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Edition and Publication

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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Application of Lowering Pipeline at Single Side to Long?distance Pipeline Construction in Desert Areas

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Key Words：Oil pipeline；Desert area；Trenching；Pipe lowering construction；Lowering pipe at single side；Construction

Abstract：All of the pipeline segments needed to be replaced of Tarim?鄄Lunnan Oil Pipeline are located in Taklamakan Desert hinterland，the area along the pipeline， consisting of much wind-blown sand， has low bearing capacity，which brings many difficulties for trenching and pipeline lowering construction. Technical personnel have conducted field investigation，demonstration and successful trenching test and decided to adopt the method of lowering pipeline at single side for pipeline installation construction. The construction process includes construction preparation，pipeline centerline determination，pipeline position adjustment，coating leakage inspection，test section trenching，test section checking，trenching and pipeline burial depth checking. The method is adopted to successfully settle the difficulties for trenching and pipeline lowering construction in desert areas and the method has such advantages as simple construction process，low costs and risk，quick progress and good operationality.