Validating the application of cyclic hydraulic pressure pulses to reduce breakdown pressure in granite.
| Autor: | Kendrick JE; Department of Earth and Environmental Sciences, Ludwig Maximilian Universität 80333 Munich, Germany.; School of Geosciences, University of Edinburgh, Edinburgh EH9 3FE, UK., Lamur A; Department of Earth and Environmental Sciences, Ludwig Maximilian Universität 80333 Munich, Germany., Mouli-Castillo J; School of Geosciences, University of Edinburgh, Edinburgh EH9 3FE, UK.; James Watt School of Engineering, University of Glasgow, Glasgow G12 8QQ, UK.; Energy Technologies Area, Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA, USA., Lightbody A; School of Geosciences, University of Edinburgh, Edinburgh EH9 3FE, UK., Fraser-Harris A; School of Geosciences, University of Edinburgh, Edinburgh EH9 3FE, UK., Edlmann K; School of Geosciences, University of Edinburgh, Edinburgh EH9 3FE, UK., McDermott CI; School of Geosciences, University of Edinburgh, Edinburgh EH9 3FE, UK., Shipton ZK; Department of Civil and Environmental Engineering, University of Strathclyde, Glasgow G1 1XJ, UK. |
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| Jazyk: | angličtina |
| Zdroj: | IScience [iScience] 2024 Sep 03; Vol. 27 (10), pp. 110881. Date of Electronic Publication: 2024 Sep 03 (Print Publication: 2024). |
| DOI: | 10.1016/j.isci.2024.110881 |
| Abstrakt: | As the geoenergy sector moves toward more sustainable practices, an emerging field of research is the proposed utilization of cyclic hydraulic pressure pulses to safely and efficiently enhance productivity. We demonstrate how cyclic hydraulic pressure pulses can reduce hydraulic breakdown pressure in granite using newly developed experimental equipment, which applies pulsed square waves of fluid pressure to large bench-top samples, monitored with dynamic high-resolution fiber optic strain sensors. Our results show a significant reduction in breakdown pressure can be achieved by cyclic pulsed pumping, and we explore the role of mean pressure and cyclic amplitude. Our results offer new insight into cyclic well-stimulation treatments and show potential for reducing peak power consumption during geothermal exploitation. Competing Interests: The authors declare no competing interests. (© 2024 The Author(s).) |
| Databáze: | MEDLINE |
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