Gas hydrate stability zone of the Barents Sea and Kara Sea region

• Published in: Energy Procedia
• Main Authors: Klitzke, Peter, Luzi-Helbing, Manja, Schicks, Judith M., Cacace, Mauro, Jacquey, Antoine B., Scheck-Wenderoth, Magdalena, Faleide, Jan Inge
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2016
• Subjects: gas hydrate stability zone; 3D modelling; Barents Sea; Kara Sea; VDP::Teknologi: 500::Berg‑ og petroleumsfag: 510::Petroleumsteknologi: 512; VDP::Technology: 500::Rock and petroleum disciplines: 510::Petroleum engineering: 512
• Online Access: https://hdl.handle.net/10037/10455; https://doi.org/10.1016/j.egypro.2016.10.005

Published version. Source at http://dx.doi.org/10.1016/j.egypro.2016.10.005 In this study we assess the present-day gas hydrate stability zone for the Barents Sea and Kara Sea region. Thereby, we make use of a data-based 3D lithosphere-scale pressure and thermal model. The resulting gas hydrate stability zone varies within >1km across the study area and strongly correlates with the local geological settings and the corresponding geothermal gradient. Gas hydrates containing hydrocarbons from a thermogenic source (CH4+C2H3+C3H8) are potentially more widespread than previously assumed. The corresponding thermogenic feed gas may have derived from leaking petroleum systems during late Cenozoic basin inversion.