EFFECTIVE WELLBORE RADIUS MODEL WITH CONSTANT PRESSURE AT EXTERNAL BOUNDARY AND ITS TYPE-CURVES IN WELL TEST ANALYSIS

doi:10.3863/j.issn.1000-2634.1993.04.008

Abstract

Abstract:

One of the main problems in well test analysis is that of constant pressure at external boundary. Having considered the wellbore storage and skin effects, this paper sets up a rigorous effective wellbore radius mathematical model, which is suitable for the homogeneous and isotopic porous medium and the circular reservoir with constant pressure at external boundary, and gives out a solution to this model in Laplace transform. Through numerical reversion, this paper calculates type-curves for this problem. The results obtained are accurate and reliable.

Key words: Well test, Mathematical model, Constant Pressure at external boundary, TyPe-curve

CLC Number:

TE353.2

Jia Yong-lu. EFFECTIVE WELLBORE RADIUS MODEL WITH CONSTANT PRESSURE AT EXTERNAL BOUNDARY AND ITS TYPE-CURVES IN WELL TEST ANALYSIS[J]. 西南石油大学学报(自然科学版), 1993, 15(4): 51-57.

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URL: http://journal15.magtechjournal.com/Jwk_xnzk/EN/10.3863/j.issn.1000-2634.1993.04.008

http://journal15.magtechjournal.com/Jwk_xnzk/EN/Y1993/V15/I4/51

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EFFECTIVE WELLBORE RADIUS MODEL WITH CONSTANT PRESSURE AT EXTERNAL BOUNDARY AND ITS TYPE-CURVES IN WELL TEST ANALYSIS

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