Reliability-Based Scheme Design for Fault-Crossing of X90 Pipeline

Abstract:

While high steel grade X70, X80 pipeline has been widely used in long-distance oil and gas pipeline engineering of China, to further improve steel grade to X90 is an effective way to increase the efficiency of pipeline transportation and reduce construction cost. In this paper, the failure probability of earthquake fault crossing of X90 pipeline has been calculated with the strain-based reliability design method and the design scheme has been adjusted according to sensitivity analysis with influence factors of the failure probability of fault-crossing of X90 pipeline, after that the scheme of fault-crossing of X90 pipeline which meets requirements of pipeline reliability has been figured out. This study has laid a theoretical foundation for the application of X90 pipeline in future construction of pipeline engineering.

• Periodical: Advanced Materials Research (Volumes 1030-1032)
• Pages: 2601-2607
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.1030-1032.2601
• Online since: September 2014
• Authors: Yu Qing Liu*, Zhen Yong Zhang, Kai Wen
• Keywords: Fault, Pipeline, Reliability, scheme, Strain, X90

References

[1] Nessim, M.A. and Zhou, W. 2005. Guidelines for Reliability Based Design and Assessment of Onshore Natural Gas Pipelines. Report Prepared for Gas Research Institute, GRI Contract No. 8565, July.

[2] Construction and Design for Oil and Gas Field and Pipeline Specialty Standardization Committee, GB 50251-2003 Code for Design of Gas Transmission Pipeline Engineering [S] Beijing: China Planning Press (2003).

[3] China Petroleum Pipeline Engineering Corporation, GB 50470-2008, Seismic Code for Oil and Gas Transmission Pipeline Engineering [S] Beijing: China Planning Press (2009).