摘要
数值模拟技术是对储层构造裂缝进行定量预测及确定构造裂缝空间分布的一种有效方法，文中给出了构造裂缝定量预测的数值模拟技术的基本原理和实施方法，该项技术是根据构造变形反演研究区域的边界条件及地质模型用有限元方法进行正演计算，确定出研究区的应力场，再结合岩石破裂准则确定裂缝的空间分布，讨论了地质模型、力学模型和数学计算模型之间的关系，并具体应用岩石破裂准则进行了裂缝计算。
The numerical simulation is an effective method for predicting the structural fracture of subsurface reservoir and determining the space distribution of fracture with quantitative analysis.This paper presents the basic principle and concrete means for numerical simulation of quantitative prediction technology. The technology begins with reversion to find boundary conditions of research area in the light of tectonic deformation. Then computation is used to calculate stress field with Finite Element Method, and finally combined the stress field with crack criterion of rock. So the space distribution of fracture can be determined. In addition the relations among geological model, mechanical model and computation model are discussed. The prediction criterions of rock crack are applied to define fracture growth area. The technology is a systematical engineering project combined with geology,mechanics and computation mathematics.
出处
《石油大学学报（自然科学版）》
CSCD
1996年第5期17-24,共8页
Journal of the University of Petroleum,China(Edition of Natural Science)
基金
中国石油天然气总公司"八五"重点攻关课题
关键词
数值模拟
地质构造
裂缝
有限元法
石油勘探
Numerical simulation
Geologic structure
Fracture
Finite Element Method
Prediction
