Abstract: From viewpoint of systematology and complexity theory, the petroleum system is an open complex dynamic one. The system is characterized by the overall function greater than the sum of partial functions, diversity and indeterminacy of its physical makeup, diversity of structure and reservoir types, diversity and relevancy of reservoir formation processes, special stages, non-linearity and dynamics of its evolution, and the multiple disciplines involved in it. It is also an open and dissipative system and has the features of self-organization and orderliness of hydrocarbon distribution. The study of complex system calls for new methodology. The integrated modeling method, which combines the scientific theory,expert system and computation technology as a whole,is an important way to understand the complexity of petroleum system. Its scientific thinking embodies the four unities of opposites including qualitative and quantitative, static and dynamic, reductionism and holism, deterrninacy and randomness. Five development trends of the modeling technique for petroleum system are described in this paper.

Key words: svstematologv, complexity, methodology, petroleum system, numerical modeling

摘要： 从系统学和复杂性科学上分析,含油气系统是一个开放的复杂动力系统。其主要特点是:整体功能大于局部功能之和;物质组成的多样性和不确定性;系统结构和油气藏类型的多样性;成藏过程和成藏作用的多样性、关联性;系统演化的阶段性、非线性、动态性;系统的开放性、耗散性;系统涉及学科的多样性;系统的自组织性和油气分布的有序性。研究复杂系统需要新的方法论,以含油气系统模拟为核心的集科学理论、专家系统和计算技术为一体的综合集成方法是认识含油气系统复杂性的重要手段,其科学思维体现了定性与定量的统一、静态与动态的统一、还原论与整体论的统一、确定性与随机性的统一。文中阐述了含油气系统模拟技术的5个发展趋势。

关键词: 系统论, 复杂性, 方法论, 含油气系统, 数值模拟