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ANALYTIC SOLUTION FOR NON-STABILIZED WELL TEST MODEL WITH GAS AND WATER TWO-PHASE FLOW

Qiaoyun Wang

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Abstract

According to the permeation fluid mechanics of oil reservoir,residue method and bessel function theory,this thesis gets the analytic solution of well test model with gas and water two-phase flow.Moreover,the asymptotic expression in early stage and late stage is offered,and the dimensionless type curve is plotted too.The results can be applied for getting the analytic solution of well test model for the infinite dual porosity reservoir,mult-layer reservoir,compound reservoir,and have an applicable value in well test analysis.

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What this paper is about

According to the permeation fluid mechanics of oil reservoir,residue method and bessel function theory,this thesis gets the analytic solution of well test model with gas and water two-phase flow.Moreover,the asymptotic expression in early stage and late stage is offered,and the dimensionless type curve is plotted too.The results can be applied for getting the analytic solution of well test model for the infinite dual porosity reservoir,mult-layer reservoir,compound reservoir,and have an applicable value in well test analysis.

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Available abstract

According to the permeation fluid mechanics of oil reservoir,residue method and bessel function theory,this thesis gets the analytic solution of well test model with gas and water two-phase flow.Moreover,the asymptotic expression in early stage and late stage is offered,and the dimensionless type curve is plotted too.The results can be applied for getting the analytic solution of well test model for the infinite dual porosity reservoir,mult-layer reservoir,compound reservoir,and have an applicable value in well test analysis.

Key concepts: Dimensionless quantity, Well test (oil and gas), Petroleum engineering, Flow (mathematics), Reservoir engineering, Mechanics, Two-phase flow, Mathematics

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