oil ring是什么意思

用法例句

35m tons is an anticline gas cap reservoir where con-densate gas accumulated in the structural high of the anticline and an oil rim with an area of 5.

宝浪油田宝中区块为长条型背斜构造气顶油藏,其背斜高部为凝析气,中部发育油环,油环面积5。