A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS

Ran Qiquan; Gu Xiaoyun

Volume 3 Issue 2

Jun. 1997

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Ran Qiquan, Gu Xiaoyun, 1997. A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS. Journal of Geomechanics, 3 (2): 33-40.

Citation:

Ran Qiquan, Gu Xiaoyun, 1997. A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS. Journal of Geomechanics, 3 (2): 33-40.

Citation:

Ran Qiquan, Gu Xiaoyun, 1997. A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS. Journal of Geomechanics, 3 (2): 33-40.

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A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS

Institute of Mechanics, Chinese Academy of Sciences

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Received: 1997-01-23
Published:

Abstract

Abstract

A three dimensinal elastoplastic model for predicting dynamically reservoir effective stress is established based on the coupled interaction mechanism of reservoir stress and multiphase fluid flow.The model is characteristic of two important aspects:the coupled effect of stress and seepage,and the elastoplastic properties of reservoir rocks under alternative loads of injection and production.The model is solved using elastoplastic incremental finite element method and an example is given.
- effective stress,
- elastoplastic deformation,
- seepage,
- coupled effect,
- dynamical prediction,
- finite element