shale reservoir

There are mutual samdwich rock of Cambrian limestone and shale in Pan-shi reservoir's to piloting water tunnel and flooding water tunnel, In which the shale is decisive to the tunnel stability.

盘石水库泄洪洞、导流洞所涉及的岩体为寒武系下统灰、页岩互层层状岩体。其中页岩对洞室的稳定起决定作用。

The reservoir Sa-2 in CX area is a thin sand-shale interbed with buried depth from 2000m to 2700m, and the sandstone velocities are larger than the shale velocities.

CX地区按二段储层为砂泥岩薄互层，埋深在2000～2700m之间，且砂岩速度大于泥岩速度。

The exploration for shale fracture oil and reservoir in Dongpu Depression is still in preliminary stage.

东濮凹陷泥岩裂缝油气藏还处在勘探初级阶段,泥岩裂缝油气藏一般属自生自储型.