安宁盐穴储气库盖层密封性评价

Assessment on the Cap Rock Tightness of the Gas Storehouse of Anning Salt Cavern

盐穴储气库的盖层密封性是影响盐穴储气库密封性重要因素之一,本文利用地质综合分析法从宏观上对储气库盖层的密封性进行了评价,同时通过实验从微观角度研究盖层的密封性(评价参数包括孔隙度、渗透率、突破压力等),结果表明:储气库的盖层密封性较好,符合建设地下盐穴储气库。

The tightness of the cap rock of the gas storehouse of the salt cavern is an important factor that influencing the tightness of gas storehouse.This paper makes assessment to the tightness of the cap rock of the gas storehouse from the macro aspect with the geological comprehensive analysis methods.And meanwhile,this paper studies the tightness of the cap rock from the micro aspect（the assessment parameters include porosity,permeability,breaking pressure and etc.） through the experiment and the results shows that the tightness of the cap rock of gas storehouse is good and meets the requirements of building underground salt cavern gas storehouse.