钛合金石油管材的研究和应用进展

Research and Application Progress of Ti Alloy Oil Country Tubular Goods

摘要:

综述了国内外钛合金石油管材研究和应用现状，详细介绍了钛合金石油管材的成分、组织及机械性能；论述了钛合金石油管材在完井液或环空保护液、酸化液和生产工况环境中的抗均匀腐蚀、局部腐蚀、冲蚀、腐蚀疲劳及应力腐蚀开裂（SCC）性能；同时介绍了钛合金石油管材制造工艺和应用状况。指出了国内研制开发钛合金石油管材与国外的差距，以及其在国内外高压高温油气田的应用前景和发展方向。

Abstract:

The research and application progress of Ti alloy oil country tubular goods (OCTGs) at home and abroad were reviewed, and the chemical composition, microstructure and mechanical properties of Ti alloy OCTGs were also referred. The resistance to uniform corrosion, local corrosion, erosion, corrosion fatigue and stress corrosion cracking (SCC) of Ti alloy OCTGs in the environments of the completion fluid, the acidizing fluid and the production conditions were discussed. Moreover, the gap in the research and development of the Ti alloy OCTGs between China and foreign countries was pointed out, and the application prospect and the development trend of Ti alloy OCTGs in the well of high pressure and high temperature (HPHT) oil and gas field were also forecasted.