PSI - Issue 22

Available online at www.sciencedirect.com Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000 Available online at www.sciencedirect.com ScienceDirect Structural Integrity Procedia 00 (2019) 000 – 000

www.elsevier.com/locate/procedia www.elsevier.com/locate/procedia

ScienceDirect

Procedia Structural Integrity 22 (2019) 219–228

© 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers Abstract The 2 nd West to East Gas Pipeline ( WEGP) is the first major pipeline project in China importing abroad natural gas and also the longest and largest gas transmission pipeline in the world with gas supply of Middle Asian natural gas and adjusting gas supply of domestic gas from Tarim Basin and Ordos Basin. Its total length is 9 000 kilometers, in which the total length of artery from Khorgos to Guangzhou is 4 900 kilometers. Its design throughput is 30 billion cubic meters per year. Designed maximum operation pressure is 12 MPa, largest diameter of pipe is 1219mm and highest steel grade is X80. To ensure the long-term safety and reliability in operation, fracture control program has been proposed through systematic research, including crack initiation control, brittle fracture control and ductile long-running fracture control. The requirement of arrest toughness of the 2 nd WEGP had been studied on the basis of pipe full-scale burst test data base in the world, Battelle Two Curve (BTC) method and GasDecom software. Full scale burst tests of X80 high-pressure gas pipeline had been successfully performed based on previous research results. The fracture control program was set up based on different fracture criteria and the principle of both safety and economy. The crack arrest ability of X80 spiral submerged arc welded (SSAW) steel pipe was firstly verified and a new correct factor of arrest toughness prediction was obtained. Results presented that the crack arrest ability of SSAW pipe is better than longitudinal submerged arc welded (LSAW) pipe. It lays a solid foundation for the safe operation of the X80 pipeline after construction and completion. © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers First International Symposium on Risk and Safety of Complex Structures and Components Fracture Control of the 2 nd West to East Gas Pipeline in China Yaorong Feng * , Chunyong Huo, Chuanjing Zhuang, Lingkang Ji, Yang Li, Helin Li State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi ’ an, Shaanxi 710077, China Abstract The 2 nd West t Ea Gas Pip line ( WEGP) i the f rst major pipeline project in China importing abro d lso he longest and largest gas transmission pipeline in the world with ga supply of Middle Asian natu al gas and adjusting gas supply of domestic gas f om Tarim Basin and Ordos Basin. Its total length is 9 000 kilometers, in whi h the total length of art ry from Khorgos to Gua gzhou is 4 900 kilometer . Its d sign throughput is 30 billion cubic m ters p r year. Designed maximum operation pressure is 12 MPa, larges diameter of pipe is 1219m and highest steel grade is X80. To ensure the long-term safety a d rel ability in operation, fracture control program has bee proposed through systematic research, including crack initia ion control, brittle fracture control and ductile long-r nning fracture control. Th requirement of rr st toughness of the 2 nd WEGP h d been studied on the basis of pipe full- cale burst test data bas in the world, Battelle Two C rv (BTC) method and GasDecom softwa . Full scale burst tests of X80 high-pressure ga pipeline had been successfully performed based on r vious research results. The fracture control program was set up based on diff rent fracture criteria and the principle of both sa ety economy. The rack arrest ability of X80 spiral submerged arc w lded (SSAW) steel pipe was fi stly verified and a new correct factor of arres toughness prediction as obtained. Results presented that the crack arrest ability of SSAW pipe is better than longi udinal s bmerged arc welded (LSAW) pipe. It lays a solid foundation for the safe operation of the X80 pipeline after construction and completion. © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers First International Symposium on Risk and Safety of Complex Structures and Components Fracture Control of the 2 nd West to East Gas Pipeline in China Yaorong Feng * , Chunyong Huo, Chuanjing Zhuang, Lingkang Ji, Yang Li, Helin Li State Key Laboratory for Performance and Structure Safety of Petroleum Tubular Goods and Equipment Materials, CNPC Tubular Goods Research Institute, Xi ’ an, Shaanxi 710077, China

* Corresponding author. Tel.: +86-29-81887699; Fax: +86-29-81887699. E-mail address: fengyr@cnpc.com.cn * Corresponding author. Tel.: +86-29-81887699; Fax: +86-29-81887699. E-mail address: fengyr@cnpc.com.cn

2452-3216 © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review statement: Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers 2452-3216 © 2019 The Authors. Published by Elsevier B.V.This is an open access article under the CC BY-NC-ND license (http://creativecom ons.org/licenses/by-nc-nd/4.0/) Peer-review statement: Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers

2452-3216 © 2019 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/) Peer-review under responsibility of the First International Symposium on Risk and Safety of Complex Structures and Components organizers 10.1016/j.prostr.2020.01.028