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“含油气系统”概念是石油天然气地质学与系统科学相结合的产物。建议采用“广义的”含油气系统概念，并将其作为石油地质学家从系统科学角度所看到的一种全新的地质实体、研究对象与系统模型的复合体。其内涵是与油气生、排、运、聚、散有关且与周围环境密切联系着的若干相互作用、相互依赖的地质要素和过程（作用）及其描述参数和联系方式的集合体。其外延应包容油气区（或者还有超油气区）、盆地（包括叠合盆地）、凹陷（或在规模上相类似的成藏组合、区带）等３个级（类）别的子系统。其研究方法，应当是定性与定量相结合的系统方法。Ｍａｇｏｏｎ（１９９２）、Ｐｅｒｏｄｏｎ（１９９２）和Ｄｅｍａｉｓｏｎ等（１９９１）的结构图解法、模型类比法和成因分析法，经改进后，可以分别用于３个级别“含油气系统”的油气潜力快速预测、评价。进一步的研究可考虑与定量模拟结合起来，并采用系统动力学的思路与方法
The concept of “petroliferous system” is a product of the combination of petroleum geology and systems science. It is suggested to adopt the concept of “generalized” petroleum system and to use it as a new complex of petroleum geological geology, research object and system model as viewed by systems geosciences. Its connotation is a collection of several interdependent and interdependent geologic elements and processes (functions) and its describing parameters and contact methods that are closely related to the surroundings of the oil and gas generation, platoon, transport, aggregation and dispersion. Its extension should include three subsystems (categories) such as oil and gas zones (or super-oil and gas zones), basins (including superimposed basins), sags (or similar scale assemblages and zones) . The research method should be a systematic method of combining qualitative and quantitative. The structural diagrams, model analogies and genesis analysis methods of Magoon (1992), Perodon (1992) and Demaison et al. (1991) can be used respectively for rapid prediction of oil and gas potentials in three levels of “petroleum system” Evaluation. Further research can be considered in combination with quantitative modeling and using the ideas and methods of system dynamics