Economic evaluation of geothermal reservoir performance through modeling the complexity of the operating EGS in Soultz-sous-Forêts

Held, Sebastian; Genter, Albert; Köhl, Thomas; Kölbel, Thomas; Sausse, Judith; Schoenball, Martin

doi:10.1016/j.geothermics.2014.01.016

Cited by 66 publications

(19 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Although our work did not incorporate fracture slippage and THMC effects it, nonetheless, provides a framework through which to understand how spatial aperture fluctuations affect thermal performance. It shows that fracture surface variations are a reservoir characteristic that researchers should consider in modeling discretely fractured geothermal reservoirs and performing techo-economic analysis (Beckers et al 2014;Held et al 2014). Our systematic approach for generating spatially varying apertures can be used in conjunction with modeling the effects that THMC and fracture slippage have on reservoir thermal performance, by providing a base aperture field that already has a spatially varying aperture field.…”

Section: Discussionmentioning

confidence: 99%

The effect of spatial aperture variations on the thermal performance of discretely fractured geothermal reservoirs

2015

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

The effect of spatial aperture variations on the thermal performance of discretely fractured geothermal reservoirs

2015

View full text Add to dashboard Cite

“…There are two reservoir lithologies for the utilization of geothermal energy in the URG. The crystalline basement, e.g., granite, can be utilized as an enhanced geothermal reservoir, like in Soultz-sous-Forêts (Held et al 2014), and the higher porous and conductive sedimentary formations, like Buntsandstein or Muschelkalk, as hydrothermal reservoir, like Bruchsal (Meixner et al 2014). High flow rates, especially in fracture or fault systems, are expected in the URG to achieve geothermal usage.…”

Section: Upper Rhine Grabenmentioning

confidence: 99%

Triaxial testing and hydraulic–mechanical modeling of sandstone reservoir rock in the Upper Rhine Graben

et al. 2018

Self Cite

View full text Add to dashboard Cite

Background The determination of the subsurface conditions and reservoir properties is indispensable for exploration and exploitation of a geothermal field. It includes the expected geological structures as well as the hydraulic, thermal, chemical and mechanical parameters of the target horizon which should be favorable for geothermal utilization. Most essential is a high permeability to supply sufficient flow rates and high temperatures (Stober and Bucher 2012). An area in Germany which fulfills the criteria is the Upper Rhine Graben with a unique geothermal potential (Agemar et al. 2014). Local temperature anomalies with elevated temperatures up to 165 °C are expected at a depth of 2500 m, while the average geothermal gradient of the URG is above 40K km −1 (Agemar et al. 2013). Especially the sedimentary formation of the Triassic, Buntsandstein and Muschelkalk shows high permeabilities, which are necessary to provide high flow rates (Stober and Bucher 2014).

show abstract

“…The economies of low‐enthalpy heating and high‐temperature power generation were evaluated separately in northern Canada . The different operation scenarios were optimized to find a high‐production model based on complex TH coupling in Soultz EGS . The life‐cycle assessment, energy consumption, and induced seismicity risks also were considered for heat benefits in EGS.…”

Section: Introductionmentioning

confidence: 99%

Economic analysis of heating for an enhanced geothermal system based on a simplified model in Yitong Basin, China

Huang

Zhang

et al. 2019

Energy Science & Engineering

View full text Add to dashboard Cite

Yitong Basin is located in subfrigid zone, and it has a good prospect to use geothermal clean heating. The evaluation of economic efficiency for heating with enhanced geothermal system (EGS) is indispensable. A simplified single‐fracture hydrothermal coupling model with laboratory test is developed in the EGS project to calculate temperature and pressure based on Yitong Basin data. The effects of four factors (K, q, D, and T) on heat production and reservoir characteristics are discussed. The parameters and results of H‐T coupling were applied to economic analysis for heating with EGS from private and social perspectives considering costs and revenues. The results indicate that the combination of laboratory tests (rock physical properties) makes the numerical simulation results more suitable for the study area. The production temperature and heating power will decrease with continuous injection of cold water, and the injection pressure and flow impedance will increase due to the increase in μ/ρ. Four factors (K, q, D, and T) will affect difficulty of fluid injection and reservoir thermal breakthrough, and the high injection rate q may trigger secondary fracturing of reservoir. Heating with EGS in single‐fracture model was uneconomical due to expensive drilling costs. However, heating with EGS can be considered from social perspective based on environment, which can provide advice for decision‐making of the government and business.

show abstract

Economic evaluation of geothermal reservoir performance through modeling the complexity of the operating EGS in Soultz-sous-Forêts

Cited by 66 publications

References 28 publications

The effect of spatial aperture variations on the thermal performance of discretely fractured geothermal reservoirs

The effect of spatial aperture variations on the thermal performance of discretely fractured geothermal reservoirs

Triaxial testing and hydraulic–mechanical modeling of sandstone reservoir rock in the Upper Rhine Graben

Economic analysis of heating for an enhanced geothermal system based on a simplified model in Yitong Basin, China

Contact Info

Product

Resources

About