在天然气开发生产中,腐蚀引起的破坏事故较多.破坏往往是由于零件、设备内部预存的冶金、制造、安装隐患,在适当的外界环境作用下,引起零件的早期失效.在四川油气田中常见的构件失效方式以硫化物应力开裂(SSC)破坏形式为最普遍.多年来,为防止SSC破坏做了很多工作,但由于新工艺,新材料的采用,新气田的开发及技术管理上的漏洞,SSC还常常有所发生. In natural gas development and production, corrosion damage caused by more damage is often due to parts, pre-stored equipment within the metallurgical, manufacturing, installation of hidden dangers, under the appropriate external environment, causing the early failure of parts in Sichuan oil and gas fields are common Of the member failure modes are most prevalent in the form of sulfide stress cracking (SSC) failure.Many efforts have been made to prevent SSC destruction over the years, but due to new processes, introduction of new materials, development of new gas fields, and technical management loopholes SSC often happens.