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结晶岩类不仅与地质构造、沉积岩等关系密切,而且由于它可构成油气圈闭,甚至成为油、气储集层。结晶岩类的储集空间类型与砂岩、碳酸岩相比较,同样有各种类型的裂隙、孔孔;,唯一的区别是只有次生孔隙,而无原生孔隙。在结晶岩类中勘探油气资源,除周围应具有充足的生油岩系和良好的运移圈闭条件外,构造裂隙发育,潜山的高部位可成为有利的油气勘探区。
Crystalline rocks are not only closely related to the geological structure and sedimentary rocks, but also become oil and gas reservoirs because they can form hydrocarbon traps. Compared with sandstone and carbonate rock, there are also various types of fractures and pores in crystalline rocks. The only difference is that there are only secondary pores and no primary pores. In oil and gas resources exploration in crystalline rocks, except for the surrounding oil-bearing rocks should have sufficient conditions and good migration trap conditions, the development of structural fractures, buried hill high areas can be favorable oil and gas exploration area.