油气系统动态数值模拟研究(一)——技术思路与软件流程  

Dynamic numerical modelling of petroleum system(Ⅰ)—Techniques and software system.

作　　者：张庆春[1] 石广仁[1] 米石云[1] 郭秋麟[1] 杨秋琳[1] 

机构地区：[1]中国石油勘探开发研究院

出　　处：《石油勘探与开发》2001年第1期39-42,47,共5页Petroleum Exploration and Development

摘　　要：油气系统是最适于进行盆地模拟评价的油气地质单元 ,盆地模拟的特点体现了油气系统的认识论。油气系统分析模拟的内容应包括 :①静态地质要素研究 ;②油气系统动态地质作用(可以通过地史、热史、生烃史、排烃史、运移聚集史模拟再现 )研究 ;③油气系统的关键时刻与事件组合关系研究。盆地模拟已形成了系统化、模型化、定量化的动态模拟软件 ,用盆地模拟技术实现油气系统动态数值模拟是现实可行的捷径。在盆地综合模拟系统基础上 ,按照油气系统的研究内容和成图表达方式 ,建立了油气系统动态分析模拟软件系统 ,具有进行四方面分析模拟的功能 :①背景研究 ,利用平衡剖面、层序地层模拟以及构造热模拟等方法 ,综合研究油气系统的背景、单个油气系统静态地质要素等 ;②动态地质作用模拟研究 ,研究油气系统的地史、热史、生烃史、排烃史、运聚史过程 ;③关键时刻与事件组合关系研究 ;④油气资源量估算与有利目标评价。图 2参Petroleum system can be viewed as the basic geologic unit most suitable for modelling and evaluation of the basin. The features of the basin modelling reflect the theory of knowledge on petroleum system. The modelling and analysis for petroleum system comprises 3 aspects: ①static geologic factors; ②geologic function of petroleum system (it can be represented by modeling geologic history, geologic thermal history, hydrocarbon generation history, hydrocarbon expulsion history,migration and accumulation history of hydrocarbon); and ③ the relationship between the essential elements and processes by creating the events chart. Seeing that basin modelling has made considerable progress in the quantification of petroleum geology, it is not only a shortcut but also doable utilizing basin modelling techniques to realize the dynamic modelling for petroleum system. In this paper, a large modelling software system DYMAPS, Dynamic Modelling Analysis of Petroleum System, is presented. DYMAPS is developed on the basis of BASIMS, Basin Integrated Modeling System. The system consists of 4 parts: Pre processing, Main modelling programs, Post processing and Integrated evaluation. Using DYMAPS users can carry out four kinds of evaluations: (1) Background study, to study the formation background and all essential elements of a petroleum system by means of balanced cross section modelling, sequence stratigraphic modelling, and thermal tectonic modelling; (2) Dynamic modelling for geological processes, to rebuild the 5 histories of a petroleum system, such as geological, thermal, hydrocarbon generation, expulsion, and accumulation histories; (3) Establishment of the relationship between the essential elements and processes by creating the events chart;and (4) Doing resource assessments and prospect evaluation.

关 键 词：沉积盆地 油气系统 动态数值模拟 盆地模拟 

分 类 号：TE319[石油与天然气工程—油气田开发工程]