短语词组短语regenerated oil gas pool 再生烃油气藏oil gas pool types 油气藏类型oil gas pool forming 油气成藏oil gas pool distribution 油气藏分布oil gas pool 岩油气藏oil -pool 中油藏oil l pool 油池;油藏oil gas pool evaluation 油气藏评价oil separation pool 隔油池 返回 oil pool