An evaluation of interferences in heat production from low enthalpy geothermal doublets systems

Cees J. L. Willems*, Hamidreza M. Nick, Gert Jan Weltje, David F. Bruhn

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

45 Citations (Scopus)
13 Downloads (Pure)


Required distance between doublet systems in low enthalpy geothermal heat exploitation is often not fully elucidated. The required distance aims to prevent negative interference influencing the utilisation efficiency of doublet systems. Currently production licence areas are often issued based on the expected extent of the reinjected cold water plume on the moment of thermal breakthrough. The production temperature, however, may not immediately drop to non-economic values after this moment. Consequently, heat production could continue increasing the extent of the cold water plume. Furthermore, the area influenced by pressure because of injection and production spreads beyond the cold water plume extent, influencing not only the productivity of adjacent doublet systems but also the shape of cold water plumes. This affects doublet life time, especially if adjacent doublets have different production rates. In this modelling based study a multi parameter analysis is carried out to derive dimensionless relations between basic doublet design parameters and required doublet distance. These parameters include the spacing between injector and producer of the same doublet, different production rates, aquifer thickness and minimal required production temperature. The results of this study can be used to minimize negative interference or optimise positive interference aiming at improving geothermal doublet deployment efficiency.

Original languageEnglish
Pages (from-to)500-512
Number of pages13
Early online date22 Jun 2017
Publication statusPublished - 15 Sep 2017


  • Common pool resource
  • Direct use geothermal energy
  • Hot sedimentary aquifers
  • West Netherlands basin

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Building and Construction
  • Pollution
  • Mechanical Engineering
  • Industrial and Manufacturing Engineering
  • Electrical and Electronic Engineering


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