FOWell for geothermal well monitoring

Following a geothermal well means relating thermal changes to the depth and condition of the installation. FOWell is the integrated well measurement solution from FEBUS Optics. Its geothermal application uses a downhole fibre cable, selected interrogators and dedicated software to examine production-zone temperatures and represented deformation changes.

A selected T1 temperature instrument measures thermal responses along the fibre, while G1 instruments add strain and temperature inputs. FOWell Suite, the well measurement and visualization software, receives the acquired records and presents their positions. Distributed temperatures show gradients along the well rather than a single point value. The strain workflow helps assess fibre position and deformation associated with the installed structure. Selected connected interfaces bring measurements and notifications into the project review.

Geothermal specialists examine suspicious temperature changes and relate the measurements to the represented operating interval. The acquisition supports assessment of both lower-temperature wells and the monitoring arrangement used for higher-temperature projects. The received records give the team a basis for checking a changed thermal or structural response and planning the next investigation. Training, technical support and selected maintenance arrangements assist continuing measurement and interpretation work throughout the configured geothermal project.