国内外盐穴储气库发展概况及趋势

Development and Trend of Salt-Cavern Gas Storage in Domestic and Abroad

盐穴储气库采用溶盐采矿的方式在地下盐层中建造腔体储存天然气,因运行方式的特殊使其具有工作气比例高、日注采量大以及可回收全部垫底气的特点。盐穴储气库与天然气运输线路配合可以进行季节调峰、应急调峰,同时可以满足贸易需求。截至2020年初,世界范围内共有14个国家投入运行108座盐穴储气库,工作气量323亿立方米。文章主要分析了欧洲及美国盐穴储气库建设及技术现状,同时归纳总结了我国盐穴建库现状及特色技术,中外结合为我国盐穴储气库发展提供借鉴作用。

A cavity is built to storage the natural gas in the underground salt horizon by a soluble salt mining way in the salt-cavern gas storage,which has the characteristics of the high proportion of working gas,large amount of daily injection and production volume,and recovery of all bottom gas because of its special mode of operation.The seasonal peak adjustment and emergency peak adjustment can be performed by matching the salt-cavern gas storage with the natural gas transportation line,and the trade demand can be met at the same time.By the beginning of 2020,a total of 108 salt-cavern gas storage with a working gas capacity of 32.3 billion cubic meters have been put into operation in the 14 countries worldwide.The construction and technology status of salt-cavern gas storage in Europe and the United States have been mainly analyzed by this paper,the construction status and characteristic technologies of salt-cavern gas storage in China have been summarized at the same time,and a reference is provided for the development of salt-cavern gas storage in China by combining the Chinese and foreign countries.