mobile means of repair which should usually work in the absence of stationary electrical mains. It is difficult to solve all technological prob...
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| Published in: | Welding international Vol. 15; no. 10; pp. 821 - 826 |
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| Main Authors: | , , , , , , , |
| Format: | Journal Article |
| Language: | English |
| Published: |
Cambridge
Taylor & Francis Group
01-01-2001
Abington |
| Online Access: | Get full text |
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| Summary: | Specific features of the service of oil and gas equipment and large distances of this equipment from basic repair plans require the application of universal mobile means of repair which should usually work in the absence of stationary electrical mains. It is difficult to solve all technological problems using conventional methods of welding. It is necessary to ensure the regulation of the depth of penetration, welding in wider gaps and in different special positions, joining metals and alloys of dissimilar chemical composition, decreasing the degree of splashing of electrode metal, increasing the stability of arc ignition and arcing. The solution of these problems can be achieved efficiently through development of new pulsed technological processes and the means of repair and assembling transmission pipelines and oil industrial equipment. The Laboratory of Pulsed Technologies of Welding and Surfacing of the Institute of Physics of Strength and Materials Science (IPSMS) has accumulated a large amount of practical and theoretical experience with the installation and repair of transmission and processing pipelines and restoration and hardening of rapidly wearing components of oil and gas pipelines and containers. The proposed approach is based, on one hand, on the expansion of the possibilities of practical application of the conventional methods of arc, plasma and electroslag welding and surfacing by means of pulsed changes of the energy parameters of the process. On the other hand, it is based on application of new surfacing materials and methods of deposition. Several examples of the realisation of these approaches are discussed below. (Materials noted: steels.) |
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| Bibliography: | ObjectType-Article-2 SourceType-Scholarly Journals-1 ObjectType-Feature-1 content type line 23 |
| ISSN: | 0950-7116 1754-2138 |
| DOI: | 10.1080/09507110109549449 |