September News

Geology map and cross-section of the Weald Basin, SE England

Great to see the results from our GNSS and lidar monitoring of the Humbly Grove gas storage site in southern England published this month in First Break. Our ground motion monitoring, together with InSAR, provided high definition temporal and spatial constraint on any surface displacements over an 18 month period (i.e. more than one complete summer-winter gas storage cycle). Surface monitoring formed part of a larger multi-disciplinary project to improve understanding of the sub-surface, involving laboratory rock-def testing, flow modelling, and history matching.

There’s more to come soon on this work, with a further paper headed by Jon Gluyas as part of the Geological Society of London Memoir 52, now in press.

Examples of InSAR and GNSS showing that negligible movement has occurred

Examples of InSAR (left) and GNSS (upper-right) showing that negligible movement occurred. Map (lower-left) shows interpolated variability in fracture intensity across the gas field.