地下盐岩储库泄漏事故统计分析及启示Statistical Analysis ofUnderground Salt Rock Gas Storage Leakage Accidents and Enlightenment
刘金森,陈健,陈祥胜,施锡林,刘元玺
摘要(Abstract):
鉴于我国盐岩储库建设暂处于发展上升期,为保障储库在运营过程中的密闭安全特性,调研了国内外近50a内盐岩储库的泄漏事故,并对储库泄漏进行了泄漏原因分析、统计和分类。统计分析结果表明:盐岩储库密闭性影响因素众多,其中井筒套管破损、盖夹层密封性失效和地表装置损坏共占所有事故原因统计的80%。泄漏原因可归纳为地质因素、工程因素、人为失误和交叉因素四个方面,除地质因素以外,余下的泄漏因素均可在设计和运营阶段加以考虑和规避。此外,对于我国普遍存在的层状盐岩储库而言,应重点分析夹层和盖层对储库密闭性的不利影响,避免发生夹层渗漏和盖层被突破失效事故。
关键词(KeyWords): 地下盐岩储库;盐岩;能源存储;泄漏分析;预防处置
基金项目(Foundation): 国家自然科学基金(51874273,51774266);; 广东煤炭地质局科研项目(GDJ2018-01)
作者(Author): 刘金森,陈健,陈祥胜,施锡林,刘元玺
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