Explicit Deconvolution of Well Test Data Dominated by Wellbore Storage

K. Razminia, A. Hashemi, A. Razminia and D. Baleanu

Abstract and Applied Analysis, 2014, vol. 2014, 1-12

Abstract:

This paper addresses some methods for interpretation of oil and gas well test data distorted by wellbore storage effects. Using these techniques, we can deconvolve pressure and rate data from drawdown and buildup tests dominated by wellbore storage. Some of these methods have the advantage of deconvolving the pressure data without rate measurement. The two important methods that are applied in this study are an explicit deconvolution method and a modification of material balance deconvolution method. In cases with no rate measurements, we use a blind deconvolution method to restore the pressure response free of wellbore storage effects. Our techniques detect the afterflow/unloading rate function with explicit deconvolution of the observed pressure data. The presented techniques can unveil the early time behavior of a reservoir system masked by wellbore storage effects and thus provide powerful tools to improve pressure transient test interpretation. Each method has been validated using both synthetic data and field cases and each method should be considered valid for practical applications.

Date: 2014
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Persistent link: https://EconPapers.repec.org/RePEc:hin:jnlaaa:912395

DOI: 10.1155/2014/912395

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