Applied Research on Field Joint Technology of 3LPP Coating
Normally the maximum continuous in-service operating temperature of 3-layer polyethylene (3LPE) coating is not more than 70 ° C.In order to solve the problem of pipeline coating under temperatures higher than 80 ° C,especially for crude oil pipeline,a 3-layer polypropylene (3LPP) coating structure has been developed and applied in practice both domestically and abroad.However,at present time only one form of field joint coating based on polypropylene shrinkable tape is widely adopted for 3LPP coating.This paper will introduce the pioneering work of a new field joint technology based on solvent-free epoxy,viscoelastic and PE heat shrinkable tapes.Also discussed are the selection of new filed joint coating materials,the establishment and testing of the filed joint coating overall performance,and the application of this new field joint technology on the Chad crude oil pipeline project.
Field Joint Coating 3LPP Coating Applied research
Ansheng Zheng Yuzhao Liao Liang Gong Hongqiang Dou Benge Zhang Wei Yang Jianjun Li Mingzhen Yan
Mater, China Petroleum Pipeline Engineering Corporation, No.146, Heping Road, Langfang City, Hebei P Bachelor, China Petroleum Pipeline Engineering Corporation, No.146, Heping Road, Langfang City, Hebe
国际会议
北京
英文
120-131
2012-10-14（万方平台首次上网日期，不代表论文的发表时间）