The fine regional capformation also supply the good barrier conditions.
优质区域盖层亦为其油气的储集提供了良好的遮挡与封盖条件；
2
There are fine local cap formations existing in upper and lower Youshashan formation of Jurassic system.
侏罗系，下油砂山组，上油砂山组存在较好的局部盖层。
3
Properties of oil and gas above and below a regional capformation differs greatly. The development of regional formations are dependent on subsidence types of b...