Prediction of reinejction effects in fault-related subsidiary structures by using fractional derivative-based mathematical models for sustainable design of geothermal reservoirs

Anna Suzuki, Yuichi Niibori, Sergei Fomin, Vladimir Chugunov, Toshiyuki Hashida

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

This study provides a method to evaluate the effects of cold-water injection into an advection-dominated geothermal reservoir. A fractional advection-dispersion equation (fADE) and a fractional heat transfer equation (fHTE) are applied to fault-related structures in geothermal areas where the fracture density is described by a power-law model. Synthetic production data generated by a numerical reservoir simulator reveal that the fADE and the fHTE are in reasonable agreement with the tracer responses and temperature change in a fault zone. Tracer analysis based on the fADE has potential to elucidate fault-related structures and to predict premature thermal breakthroughs quickly and efficiently.

Original languageEnglish
Pages (from-to)196-204
Number of pages9
JournalGeothermics
Volume57
DOIs
Publication statusPublished - 2015 Sep 1

Keywords

  • Fault zone
  • Fractal
  • Fractional advection-dispersion equation (fADE)
  • Reinjection
  • Tracer test

ASJC Scopus subject areas

  • Renewable Energy, Sustainability and the Environment
  • Geotechnical Engineering and Engineering Geology
  • Geology

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