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重点讨论了华北下古生界原生油气藏的生油条件及保存条件。根据29条露头剖面及44口井资料,编制了一套生油条件分析图六幅,划出了七个生油层组,圈出了各组有利及较有利生油区,分析了下古生界区域构造发展轮廓,为进一步研究下古生界生油条件奠定基础。 从华北下古生界经历的历次地壳运动性质,结合二次生油理论,讨论了下古生界原生油气藏的保存条件。最后初步指出了华北下古生界原生油气藏的勘探方向。
This paper mainly discusses the oil generation conditions and preservation conditions of the Lower Paleozoic primary reservoirs in North China. According to 29 outcrop sections and 44 well data, a set of six oil production conditions analysis charts were prepared, seven oil-bearing formation groups were identified, and the favorable and more favorable oil generation zones of each group were excavated. The regional tectonic development profile provides the basis for further study of oil production conditions in the Lower Paleozoic. Based on the previous crustal movement experienced by the Lower Paleozoic in North China and the secondary oil generation theory, the preservation conditions of the Lower Paleozoic oil and gas reservoirs are discussed. In the end, we initially pointed out the exploration direction of the Lower Paleozoic primary reservoirs in North China.