A novel cyclical wellbore-fluid circulation strategy for extracting geothermal energy

A.Q. Al Saedi, P. Sharma and C.S. Kabir

Energy, 2021, vol. 235, issue C

Abstract: Both analytical and numerical modeling methods have helped explore power generation by producing steam with the binary organic Rankine cycle or ORC. A steady-state fluid circulation rate becomes the norm in a closed-loop system in most studies, assuming a stable geothermal gradient. In this study, we explored the suitability of those assumptions, given that the geothermal gradient is a time-variant entity at a well's proximity. Furthermore, the near-wellbore formation cooling necessitates a variable-circulation rate for the cold surface fluid to ensure a stable, wellhead-fluid temperature.

Keywords: Geothermal; Extraction; Fluid circulation; Transient-temperature model; Renewable energy (search for similar items in EconPapers)
Date: 2021
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Citations: View citations in EconPapers (3)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:235:y:2021:i:c:s0360544221016339

DOI: 10.1016/j.energy.2021.121385

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