Application of inverse modeling to geothermal reservoir simulation

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The authors have developed inverse modeling capabilities for the non-isothermal, multiphase, multicomponent numerical simulator TOUGH2 to facilitate automatic history matching and parameter estimation based on data obtained during testing and exploitation of geothermal fields.The ITOUGH2 code allows one to estimate TOUGH2 input parameters based on any type of observation for which a corresponding simulation output can be calculated. Furthermore, a detailed residual and error analysis is performed, and the uncertainty of model predictions can be evaluated. Automatic history matching using ITOUGH2 is robust and efficient so that model parameters affecting geothermal field performance can reliably be estimated based on a ... continued below

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11 p.

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Finsterle, S.; Pruess, K.; Bullivant, D.P. & O`Sullivan, M.J. January 1, 1997.

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Description

The authors have developed inverse modeling capabilities for the non-isothermal, multiphase, multicomponent numerical simulator TOUGH2 to facilitate automatic history matching and parameter estimation based on data obtained during testing and exploitation of geothermal fields.The ITOUGH2 code allows one to estimate TOUGH2 input parameters based on any type of observation for which a corresponding simulation output can be calculated. Furthermore, a detailed residual and error analysis is performed, and the uncertainty of model predictions can be evaluated. Automatic history matching using ITOUGH2 is robust and efficient so that model parameters affecting geothermal field performance can reliably be estimated based on a variety of field measurements such as pressures, temperatures, flow rates, and enthalpies. The paper describes the methodology of inverse modeling and provides a detailed discussion of sample problems to demonstrate the application of the method to data from geothermal reservoirs.

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11 p.

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OSTI as DE97003761

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  • Other Information: PBD: Jan 1997

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  • Other: DE97003761
  • Report No.: LBNL--39869
  • Report No.: CONF-970114--1
  • Grant Number: AC03-76SF00098
  • DOI: 10.2172/463588 | External Link
  • Office of Scientific & Technical Information Report Number: 463588
  • Archival Resource Key: ark:/67531/metadc682959

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Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • January 1, 1997

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  • July 25, 2015, 2:21 a.m.

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  • April 5, 2016, 1:10 p.m.

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Finsterle, S.; Pruess, K.; Bullivant, D.P. & O`Sullivan, M.J. Application of inverse modeling to geothermal reservoir simulation, report, January 1, 1997; California. (digital.library.unt.edu/ark:/67531/metadc682959/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.