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Category :
Languages : en
Pages :
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The relationship between production rates of large diameter geothermal production wells, and slimholes, is studied. The analysis is based on wells completed in liquid-dominated geothermal fields, where flashing occurs either in the wellbore or at the surface. Effects of drawdown in the reservoir, and pressure drop in the wellbore, are included; heat losses from the wellbore to the formation are not presently included in our analysis. The study concentrates on the influence of well diameter on production rate. For situations where the pressure drop is dominated by the reservoir, it is found that the mass flowrate varies with diameter according to W [approximately] D[sup [alpha]], where the exponent [alpha] is a function of reservoir outer radius, well diameter and skin factor. Similarly, when pressure drop in the wellbore is dominant, the scaling exponent was found to be a function of well diameter and pipe roughness factor. Although these scaling laws were derived for single-phase flow, numerical simulations showed them to be reasonably accurate even for cases where flashing occurs in the wellbore.
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 442
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Author:
Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 336
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Author:
Publisher: Geothermal Resources Council
ISBN:
Category : Nature
Languages : en
Pages : 904
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Author: M. P. Hochstein
Publisher:
ISBN: 9780868690087
Category : Geothermal engineering
Languages : en
Pages : 290
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Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 540
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Author: Sadiq J. Zarrouk
Publisher: Academic Press
ISBN: 0128149477
Category : Science
Languages : en
Pages : 367
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Book Description
Geothermal Well Test Analysis: Fundamentals, Applications and Advanced Techniques provides a comprehensive review of the geothermal pressure transient analysis methodology and its similarities and differences with petroleum and groundwater well test analysis. Also discussed are the different tests undertaken in geothermal wells during completion testing, output/production testing, and the interpretation of data. In addition, the book focuses on pressure transient analysis by numerical simulation and inverse methods, also covering the familiar pressure derivative plot. Finally, non-standard geothermal pressure transient behaviors are analyzed and interpreted by numerical techniques for cases beyond the limit of existing analytical techniques. Provides a guide on the analysis of well test data in geothermal wells, including pressure transient analysis, completion testing and output testing Presents practical information on how to avoid common issues with data collection in geothermal wells Uses SI units, converting existing equations and models found in literature to this unit system instead of oilfield units
Author: Enrico Barbier
Publisher:
ISBN: 9780473031237
Category : Business & Economics
Languages : en
Pages : 928
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Book Description
Four hundred and fifty-four papers arranged in 15 sections.
Author:
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 808
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Author: James Butz
Publisher:
ISBN:
Category : Geothermal engineering
Languages : en
Pages : 236
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