dì / zhì / xué / jiā / rèn / wéi / zhè / piàn / yóu / tián / shàng / fāng / de / gài / céng / fēi / cháng / wán / zhěng

地质学家认为，这片油田上方的盖层非常完整。

Geologists believe that the cap rock above this oil field is very intact.