Quantifying Uncertainty in Fractured Geothermal Reservoirs Using a Discrete Fracture Model

Fractures occur at varying scales and orientations in the subsurface. The role of fractures as conduits for fluid flow in a reservoir must be well constrained for planning and development of a geothermal system. This study examines the uncertainty associated with fractures in a rock matrix using a discrete fracture network modelling approach;...

Geochemical modelling of hydrogen gas migration in an unsaturated bentonite buffer

This paper presents an investigation of the transport and fate of hydrogen gas through compacted bentonite buffer. Various geochemical reactions that may occur in the multiphase and multicomponent system of the unsaturated bentonite buffer are considered. A reactive gas transport model, developed within an established coupled thermal, hydraulic,...

Simulation of repository gas migration in a bentonite buffer

"Second order" exploratory data analysis of the large scale gas injection test (lasgit) dataset, focused around known gas migration events

Within large-scale experimental datasets a wealth of small scale information can typically be found. An example of such an experiment is the Large Scale Gas Injection Test (Lasgit). A toolkit has been developed to facilitate the investigation of the small scale or ‘second order’ detail contained within Lasgit’s dataset. Results obtained through...

Information contained within the large scale gas injection test (Lasgit) dataset exposed using a bespoke data analysis toolkit