Recommendations For Integrated Reservoir Management, Chpm2030 Deliverable D2.1
| Autor: | Szanyi, János, Osvald, Máté, Medgyes, Tamás, Kóbor, Balázs, Tóth, Tivadar M., Madarász, Tamás, Tóth, Andrea Kolencsinké, Debreczeni, Ákos, Kovács, Balázs, Vásárhelyi, Balázs, Rozgonyi-Boissinot, Nikoletta |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| DOI: | 10.5281/zenodo.1207066 |
| Popis: | In the provisioned CHPM technology an enhanced geothermal system would be established on a deep metal-bearing geological formation, which would be conducted in a way that the co-production of energy and metals could be possible. In the present study heat conductivity measurements were carried out on rocks with high potentiality to form a basis of an orebody-EGS system. The same samples were investigated in a pressure chamber to determine which metals and minerals can be mobilized in such a system and at what fluid flow levels. Results from stress field determination of various metallic rocks by rock mechanics and fracture enhancement were used to build 3-dimensional stochastic fracture, fluid flow, heat and mass transport models. These models aimed to define the extractable amount of heat and metallic minerals in different scenarios. During these investigations, a novel laser-technology was introduced and thoroughly tested to enhance permeability and fractures in rocks of interest on a laboratory scale. Rock mechanical studies point at granitoid formations as the prime candidate to host an enhanced communicating fracture network. Mineralisations from granitoid rocks were put to high pressure and high temperature tests and results indicate enhanced release in Pb, Zn and Li. 3D stochastic fracture network modelling (RepSim) and finite element flow and transport modelling (FeFlow) determined that fluid production at 3.500 m3/day (40 l/s) is a sustainable possibility. Projecting these parameters to a pilot site metal production may reach magnitudes in the order of kg/day. Our studies indicate that the proposed orebody-EGS system may be a feasible solution to the coproduction of electricity, heat and metal on granite based reservoirs. The conclusions presented in this report are based on laboratory measurements and numerical simulations; upscaling them to pilot plant proportions will be informed by data obtained from WP5. H2020 |
| Databáze: | OpenAIRE |
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