A Regression Analysis Approach to Van Everdingen-Hurst Dimensionless Water Influx Variables for Infinite and Finite Aquifers

Muhammad Taufiq Fathaddin; Yarra Sutadiwiria; Taufan Marhaendrajana; Sonny Irawan; Onnie Ridaliani Prapansya; Asri Nugrahanti

doi:10.29017/SCOG.47.1.1612

A Regression Analysis Approach to Van Everdingen-Hurst Dimensionless Water Influx Variables for Infinite and Finite Aquifers

Muhammad Taufiq Fathaddin, Yarra Sutadiwiria, Taufan Marhaendrajana, Sonny Irawan, Onnie Ridaliani Prapansya, Asri Nugrahanti

School of Mining and Geosciences

Research output: Contribution to journal › Article › peer-review

Abstract

Water influx calculations have relied on accurate values of the Van Everdingen-Hurst WeD dimensionless variables. For programming and hand calculators, equations are needed to determine WeD. Previous models provide equations for WeD calculations for infinite aquifer cases. This paper presents two sets of regression equations that are simple to apply to obtain accurate values of WeD for either infinite or finite aquifer cases. The proposed equations have good agreement with the Van Everdingen-Hurst method with an average difference of 0.77% and 1.18% for the cases of infinite aquifer and finite aquifer, respectively.

Original language	English
Pages (from-to)	57-64
Number of pages	8
Journal	Scientific Contributions Oil and Gas
Volume	47
Issue number	1
DOIs	https://doi.org/10.29017/SCOG.47.1.1612
Publication status	Published - 2024

Keywords

aquifer
finite
infinite
reservoir
water influx

ASJC Scopus subject areas

Geology
Geophysics
Geotechnical Engineering and Engineering Geology
Fuel Technology

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10.29017/SCOG.47.1.1612

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title = "A Regression Analysis Approach to Van Everdingen-Hurst Dimensionless Water Influx Variables for Infinite and Finite Aquifers",

abstract = "Water influx calculations have relied on accurate values of the Van Everdingen-Hurst WeD dimensionless variables. For programming and hand calculators, equations are needed to determine WeD. Previous models provide equations for WeD calculations for infinite aquifer cases. This paper presents two sets of regression equations that are simple to apply to obtain accurate values of WeD for either infinite or finite aquifer cases. The proposed equations have good agreement with the Van Everdingen-Hurst method with an average difference of 0.77% and 1.18% for the cases of infinite aquifer and finite aquifer, respectively.",

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AU - Marhaendrajana, Taufan

AU - Irawan, Sonny

AU - Prapansya, Onnie Ridaliani

AU - Nugrahanti, Asri

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AB - Water influx calculations have relied on accurate values of the Van Everdingen-Hurst WeD dimensionless variables. For programming and hand calculators, equations are needed to determine WeD. Previous models provide equations for WeD calculations for infinite aquifer cases. This paper presents two sets of regression equations that are simple to apply to obtain accurate values of WeD for either infinite or finite aquifer cases. The proposed equations have good agreement with the Van Everdingen-Hurst method with an average difference of 0.77% and 1.18% for the cases of infinite aquifer and finite aquifer, respectively.

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A Regression Analysis Approach to Van Everdingen-Hurst Dimensionless Water Influx Variables for Infinite and Finite Aquifers

Abstract

Keywords

ASJC Scopus subject areas

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