A NUMERICAL PROCEDURE FOR SIMULATION OF HYDRAULICALLY-DRIVEN FRACTURE PROPAGATION IN POROELASTIC MEDIA

被引:223
|
作者
BOONE, TJ
INGRAFFEA, AR
机构
[1] School of Civil and Environmental Engineering, Cornell University, Ithaca, New York
关键词
D O I
10.1002/nag.1610140103
中图分类号
P5 [地质学];
学科分类号
0709 ; 081803 ;
摘要
A procedure for numerical approximation to two‐dimensional, hydraulically‐driven fracture propagation in a poroelastic material is described. The method uses a partitioned solution procedurè to solve a finite element approximation to problems described by the theory of poroelasticity, in conjunction with a finite difference approximation for modelling fluid flow along the fracture. An equilibrium fracture model based on a generalized, Dugdale–Barenblatt concept is used to determine the fracture dimensions. An important feature is that the fracture length is a natural product of the solution algorithm. Two example problems verify the accuracy of the numerical procedure and a third example illustrates a fully‐coupled simulation of fracture propagation. Photographs taken from a high‐performance engineering workstation provide insight into the nature of the coupling among the physical phenomena. Copyright © 1990 John Wiley & Sons, Ltd
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页码:27 / +
页数:1
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