Matches in SemOpenAlex for { <https://semopenalex.org/work/W4322009872> ?p ?o ?g. }
Showing items 1 to 56 of
56
with 100 items per page.
- W4322009872 abstract "In 2018, after more than 700 years, the last black coal mine ceased operation in the greater Ruhr region in western Germany. In addition to the repurposing of the unused subsurface infrastructure for heat storage projects, the utilization of deep geothermal resources, located below mining levels in the Devonian Massenkalk formations, is the most promising way of facilitating the green energy transition in this highly populated region. The operation of fluid injection or withdrawal during geothermal production alters subsurface stress and poses questions about the possible reactivation of faults in the greater Ruhr region, with strong implications for seismic hazard potential. Deep geothermal resources depend on permeable pathways (i.e., fault zones and fracture networks) in the subsurface, which are known to have certain intrinsic pre-operational seismic hazard. In this study, we evaluate the probability of reactivation (using the so-called slip tendency and fracture susceptibility indicators) and dilation tendency of major faults accounting for uncertainties of in situ stress conditions, fault geometries, and frictional properties. Furthermore, we investigate the spatio-temporal evolution of the slip tendency of a major fault in the region during geothermal operations utilizing coupled thermo-hydro-mechanical numerical models. This study benefits from a recently published in situ stress database of the greater Ruhr region derived from 429 hydrofracturing tests performed across several coal mines. The assessment of fault reactivation utilizing probabilistic and coupled numerical modelling approaches, as presented in this study, aims at de-risking the exploration of deep geothermal systems in the greater Ruhr region and can hopefully serve as an example for quantification of pre-operational seismic hazards in other regions. Based on preliminary results, we find that the NW-SE striking faults are much more prone to reactivation, in comparison to the NE-SW ones, which are oriented unfavorably under prevailing stress conditions. We also find that thermal stress contributes significantly to fault stability, especially during long-term geothermal production." @default.
- W4322009872 created "2023-02-26" @default.
- W4322009872 creator A5030094722 @default.
- W4322009872 creator A5031471660 @default.
- W4322009872 creator A5068047255 @default.
- W4322009872 creator A5074853241 @default.
- W4322009872 creator A5076551199 @default.
- W4322009872 date "2023-05-15" @default.
- W4322009872 modified "2023-09-29" @default.
- W4322009872 title "Quantification of pre-operational seismic hazard of deep geothermal systems exemplified in the greater Ruhr region (Germany)" @default.
- W4322009872 doi "https://doi.org/10.5194/egusphere-egu23-8557" @default.
- W4322009872 hasPublicationYear "2023" @default.
- W4322009872 type Work @default.
- W4322009872 citedByCount "0" @default.
- W4322009872 crossrefType "posted-content" @default.
- W4322009872 hasAuthorship W4322009872A5030094722 @default.
- W4322009872 hasAuthorship W4322009872A5031471660 @default.
- W4322009872 hasAuthorship W4322009872A5068047255 @default.
- W4322009872 hasAuthorship W4322009872A5074853241 @default.
- W4322009872 hasAuthorship W4322009872A5076551199 @default.
- W4322009872 hasConcept C111766609 @default.
- W4322009872 hasConcept C127313418 @default.
- W4322009872 hasConcept C165205528 @default.
- W4322009872 hasConcept C16674752 @default.
- W4322009872 hasConcept C174306757 @default.
- W4322009872 hasConcept C175551986 @default.
- W4322009872 hasConcept C518406490 @default.
- W4322009872 hasConcept C69361100 @default.
- W4322009872 hasConcept C8058405 @default.
- W4322009872 hasConcept C83176761 @default.
- W4322009872 hasConceptScore W4322009872C111766609 @default.
- W4322009872 hasConceptScore W4322009872C127313418 @default.
- W4322009872 hasConceptScore W4322009872C165205528 @default.
- W4322009872 hasConceptScore W4322009872C16674752 @default.
- W4322009872 hasConceptScore W4322009872C174306757 @default.
- W4322009872 hasConceptScore W4322009872C175551986 @default.
- W4322009872 hasConceptScore W4322009872C518406490 @default.
- W4322009872 hasConceptScore W4322009872C69361100 @default.
- W4322009872 hasConceptScore W4322009872C8058405 @default.
- W4322009872 hasConceptScore W4322009872C83176761 @default.
- W4322009872 hasLocation W43220098721 @default.
- W4322009872 hasOpenAccess W4322009872 @default.
- W4322009872 hasPrimaryLocation W43220098721 @default.
- W4322009872 hasRelatedWork W1482118137 @default.
- W4322009872 hasRelatedWork W1563966024 @default.
- W4322009872 hasRelatedWork W1984874272 @default.
- W4322009872 hasRelatedWork W2076840186 @default.
- W4322009872 hasRelatedWork W2147831838 @default.
- W4322009872 hasRelatedWork W2148181871 @default.
- W4322009872 hasRelatedWork W2155849430 @default.
- W4322009872 hasRelatedWork W2160376036 @default.
- W4322009872 hasRelatedWork W2553781797 @default.
- W4322009872 hasRelatedWork W4253804117 @default.
- W4322009872 isParatext "false" @default.
- W4322009872 isRetracted "false" @default.
- W4322009872 workType "article" @default.