Study On Evaluation Method Of Underground Salt Cavern Gas Storage

In recent years,with the further development of our city and the natural gas related to large-scale infrastructure construction,natural gas consumption will continue to grow rapidly,at the same time,brings great challenge to seasonal fluctuations in the demand for natural gas to China's natural gas supply security.In this context,it is very important to speed up the strategic reserves of natural gas and the gas storage with peak regulation.As an important type of underground gas storage,salt cavern gas storage plays an important role in the supply of natural gas in china.This paper introduces the research efficiency evaluation method of cavity made of salt cavern gas storage of the background,significance and the domestic and foreign salt cavern gas storage technology status,and points out the existing problems of economic evaluation;secondly,from the geological conditions,made the two cavity production conditions,analyzes the influencing factors of salt cavern gas storage cavern;then put forward the basic idea of cavity efficiency optimization and the ultimate goal,established the cavity efficiency evaluation criteria,influence factors and the cavity according to the basic requirements of the gas storage construction,put forward the evaluation index of cavity building efficiency,system dynamics based on the calculation formula of the evaluation index is given;finally,combined with the characteristics of cavity building efficiency evaluation index and evaluation method,AHP and grey matter element analysis method of two kinds of evaluation methods of salt cavern gas storage cavity building efficiency,and through The evaluation of the method is verified by 3 cavity schemes.