Inversion Approach For Thermal Data From A Convecting Hydrothermal System Metadata

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Title

  • Main Title Inversion Approach For Thermal Data From A Convecting Hydrothermal System

Creator

  • Author: Kasameyer, P.
    Creator Type: Personal
  • Author: Younker, L.
    Creator Type: Personal
  • Author: Hanson, J.
    Creator Type: Personal

Contributor

  • Sponsor: United States. Department of Energy.
    Contributor Type: Organization

Publisher

  • Name: Lawrence Livermore National Laboratory
    Place of Publication: Livermore, California
    Additional Info: Lawrence Livermore National Laboratory (LLNL), Livermore, CA

Date

  • Creation: 1985-01-01

Language

  • English

Description

  • Content Description: Hydrothermal systems are often studied by collecting thermal gradient data and temperature depth curves. These data contain important information about the flow field, the evolution of the hydrothermal system, and the location and nature of the ultimate heat sources. Thermal data are conventionally interpreted by the ''forward'' method; the thermal field is calculated based on selected initial conditions and boundary conditions such as temperature and permeability distributions. If the calculated thermal field matches the data, the chosen conditions are inferred to be possibly correct. Because many sets of initial conditions may produce similar thermal fields, users of the ''forward'' method may inadvertently miss the correct set of initial conditions. Analytical methods for ''inverting'' data also allow the determination of all the possible solutions consistent with the definition of the problem. In this paper we suggest an approach for inverting thermal data from a hydrothermal system, and compare it to the more conventional approach. We illustrate the difference in the methods by comparing their application to the Salton Sea Geothermal Field by Lau (1980a) and Kasameyer, et al. (1984). In this particular example, the inverse method was used to draw conclusions about the age and total rate of fluid flow into the hydrothermal system.

Subject

  • Keyword: Temperature Gradients Geothermal Legacy
  • Keyword: Salton Sea Geothermal Field
  • Keyword: Fluid Flow
  • Keyword: Geothermal Legacy
  • Keyword: Boundary Conditions
  • Keyword: Heat Sources
  • STI Subject Categories: 15 Geothermal Energy
  • Keyword: Hydrothermal Systems
  • Keyword: Permeability

Collection

  • Name: Office of Scientific & Technical Information Technical Reports
    Code: OSTI

Institution

  • Name: UNT Libraries Government Documents Department
    Code: UNTGD

Resource Type

  • Article

Format

  • Text

Identifier

  • Report No.: UCRL-88882-Revision-1
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 882027
  • Archival Resource Key: ark:/67531/metadc874463
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