Open Access Open Access  Restricted Access Subscription or Fee Access

Finite Element Analysis of Flow-solid- temperature Three Field Coupling of Thermal Recovery Well

Zhou Zhijun, Jin Zhanjie, Huang Zeming, Yu Shaohua

Abstract


Based on the basic theory of rock mechanics,fluid mechanics, geomechanics, computational mechanics,heat transfer and fluid-solid coupling seepage, establish the temperature, seepage and stress fields coupling mathematical model and numerical model of the porous medium,solved all coupled equations simultaneously by using full coupling algorithm, studied the process and method of three-field coupling modeling by using ADINA which is a software for finite element analysis. Take thermal recovery wells for example with finite element analysis,studied the law of stress - strain variation with time and space and the law of dynamic variation of petrophysical parameters .The results showed that:the closer from the wellhole, the more significant changes in rock strain, porosity, permeability, compression factor of porosity and other physical parameters; The farther away from the wellhole, the change is less obvious. The change of physical parameters which consider coupling conditions is smaller than the uncoupled condition.The oil production which consider coupling is less than the uncoupled conditions, this mainly due to the fluid-solid-thermal coupling effect, the seepage resistance is increase when fluid flows through rock, making oil production decreased.This model simulate the actual conditions of reservoir mining really.

Keywords


mold temperature field,seepage field,stress field,coupling laws, mathematical model,finite element.

Full Text:

PDF


Disclaimer/Regarding indexing issue:

We have provided the online access of all issues and papers to the indexing agencies (as given on journal web site). It’s depend on indexing agencies when, how and what manner they can index or not. Hence, we like to inform that on the basis of earlier indexing, we can’t predict the today or future indexing policy of third party (i.e. indexing agencies) as they have right to discontinue any journal at any time without prior information to the journal. So, please neither sends any question nor expects any answer from us on the behalf of third party i.e. indexing agencies.Hence, we will not issue any certificate or letter for indexing issue. Our role is just to provide the online access to them. So we do properly this and one can visit indexing agencies website to get the authentic information. Also: DOI is paid service which provided by a third party. We never mentioned that we go for this for our any journal. However, journal have no objection if author go directly for this paid DOI service.