Cretaceous stratum i s the main gas producing zo ne in Kela a rea.It is important to know clearly the distribution of sand body of Cretaceous stratum in Kela area for exploitation in the future.

• 勘探早期，由于钻井数少、井距大，地质资料的限制,用常规方法建立的储集层砂体骨架模型很难合理地认识地下砂体的分布特征。