Lumped-parameter models for low-temperature geothermal fields and their application


Sarak H., Onur M., Satman A.

GEOTHERMICS, cilt.34, sa.6, ss.728-755, 2005 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 34 Konu: 6
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.geothermics.2005.09.001
  • Dergi Adı: GEOTHERMICS
  • Sayfa Sayıları: ss.728-755

Özet

The behavior of low-ternperature geothermal reservoirs under exploitation is simulated using analytical lurnped-parameter models. These models consider the effects of fluid production and reinjection, as well as natural recharge, on the pressures (or water levels) of low-temperature, liquid-dominated geothermal systems. The cornputed responses for constant production/injection flow rates are given in the form of analytical expressions. Variable flow rate cases are modeled, based on the Duharnel's principle. Reservoir parameters are obtained by applying a weighted nonlinear least-squares estimation technique in which measured field data are history matched to the corresponding model response. By using history-matched models, the future performance of the reservoir can be predicted for different production/injection scenarios in order to optimize the management of a given geothermal system.