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论述了油气形成的地球动力学模式,包括俯冲—仰冲地球动力成烃方式、裂谷成因地球动力成烃方式和负压地球动力成烃方式,认为依据岩石圈的演化进程,油气形成是一个强度不同和周期性重复的过程,地球内部的地球动力方式包括俯冲作用和裂谷作用首先是油气形成的决定性因素。阐述了油气形成的地球动力学模式的理论和实践意义,认为该模式在地球内部油气地质区划、找油找气目标选择和油气成因等方面是对传统油气地质学基本理论的重要修正,并认为运用该模式在勘查实践上可以找到新的油气目标。同时运用油气形成的地球动力学观点介绍了对全球碳循环的新解释。
This paper discusses the geodynamic model of oil and gas formation, including the mode of hydrocarbon generation from subduction and upwelling geodynamics, the geodynamic hydrocarbon generation mode of rift origin and the dynamic hydrocarbon generation mode of negative pressure. According to the evolution of lithosphere, hydrocarbon formation is a Different intensities and periodic repetitions, the Earth’s interior geodynamics including subduction and rifting are, above all, the decisive factors in oil and gas formation. The paper expounds the theoretical and practical significance of the geodynamics model of oil and gas formation. It is considered that this model is an important amendment to the basic theory of traditional petroleum geology in terms of the geochemical zoning of the Earth’s interior, the target selection of oil-finding gas, and the genesis of hydrocarbon. The use of this model can be found in exploration practice of new oil and gas targets. At the same time, a new interpretation of the global carbon cycle is introduced by using the viewpoints of geodynamics formed by hydrocarbons.