石油与天然气地质 ›› 1998, Vol. 19 ›› Issue (3): 196-204.doi: 10.11743/ogg19980305

• 论文 • 上一篇    下一篇

沉积盆地数值模型的概念、设计及检验

罗晓容   

  1. 中国科学院地质研究所, 北京100029
  • 收稿日期:1998-04-22 出版日期:1998-09-25 发布日期:2012-01-18

NUMERICAL MODEL OF SEDIMENTARY BASIN: CONCEPTION,COMPOSITION AND VERIFICATION

Luo Xiaorong   

  1. Institute of Geology, Chinese Academy of Sciences, Beijing
  • Received:1998-04-22 Online:1998-09-25 Published:2012-01-18

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摘要：

用于油气勘探研究的盆地模型主要包括盆地内沉积埋藏、热演化、流体流动、压实作用、油气生成及烃类运移过程的数值模型。这些数值模型必须具备三个要素:(1)能描述各种地质现象随盆地形成和发展所发生的演化过程;(2)将盆地中的几种主要物理场有机联系在一起;(3)应尽可能地应用各种物理场的基本方程描述各个过程的发生和演化。运用有限元法,在计算机的帮助下,经重复迭代可对上述模型进行数值求解。为保证计算结果的正确性,须对模型进行检验,常用的方法有三种:极值检验、分析检验和对比检验。

关键词: 沉积盆地, 数值模型, 模拟方法, 检验

Abstract:

According to the discussion on numerical model of sedimentary basin,including the conception,the composition and the problenms remained in actual application of the modeling,it is proposed that,for different research objects of different structural grades of the basin,basin modeling must be different.This paper describes a numerical basin model within sedimentary cover of the basin,dealing with the composition of geological model,the derivation of mathematical model and the numerical solution.The main parts of the models include compressive diagenesis,geothermal field,geopressure field and geometrical variation of the basin.The paper also discusses the selection of key parameters,calculaton method and verifying of the models.