【摘要】 本文从天然气在地壳上分布的不均衡性、与石油的亲缘关系及深源气存在的证据等引出国外一些学者提出的深源气形成的地质—地球化学模式。他们都认为天然气起源于深部地幔。根据实际资料及实验等方面的研究,一些学者认为石油烃不仅是独立的而且也是独特的天然化合物。天然气—石油与干酪根—煤是典型的天然对映体。这种观点与广为流传的煤成气观点迥然对立。说明石油烃天然化合物的成因问题没有得到最终解决,只有通过实践及实事求是的讨论才能得到统一认识。更多还原

【Abstract】 The geologic-geochemical model of the hypogenic gas formation suggested by some authors abroad is led to by the non homogeneity of the natural gas distribution in the crust, the affinity with petroleum and the evidence of the abyssal origin.Similarly, it is believed that the natural gas originates from the deep mantle.The generating source of oil and natural gas is located in the place with a quite active geochemical activity in terms of the point of geodynamics.There is an quite intense activity in this place, where the deep fracture to the surface is generating and developing. Oil and gas try to flow to the surface along the deep fracture and the oil and gas fields are formed under the convenient lithofacies and structure conditions.The natural gas mainly gathers at the outbelt of fdredeep, the uplifted stretch of the intermontane basin, the declitviy of platforms, and the land mass ( moving down relatively ) in the inter platform basin. In these places the buried depth of the asthenosphere surface is more shallow.This phenomenon correspounds with the chemical thermodynamic genetic theory of natural gas under the conditions of the asthenosphere.In order to prove the principle of the mineral synthetic theory of oil and gas under the conditions of the asthenosphere,the laboratory research has made certain progress by modeling the mantle condition at The Combustible Organic Mineral Geology and The Geochemical Research Institute, the Superhard Material Research Institute and Organic Mineral Chemical Laboratory in the Academy of Sciences of Ukraine ( Russion )U.B.Galbrk believed that the petroleum hydrocarbon was not only an independnet but also an unique natural compound, which differs from other carbonaceous scries ( including kerogen-coal).The whole geochemical history of the typical biogenetic compound ( kerogen-coal ) is different from the two irreversible processes during the epoch of metamorphism, whose final products are. (1) gas products-CH4, CO2, H2O, H2S, NH3 and so on; (2) solid products-kerogen,coal.In fact,the liquid fracture and higher-than-methane hydrocarbon are not produced.The natural gas-petroleum and the kerogen-coal are a typical natural eanatiomorph.Some evidences, not only the geological examples, but also laboratory research, all support this point of view. It is diametrically opposed to the widerspread point of view of coaliferous gas. It indecates that the genetic problem about the natural compound of petroleum hydrocarbon is not solved at all.There still exists a divergent opinion about this problem, which is united only through practice and practical and realistic discussion.The natural sciene can be developed only through free discussion.更多还原