Gravity drive is effective in the early stages of reservoir development only when there is high relief in the reservoir rock and oil column.

重力驱动仅在储层岩石中存在高闭合度和油柱的情况下在储层开发的早期是有效的。

youdao

With a flat regional structural relief and poor reservoir poroperm characteristics as background, the secondary migration of gas in the region is mainly driven by gas expansion.

在区域构造平缓和储层物性普遍较差的背景下，天然气二次运移以气体膨胀驱动为主。

youdao

An emergency relief valve is arranged on the air reservoir or the wind pipe connected with the air reservoir.

储气罐或连接储气罐的风管还配装有安全阀。

youdao

And following the intersection of the well bore with those relief wells, they will put heavy mud down there to suppress the pressure of the oil coming up from the reservoir, put a cement plug in and effectively do what I would call a bottom kill, as opposed to the top kill, which was not successful a couple of weeks ago.

WHITEHOUSE: Daily Press Briefing