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凝析气田的储量计算是一新课题,对此,国外文献上发表过一些文章。这些文章的主要内容,在参考文献[1]中曾有所介绍。本文基于前人的工作,提出一种计算凝析气田原始储气量的新方法,即在地层压力高于第一露点压力的原始情况下,估算凝析气田地下储气量的方法。所用试采资料也是在井底压力高于上露点压力下取得的,即在地下仍是单相(气相)没有凝析液在井底以外的层内生成的开采条件下取得的。文中扼要地介绍了计算公式并举一例说明。
Condensate gas field reserves calculation is a new topic, this, published a number of articles in foreign literature. The main contents of these articles have been introduced in reference [1]. Based on the work of predecessors, this paper presents a new method for calculating the original gas storage in a condensate gas field, which is to estimate the underground gas storage in a condensate gas field under the condition that the formation pressure is higher than the first dew point pressure. The test data used was also obtained at a well pressure below the dew point pressure, ie, no single condensate was found below the well bottom in the single phase (gas phase). The article briefly introduces the calculation formula and give an example.