Herrmann

Dr.rer.nat. Johannes Herrmann

Dr.rer.nat. Johannes Herrmann


Agricolastraße 22, Zimmer 107

Telefon +49 3731 39-2677



Werdegang

seit 09/2021Wissenschaftlicher Mitarbeiter an der TU Bergakademie Freiberg, Institut für Bohrtechnik und Fluidbergbau; Spülung und Zementation
2019 - 2021Post-Doktorand am GFZ im Fachbereich: Geomechanik und Wissenschaftliches Bohren, Projekte: MEET (Risspermeabilität im Kontext Geothermie), iCross (nukleare Entsorgung)
2015 - 2019Promotionsstudium an der Universität Potsdam in Kollaboration mit dem deutschen GeoForschungsZentrum (GFZ), Dissertation: The Mechanical Behavior of Shales
2009 - 2015Geotechnik und Bergbau – Studium an TU Bergakademie Freiberg mit Vertiefung in Petroleum Engineering, Diplomarbeit: Permeabilitätsbestimmung von Steinsalz bei N2 und He unter vorgegeben thermodynamischen Bedingungen

Arbeitsgebiete

  • tba

Lehre

  • Spülung und Zementation.
  • Erschließung fluider Lagerstätten (Öl, Gas, Geothermie) für Geowissenschaftler
  • Spülungspraktikum, Zementationspraktikum, Seminar und Fachkolloqium
  • Betreuung von Projekt-, Studien- und Diplomarbeiten

Veröffentlichungen

  • Cheng, C.; Herrmann, J.;Wagner, B.; Leiss, B.; Stammeier, J.A.;Rybacki, E.; Milsch, H., Long-Term Evolution of Fracture Permeability in Slate: An Experimental Study with Implications for Enhanced Geothermal Systems (EGS). Geosciences2021,11, 443. https://doi.org/10.3390/geosciences11110443
  • Schuster, V., Rybacki, E., Bonnelye, A., Herrmann, J., Schleicher, A. M., & Dresen, G. (2021). Experimental Deformation of Opalinus Clay at Elevated Temperature and Pressure Conditions: Mechanical Properties and the Influence of Rock Fabric. Rock Mechanics and Rock Engineering. https://doi.org/10.1007/s00603-021-02474-3
  • Herrmann, J., Rybacki, E., Sone, H., and Dresen, G. 2019. ‘Deformation Experiments on Bowland and Posidonia Shale—Part II: Creep Behavior at In Situ Pc–T Conditions.’ Rock Mechanics and Rock Engineering. https://doi.org/10.1007/s00603-019-01941-2.
  • Herrmann, J., Rybacki, E., Sone, H., and Dresen, G. 2018 ‘Deformation Experiments on Bowland and Posidonia Shale—Part I: Strength and Young’s Modulus at Ambient and In Situ Pc–T Conditions.’ Rock Mechanics and Rock Engineering 0 (0): 0. https://doi.org/10.1007/s00603-018-1572-4.
  • Rybacki, E., Herrmann, J., Wirth, R., and Dresen, G. 2017. ‘Creep of Posidonia Shale at Elevated Pressure and Temperature.’ Rock Mechanics and Rock Engineering, 1–20. https://doi.org/10.1007/s00603-017-1295-y.
  • Cheng, C., Herrmann, J., Rybacki, E., and Milsch, H.: Long-term evolution of fracture permeability in slate as potential target reservoirs for Enhanced Geothermal Systems (EGS), EGU General Assembly 2021, online, 19–30 Apr 2021, EGU21-12187, https://doi.org/10.5194/egusphere-egu21-12187, 2021
  • Herrmann J., Rybacki E., Wang W., and Milsch H. 2020: “Permeability of fractures in shale rocks – Influence of pressure, temperature, stress and fluid chemistry”, H060-0024 presented at 2020 AGU Fall Meeting, 7-11 Dec
  • Schuster V., Rybacki E., Bonnelye A., Herrmann J., Schleicher A., and Dresen G. 2020: “Experimental Study on the Deformation Behaviour of Sandy Opalinus Clay”, MR007-0008 presented at 2020 AGU Fall Meeting, 7-11 Dec
  • Herrmann, J., Rybacki, E., Wang, W., Milsch, H., Wagner, B., and Leiss, B. 2020. ‘Slates: a potential rock type to extract geothermal energy from the underground?’ EGU General Assembly 2020, Online, 4–8 May 2020, EGU2020-8091, https://doi.org/10.5194/egusphere-egu2020-8091, 2020
  • Herrmann, J., Rybacki, E., Sone, H., and Dresen, G. 2019b. ‘Deformation Experiments on Bowland and Posidonia Shale--Creep Behavior at in Situ p c--T Conditions.’ At AGU Fall Meeting 2019.
  • Rybacki, E., Herrmann, J., Wang, W., and Milsch, H. 2019. ‘Experimental studies on the fracture permeability of unconventional Enhanced Geothermal Systems (EGS).’ At AGU Fall Meeting 2019.
  • Herrmann, J., Rybacki, E., Sone, H., and Dresen, G. 2019a. ‘Creep Behavior of Bowland and Posidonia Shale at In Situ Pc, T - Conditions.’ In EGU General Assembly Conference Abstracts, 2621.
  • Herrmann, J., Rybacki, E., Sone, H., and Dresen, G. 2017. ‘Influence of Mineralogy, Pressure, Temperature and Stress on the Mechanical Properties of Shale Rocks.’ In AGU Fall Meeting Abstracts, 2017:MR33D-0489