Productivity estimation of the well with straight-line profile in anisotropic reservoir

Authors: F.N. Domanyuk, A.B. Zolotukhin (Gubkin Russian State University of Oil and Gas)
In depth analysis of literature shows there is no adequate PI correlations for slant wells with arbitrary position in anisotropic reservoir. On the basis of superposition principle and method of images new analytical solution for productivity evaluation of straight-line oil well has been developed. It’s shown, that simple analytical solutions could predict straight well productivity under steady-state conditions with great accuracy – relative error does not exceed the value of 4 %.
In depth analysis of literature shows there is no adequate PI correlations for slant wells with arbitrary position in anisotropic reservoir. On the basis of superposition principle and method of images new analytical solution for productivity evaluation of straight-line oil well has been developed. It’s shown, that simple analytical solutions could predict straight well productivity under steady-state conditions with great accuracy – relative error does not exceed the value of 4 %.


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