A multi-feedzone geothermal wellbore simulator

Björnsson, Grímur

doi:10.2172/6569407

Cited by 23 publications

(12 citation statements)

References 9 publications

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“…Hadgu et al (1995) coupled TOUGH2 with the steady-state wellbore simulator WFSA used as a TOUGH2 subroutine. Bhat et al (2005)coupled TOUGH2 with the steady-state wellbore simulator HOLA (Björnsson, 1987), designed for the modelling of single and two-phase flow of pure water in wellbores with a multi-feedzone. Tokita et al (2005) coupled TOUGH2 with a multi-feedzone wellbore simulator called MULFEWS (Tokita and Itoi, 2004) and with a two-phase pipeline network simulator.…”

Section: Introductionmentioning

confidence: 99%

Interpretation of production tests in geothermal wells with T2Well-EWASG

et al. 2018

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Highlights• T2Well-EWASG, a coupled wellbore-reservoir numerical simulator for geothermal systems.• Interpretation of geothermal well-tests.• Application of T2Well-EWASG on a short well-test performed on a well of the Wotten Waven geothermal field (Dominica). AbstractIn the geothermal sector, being able to simulate production tests by combining surface and downhole measurements can be extremely useful, improving data interpretation and reducing the impact of unavailable field data. This is possible with T2Well, a coupled wellbore-reservoir simulator. We plugged the EWASG equation of state for high enthalpy geothermal reservoirs into T2Well and extended the function to analytically compute the heat exchange between wellbore and formation at the short times. Changes to the analytical heat exchange function were verified by comparison with wellbore-formation heat exchange numerically simulated. T2Well-EWASG was validated by reproducing the flowing pressure and temperature logs taken from literature, and by using the software for the interpretation of a short production test. Simulation results indicate that T2Well-EWASG can be effectively used to improve the interpretation of production tests performed in geothermal wells.

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Section: Introductionmentioning

confidence: 99%

Interpretation of production tests in geothermal wells with T2Well-EWASG

et al. 2018

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“…TOUGH and its derivatives (Battistelli andAlfredo, 1997 andKiryukhin, 1996), Eclipse (Brouwer et al, 2005), and FEFLOW (Blocher et al, 2010), among others, have been widely utilized for geothermal reservoir simulation. On the other hand, HOLA (Bjornsson andBodvarsson, 1987 andKiryukhin andYampolsky, 2004), and WELLSIM Freeston, 1991 andGunn et al, 1992), among others, are widely utilized wellbore simulators. Most of the existing wellbore simulators are capable of solving mass and energy conservation equations for geothermal fluid flow in wellbores.…”

Section: Introductionmentioning

confidence: 99%

An efficient computational model for deep low-enthalpy geothermal systems

Saeid

Al‐Khoury

Barends

2013

Computers & Geosciences

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“…The components of the total pressure drop (pressure drop due to friction, potential and acceleration) can be expressed as t This section introduces the important expressions a...l1d ratios used for two-phase flow. These formula are taken after Chisholm (1983) and presented in the same form as that expressed by Bjornsson (1987). From Equations (4.6) to (4.11), S can also be expressed in terms of K and x.…”

Section: Single Phase Flowmentioning

confidence: 99%

“…Here, these empirical equations are taken from Chisholm (1983). The notations used and the presentation of the equations are patterned after Bjornsson (1987).…”

Section: Introductionmentioning

confidence: 99%