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Edition and Publication:
< Natural Gas and Oil > Editorial Department
Hosted by:
China Petroleum Engineering & Construction Corporation Southwest Company
Authorized by:
China Petroleum Engineering & Construction Corporation
Co-hosted by:
Overseas Research Center of Research Institute of Petroleum Exploration and Development
Editor in Chief:
Du Tonglin
Vice Editor in Chief:
Tang Xiaoyong,Pu Liming
Address:
No.6, Shenghua Road, High-tech District, Chengdu, Sichuan, China
Postal Code:
610041
Tel:
028-86014709
028-86014500
Email:
cnpc-ngo@cnpc.com.cn
Issue:ISSN 1006-5539
CN 51-1183/TE

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The Installation and Quality Control of Cold Shoe

Author of the article:Ma Zhijie, Yang Qing, Guo Wei

Author's Workplace：1.PetroChina No.6 Gas Construction Company; 2.Chongqing Jianfeng Industrial Group Co., Ltd,2.China Petroleum Pipeline Bureau Engineering Co.,Ltd. Tianjin Company

Key Words：Cold shoe; Polyurethane; Secondary installation; Quality control

Abstract：ICHTHYS module belonged to the onshore LNG project. The length of the cryogenic medium pipeline was 7500 m. Pipe cold insulation had most important significance to LNG system in safety and economy. High density polyurethane foam cold shoe product was used to improve pipeline cold process and promote comprehensive performance. Cold shoe was a key support of pipeline in ICHTHYS module.This paper illustrated the cold shoe in the aspects of hoisting, pre-loaded inspection and assembly control according to construction practice. It mainly involved technical management and quality control standards, requirements, specifications and application. The results showed that cold shoe support not only have a guiding role, but also prevent pipeline from icing in a state of cryogenic operation compared with the traditional cold insulation. It guaranteed effective running of LNG pipeline and promote stability and reduce cold loss.