Well-Doublets: A First-Order Assessment of Geothermal SedHeat Systems
| Autor: | Yuri Leonenko, SeyedBijan Mahbaz, Alireza Dehghani-Sanij, Maurice B. Dusseault, Ali Yaghoubi, Erfan Sarvaramini |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2021 |
| Předmět: |
Chemical process
020209 energy 02 engineering and technology 010501 environmental sciences 01 natural sciences lcsh:Technology lcsh:Chemistry chemical coupling Geomechanics geothermal 0202 electrical engineering electronic engineering information engineering General Materials Science Instrumentation Geothermal gradient lcsh:QH301-705.5 0105 earth and related environmental sciences well-doublet system Fluid Flow and Transfer Processes disequilibrium Petroleum engineering business.industry lcsh:T Process Chemistry and Technology Global warming General Engineering sustainability lcsh:QC1-999 Computer Science Applications Renewable energy climate change lcsh:Biology (General) lcsh:QD1-999 lcsh:TA1-2040 Sustainability Heat transfer Environmental science business lcsh:Engineering (General). Civil engineering (General) Thermal energy lcsh:Physics thermomechanical effects |
| Zdroj: | Applied Sciences Volume 11 Issue 2 Applied Sciences, Vol 11, Iss 697, p 697 (2021) |
| ISSN: | 2076-3417 |
| DOI: | 10.3390/app11020697 |
| Popis: | Renewable and sustainable energy sources can play an important role in meeting the world&rsquo s energy needs and also in addressing environmental challenges such as global warming and climate change. Geothermal well-doublet systems can produce both electrical and thermal energy through extracting heat from hot-water aquifers. In this paper, we examine some potential challenges associated with the operation of well-doublet systems, including heat conductivity, chemical, and mechanical issues. In these systems, geomechanics issues such as thermal short-circuiting and induced seismicity arise from temperature and pressure change impacts on the stress state in stiff rocks and fluid flow in fractured rock masses. Coupled chemical processes also can cause fluid channeling or formation and tubular goods plugging (scaling) with precipitates. Mechanical and chemical disequilibrium conditions lead to increased production uncertainties hence risk, and therefore coupled geo-risk assessments and optimization analyses are needed for comparative commercialization evaluations among different sites. The challenges related to heat transfer processes are also examined. These studies can help better understand the issues that may arise during the operation of geothermal well-doublet systems and improve their effectiveness, subsequently reducing associated costs and risks. |
| Databáze: | OpenAIRE |
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