STUDY ON HYPERBARIC WELDING OF UNDERWATER PIPELINE

摘要：

Air diving are widely used in many shallow water areas, if applicable welding technology adaptive to such a condition developed, then operation cost of offshore structure repairs can be largely saved. In order to meet such a special requirement, an automatic GTAW welding process under high air pressures was researched. Firstly, the hyperbaric welding test chamber was designed and constructed in laboratory, and the welding machine was manufactured. Secondly, experiments under 1-7 bar air pressures were studied including linear welds and pipe butt welds, and high weld quality was obtained. Lastly, the hyperbaric welding sea-trial was carried out, and perfect 5G girth weld of sub-sea pipelines was produced.

作者: Canfeng Zhou Xiangdong Jiao Long Xue Jiaqing Chen Xiaoming Fang

作者单位: Beijing Institute of Petro-chemical Technology Beijing,China CNOOC Gas & Power,Ltd Beijing,China

会议类型: 国际会议

会议名称: The 3rd World Conference on Safety of Oil and Gas Industry(第三届世界石油天然气工业安全会议 WCOGI 2010)

会议地点: 北京

会议语种:英文

页码: 717-722

在线出版日期: 2010-09-27（万方平台首次上网日期，不代表论文的发表时间）