地下储气库设计技术及其应用

The Application of Design Technique of Underground Gas Storage in Dazhang- tuo Condensate Gas Reservoir

根据地下储气库必须具备气体“注得进、采得出、存得住”以及短期高产、高低压往复变化、长期使用的特点,介绍了地下储气库设计中涉及到的6项主要技术,使用这些技术,成功地设计了工作气量为6×10~8m^3,日调峰气量为500×10~4m^3的大张坨地下储气库运行方案。在2001年第一个注采运行周期中,该储气库全面达到了方案设计指标。

On the basis of the principle of 'injection production and storage' in underground gas storage,the underground gas storage must have the ability in high production in a short period,standing sudden and re-peatable change under low pressure and running in a very long term. The six major techniques involved in the design of underground gas storage are introduced. With these techniques ,Dazhangtuo underground gas storage,with running program of a working gas volume of 6×108 m3 and a daily peak shaving volume of 500×104 m3 ,is successfully designed. During the first injection-production running circle in 2001, the gas storage reached all of the designed targets.