The work described in this paper was completed to assess the expected performance of various repair sleeve configurations on an NPS 30, Grade X70 pipeline. A total of ten sleeve variations were studied, and these included sleeve-on-pipe, sleeve-over-collar, and sleeve-over-double collar configurations. The comparisons were based on the stress results of axisymmetric finite element modeling of the sleeve geometries, and included examining sleeves with different thickness, models with and without a gap between the sleeve and the pipe, and cases in which the annulus between the sleeves and pipe were either pressurized or not pressurized. Complementary tasks involved with this work included the specification of recommended epoxy materials and steel grades for reinforcing sleeves. The results of the analyses are presented in terms of contour plots of stress at the maximum operating pressure of the pipe, showing the general stress distribution and indicating areas of stress concentration. This study demonstrates how the loads vary amongst the different sleeve types, and shows how variations in geometry and loading conditions between models affect the operating stresses.
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2006 International Pipeline Conference
September 25–29, 2006
Calgary, Alberta, Canada
Conference Sponsors:
- Pipeline Division
ISBN:
0-7918-4261-4
PROCEEDINGS PAPER
Pressure-Containing Sleeve Alternatives Available to Purchase
Robert B. Lazor,
Robert B. Lazor
BMT Fleet Technology Limited
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Julian Florez,
Julian Florez
Oleoducto Central South America
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Carlos Nieves
Carlos Nieves
Oleoducto Central South America
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Robert B. Lazor
BMT Fleet Technology Limited
Brock Bolton
BMT Fleet Technology Limited
Julian Florez
Oleoducto Central South America
Carlos Nieves
Oleoducto Central South America
Paper No:
IPC2006-10419, pp. 771-778; 8 pages
Published Online:
October 2, 2008
Citation
Lazor, RB, Bolton, B, Florez, J, & Nieves, C. "Pressure-Containing Sleeve Alternatives." Proceedings of the 2006 International Pipeline Conference. Volume 1: Project Management; Design and Construction; Environmental Issues; GIS/Database Development; Innovative Projects and Emerging Issues; Operations and Maintenance; Pipelining in Northern Environments; Standards and Regulations. Calgary, Alberta, Canada. September 25–29, 2006. pp. 771-778. ASME. https://doi.org/10.1115/IPC2006-10419
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