A Study on the Heat Penetrating Coupling Unsteady State Model of Heavy Oil During Steam Flooding |
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| Authors: | W.-G. Li S.-L. Yang X.-Y. Yang R.-R. Xu Z.-L. Wang |
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| Affiliation: | MOE Key Laboratory of Petroleum Engineering , China University of Petroleum , Beijing , China |
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| Abstract: | An unsteady model of temperature field coupled with seepage field during thermal recovery process was derived and the solution method was given. Considering the effects of pressure and temperature during the derivation, the variation laws, with different types of constraints, of temperature and pressure changing with time and space were summarized in the model. The deduced governing equations are applied to oil fields with practical data and the comparison of the results with the numerical results and empirical formula calculation results is basically the same. Examples show that the heat penetrating coupling method can analyze dynamic variation of the formation temperature and pore fluid pressure data near borehole wall quantitatively during thermal production in heavy oil reservoir. |
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| Keywords: | coupled heat conduction and advection heavy oil steam flooding unsteady model viscosity |
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