三维油气成藏动力学建模与软件开发

MODEL CONSTRUCTION AND SOFTWARE DEVELOPMENT OF 3-D HYDROCARBON POOL-FORMING DYNAMICS

根据系统工程学的理论与方法 ,油气成藏动力学模拟的系统工程模型构建思路可概括为 :将动力学模拟与非动力学模拟结合起来 ,用非动力学模拟再造油气生排运聚散过程的物质空间 ;将常规动力学模拟与系统动力学模拟结合起来 ,用系统动力学模拟描述系统整体的非线性过程 ;将数值模拟与人工智能模拟结合起来 ,用人工智能模拟解决油气运聚等局部过程的非线性问题。需要解决的关键技术包括 :三维数字地质体的空间插值与矢量剪切技术 ,盆地构造史、沉降史的三维回剥与平衡技术 ,盆地构造应力场的动态模拟技术 ,多热源多阶段叠加变质作用模拟技术 ,真三维的常规油气生成、排放动力学模拟技术 ,油气运移和聚集的人工智能模拟技术 ,油气成藏的系统动力学模拟技术 ,以及系统动态连接与集成化技术。作者探讨这些理论难题并取得关键技术上的一系列突破 ,初步建立了一个三维油气成藏动力学模拟评价系统 ,并成功地用于实践中去。

According to the theories and methods of system engineering,the constructing train of thought for the system engineering models of hydrocarbon pool forming dynamics simulation can be summarized as follows. 1)By combining dynamics simulation with non dynamics simulation,the material space for the process of hydrocarbon generation,expulsion,migration,accumulation and dissipation can be reconstructed using non dynamics si mulation. 2)By combining conventional dynamics simulation with system dynamics simulation,the non linear course of the whole system can be described using system dynamics simulation. 3)By combining numerical simulation with artificial intelligence simulation,the non linear problems of hydrocarbon migration,accumulation and other local courses can be resolved using artificial intelligence simulation.The key technologies which need to be conquered include the space interpolation and vector cutting technology of 3 D digital geologic bodies,the 3 D back stripping and balancing technology of basin tectonic history and sedimentation history,the dynamic simulation technology of basin tectonic stress field,the simulation technology of mutiple heat source and muti stage superimposed metamorphism,the trae 3 D conventional dynamics simulation technology of hydrocarbon generation and expulsion,the artificial intelligence simulation technology of hydrocarbon migration and accumulation,the system dynamics simulation technology,of hydrocarbon pool formation,and the dynamically linking and integrating technology of the whole ststem.The authors discussed these theoretical difficuties and made a series of breakthroughs in the key technologies.On this basis,a 3 D hydrocarbon pool forming dynamics simulation and evaluation system was established preliminarily and was applied successfully in the practice.