盐穴地下储气库的建设与运行特征

1. 中国石油勘探开发研究院· 中国石油天然气集团公司油气地下储库工程重点实验室;2. 中国石油西气东输管道公司

盐穴地下储气库;建设;运行;特征

Construction & operation characteristics of salt cavern underground gas storages
RAN Lina1, ZHENG Dewen1, LUO Tianbao2, WANYAN Qiqi1, GOU Yanxia1

1. PetroChina Research Institute of Petroleum Exploration & Development//CNPC Key Laboratory of Oil & Gas Underground Storage Engineering; 2. PetroChina West-East Pipeline Company

salt cavern underground gas storage, construction, operation, characteristics

备注

地下储气库在调峰保供中发挥着不可替代的作用。盐穴地下储气库属于洞穴型储库,在建设方面具有建设周期长、投资高、工艺技术复杂等特点,但其无需达容时间,可边建设边投产,垫底气比例低且可完全回收。盐穴地下储气库具有采气能力大、注采气灵活、天然气耗损率低等运行特征,不仅能够满足常规季节调峰需求,也能满足日、小时调峰及应急调峰需求。通过分析国内外盐穴地下储气库建设运行数据,梳理金坛地下储气库在实际运行中发挥的重要作用,针对盐穴地下储气库功能定位进行思考,为盐穴储气库的进一步优化合理发展提供参考。(图3表3,参[20]

Underground gas storage(UGS)is playing an irreplaceable role in peak shaving and gas supply guarantee. Salt cavern UGS is a kind of cavern-type storage and its construction is characterized by long construction period, high investment and complex engineering technology, but it doesn’t need ramp up time and it can be put into production while being constructed. In addition, its ratio of cushion gas is lower and it can be recovered completely. Its operation is characterized by great gas production capacity, flexible gas injection and production, and low coefficient of gas losses. Salt cavern UGSs can not only satisfy the conventional demand of seasonal peak shaving, but also the demand of daily, hourly and emergency peak shaving. In this paper, the construction and operation data of salt cavern UGSs at home and abroad were analyzed, and the important role of Jintan Underground Gas Storage in the actual operation was described. Then, some thoughts on the function orientation of salt cavern UGSs were put forward. The research results provide a reference for the further optimization and reasonable development of salt cavern UGSs. (3 Figures, 3 Tables, 20 References)