【摘要】 北京外围的下古生界与中、上元古界的原生油气藏与来自石炭-二叠系次生气藏,不论从沉积、构造、生储油层还是保存条件看,深层都具有很大的油气潜力。过去只对深层源自第三系潜山油气藏做了很多工作,也获得了象任丘这样的大油田,但对深层原生油气藏的勘探是很不够的。文中提出了冀北坳陷的党坝向斜、冀南坳陷的鸡泽构造带、沧县隆起及其外围最为有利。这些地区一般都有石炭-二叠系覆盖,构成了奥陶系的重要气源岩与盖层。更多还原

【Abstract】 Gasification of Beijing is a very important problem.However,gas in Tertiary gas reservoirs or in oil reservoirs(associate gas)cannot give an answer to this problem.This can be solved by gas from gas reservoirs in nothern province.From a strategic point of view,lower Paleozoic and Middle to Upper Proterozoic primary oil and gas reservoirs as well as those secondary ones with their oil/gas migrated from Carboniferous and Permi- an have a high potential for oil and gas resources,whether viewed from deposition,struc- ture,oil/gas generation and accumulation as well as their preservation.Much work has done on deeply buried hill reservoir,such as Renqiu,with its oil originated from Ter- tiary.However,little has done on the exploration of deeply buried primary reser- voir.This paper suggests that Dangba syncline in Jibei sag,Jize structural belt in Jinan sag,Cangxian uplift and its neighbourhood are most favorable areas.In these areas,there are generally,Carboniferous and Permian coverage being the important source forma- tions as well as cap formations.更多还原