Hydrocarbon gases in Palaeogene volcanic rocks from the Lopra-1/1A well, Faroe Islands

• Published in: Geological Survey of Denmark and Greenland (GEUS) Bulletin
• Main Author: Laier, Troels
• Format: Article in Journal/Newspaper
• Language: English
• Published: Geological Survey of Denmark and Greenland (GEUS) 2006
• Subjects: Faroes; Lopra-1/1A; volcanics hydrocarbon gas; isotopes; headspace methane; cuttings; Faroe Islands; Greenland; Lopra; East Greenland
• Online Access: https://geusbulletin.org/index.php/geusb/article/view/4861; https://doi.org/10.34194/geusb.v9.4861

Hydrocarbon gases were monitored in the drilling fluid during deepening of the Lopra-1 well from 2178–3565 m, in which thermogenic, methane-rich gases had been found previously. The mud gas concentration, up to 105 ppm of methane, was generally higher in the hyaloclastite sequence, 2470 m – terminal...