Details
| Original language | English |
|---|---|
| Article number | 100109 |
| Number of pages | 12 |
| Journal | Journal of Advanced Joining Processes |
| Volume | 5 |
| Early online date | 14 Apr 2022 |
| Publication status | Published - Jun 2022 |
Abstract
In the field of deep geothermal energy, the mono-tube design will be increasingly used in the future, as significant cost savings can be expected in the production of boreholes up to depths of 6000 m. The previously used bolting of the pipe lengths by means of sleeves contributes significantly to the construction costs. In addition, there is an increased risk of failure for the sleeve bolting, especially if different materials have to be used in different layers for the purpose of increasing the corrosion resistance. Magnetically Impelled Arc Butt Welding (MIAB) was used for direct welding of pipe segments with complete elimination of socket bolting. In the process, the casing material (L80 Type 1), which is a cost-effective standard material, and a corrosion-resistant duplex steel (1.4462) were hybrid welded. The results show excellent properties both in terms of mechanical properties and corrosion resistance. It is shown that the advantages of the MIAB process in joining these different materials can successfully overcome the metallurgical challenges. This new approach for the production of borehole liners can contribute significantly to cost reduction in the construction of geothermal boreholes.
Keywords
- Borehole casing, Geothermal wells, Hybrid joining, Magnetically impelled arc butt welding (MIAB), Tube welding
ASJC Scopus subject areas
- Chemical Engineering(all)
- Chemical Engineering (miscellaneous)
- Engineering(all)
- Mechanical Engineering
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Engineering (miscellaneous)
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In: Journal of Advanced Joining Processes, Vol. 5, 100109, 06.2022.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Investigation of the mechanical properties and corrosion behaviour of hybrid L 80 Type 1 and duplex steel joints produced by magnetically impelled arc butt welding
AU - Hassel, Thomas
AU - Maier, Hans Jürgen
AU - Alkhimenko, Alexey
AU - Davydov, Artem
AU - Shaposhnikov, Nikita
AU - Turichin, Gleb
AU - Klimova, Olga
N1 - Funding Information: The research was supported on the German side within the framework of the Lower Saxony Research Network "Geothermal Energy and High-Performance Drilling Technology" (GeBo) funded by the Lower Saxony Ministry of Science and Culture (project no. ZN2481GeBoW5 and ZN2481GeBoW6 ) and from the Russian side by the Ministry of Science and Higher Education of the Russian Federation as part of World-class Research center program: Advanced Digital Technologies (contract No. 075–15–2020–934 dated on 17.11.2020)
PY - 2022/6
Y1 - 2022/6
N2 - In the field of deep geothermal energy, the mono-tube design will be increasingly used in the future, as significant cost savings can be expected in the production of boreholes up to depths of 6000 m. The previously used bolting of the pipe lengths by means of sleeves contributes significantly to the construction costs. In addition, there is an increased risk of failure for the sleeve bolting, especially if different materials have to be used in different layers for the purpose of increasing the corrosion resistance. Magnetically Impelled Arc Butt Welding (MIAB) was used for direct welding of pipe segments with complete elimination of socket bolting. In the process, the casing material (L80 Type 1), which is a cost-effective standard material, and a corrosion-resistant duplex steel (1.4462) were hybrid welded. The results show excellent properties both in terms of mechanical properties and corrosion resistance. It is shown that the advantages of the MIAB process in joining these different materials can successfully overcome the metallurgical challenges. This new approach for the production of borehole liners can contribute significantly to cost reduction in the construction of geothermal boreholes.
AB - In the field of deep geothermal energy, the mono-tube design will be increasingly used in the future, as significant cost savings can be expected in the production of boreholes up to depths of 6000 m. The previously used bolting of the pipe lengths by means of sleeves contributes significantly to the construction costs. In addition, there is an increased risk of failure for the sleeve bolting, especially if different materials have to be used in different layers for the purpose of increasing the corrosion resistance. Magnetically Impelled Arc Butt Welding (MIAB) was used for direct welding of pipe segments with complete elimination of socket bolting. In the process, the casing material (L80 Type 1), which is a cost-effective standard material, and a corrosion-resistant duplex steel (1.4462) were hybrid welded. The results show excellent properties both in terms of mechanical properties and corrosion resistance. It is shown that the advantages of the MIAB process in joining these different materials can successfully overcome the metallurgical challenges. This new approach for the production of borehole liners can contribute significantly to cost reduction in the construction of geothermal boreholes.
KW - Borehole casing
KW - Geothermal wells
KW - Hybrid joining
KW - Magnetically impelled arc butt welding (MIAB)
KW - Tube welding
UR - http://www.scopus.com/inward/record.url?scp=85129621257&partnerID=8YFLogxK
U2 - 10.1016/j.jajp.2022.100109
DO - 10.1016/j.jajp.2022.100109
M3 - Article
AN - SCOPUS:85129621257
VL - 5
JO - Journal of Advanced Joining Processes
JF - Journal of Advanced Joining Processes
SN - 2666-3309
M1 - 100109
ER -