dc.contributor.author | Eppner, Fanny | |
dc.contributor.author | Pasquier, Philippe | |
dc.contributor.author | Baudron, Paul | |
dc.contributor.other | IGSHPA Technical/Research Conference and Expo (2017) | |
dc.date.accessioned | 2017-03-06T15:38:13Z | |
dc.date.available | 2017-03-06T15:38:13Z | |
dc.date.issued | 2017 | |
dc.identifier | oksd_igshpa_2017_Eppner | |
dc.identifier.uri | https://hdl.handle.net/11244/49314 | |
dc.description.abstract | Local thermal and chemical conditions may favor minerals' scaling which can cause undesirable operational problems to standing column well systems. Precipitation may reduce heat exchange in the well and the heat exchanger and increase pressure drops in the systems components, as well as the drawdown in the well. In this paper, a coupled thermo-hydro-geochemical model simulating the operation of a standing column well is used to illustrate the link between the temperature and the reaction rate of calcite. The results demonstrate that bleeding only 10% of the pumped water allows to get rid of calcium ions in solution in the well and reduces substantially the precipitated calcite mass. Our simulations clearly indicate that groundwater flow induced by the bleed mainly occurs in the fracture since significant chemical variations are observed downstream of the fracture. We expect that the findings presented in the paper will help demystify the complex thermo-hydro-geochemical behaviour of standing column wells installed in sedimentary rocks. | |
dc.format | application/pdf | |
dc.language | en_US | |
dc.publisher | International Ground Source Heat Pump Association | |
dc.rights | In the Oklahoma State University Library's institutional repository this paper is made available through the open access principles and the terms of agreement/consent between the author(s) and the publisher. The permission policy on the use, reproduction or distribution of the article falls under fair use for educational, scholarship, and research purposes. Contact Digital Resources and Discovery Services at lib-dls@okstate.edu or 405-744-9161 for further information. | |
dc.subject | ground source heat pump systems | |
dc.subject | geothermal resources | |
dc.title | Investigation of thermo-hydro-geochemical processes in a standing column well intersected by a fracture | |
osu.filename | oksd_igshpa_2017_Eppner.pdf | |
dc.identifier.doi | 10.22488/okstate.17.000527 | |
dc.type.genre | Conference proceedings | |
dc.type.material | Text | |