Two coupled modelling papers have been published recently with Alex Bond as a co-author, presenting the history and outcomes of the DECOVALEX initiative, and demonstrating the application of coupled thermal-hydraulic-mechanical modelling to abandoned mine stability for heat storage. Full details…

Quintessa has developed a generic database of features, events and processes (FEPs) for the decommissioning of wells or boreholes. The FEP database was developed to support the transition to a net zero-carbon-emitting economy which will require multiple uses of the subsurface, all necessitating the use and subsequent decommissioning of wells and/or boreholes.

The chosen FEPs have been included for their relevance to the long-term behaviour of wells once they have been decommissioned. Nevertheless, some FEPs associated with the well drilling, construction and operation phases, in addition to the FEPs associated with natural and man-made systems surrounding wells, are considered where these can affect the long-term behaviour of decommissioned wells. Full details…

Nuclear Waste Services (NWS) has recently published the Guide to reference groundwater and porewater compositions. This report has been prepared by British Geological Survey (BGS) in collaboration with Quintessa, as an output for the project RWM543 “Reference Groundwaters”. Full details…

This year marks 25 years since David Hodgkinson founded Quintessa with the aim of providing an enjoyable and fulfilling working environment in which talented scientists and mathematicians could use their problem-solving skills to help clients. Over the subsequent years, the Company’s services have grown to include decision support, geosciences, materials modelling, mathematics, risk assessment and training. Full details…

Quintessa is pleased to announce that Peter Webb and Sam Parsons joined the company on 27ᵗʰ August 2024. Peter has joined Quintessa's Warrington office and Sam the Henley office, where they are both members of the Geosciences team. Peter and Sam will be primarily supporting Quintessa's technical work in the sustainable utilisation of the subsurface, as well as being involved with our various other business development activities. Full details…