The results suggest that the sandstone body was a product of a fluvial environment of a special transitional type.

研究结果表明，该套砂体属于一种特殊过渡类型的河流环境的产物。

youdao

In oil field of China, fluvial and delta facies reservoir are main depositional facies type, and their geological reserve accounting for nearly 80% of total reserve of clastic rock facies.

中国油田河流相与三角洲相储层的地质储量占碎屑岩相总储量的近80%，是主要的沉积相类型。

youdao