| 动态预测油藏有效应力的三维弹塑性有限元模型 |
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| 引用本文： | 冉启全,顾小芸.动态预测油藏有效应力的三维弹塑性有限元模型[J].地质力学学报,1997,3(2):33-40. |
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| 作者姓名： | 冉启全 顾小芸 |
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| 作者单位： | 中国科学院力学研究所,中国科学院力学研究所 |
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| 摘 要： | 本文根据油藏应力与渗流相互作用的耦合机理，建立了一个用于油藏有效应力动态预测的三给弹塑性模型。该模型强调了油藏在注采交变载荷作用下应力与渗流的力学耦合效应，以及油藏岩石弹塑性变形的力学特性，并采用弹塑性增量有限元法求解，最后给出了算例。
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| 关 键 词： | 有效应力 弹塑性 动态预测 有限元 油藏 地应力 |
| 收稿时间： | 1997/1/23 0:00:00 |
A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS |
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| Ran Qiquan and Gu Xiaoyun.A THREE DIMENSINAL ELASTOPLASTIC FINITE ELEMENT MODEL FOR PREDICTING DYNAMICALLY RESERVOIR EFFECTIVE STRESS[J].Journal of Geomechanics,1997,3(2):33-40. |
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| Authors: | Ran Qiquan and Gu Xiaoyun |
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| Institution: | Institute of Mechanics, Chinese Academy of Sciences and Institute of Mechanics, Chinese Academy of Sciences |
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| 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. |
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| Keywords: | effective stress elastoplastic deformation seepage coupled effect dynamical prediction finite element |
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