by Vlad Zatonski and Colin Brown Eavor Technologies Inc.
ABSTRACT
Eavor-LiteTM is a full-scale demonstration project of a multilateral closed-loop geothermal system which has been in operation since 2019. The project is located near Sylvan Lake, Alberta, Canada and consists of two 1.7 km long multilateral horizontal wellbores connecting two 2.4 km deep vertical wellbores to create a U-tube shaped closed-loop geothermal system. The horizontal wellbores are intersected using magnetic ranging technology, and sealed with a chemical completion technique, resulting in a large subsurface heat exchanger.
This paper includes updates on:
- Operation of the closed loop system
- Predicted and actual thermodynamic performance.
- Ongoing leak off monitoring and modelling.
- A dispatchability trial and automated load following algorithm implemented in 2023.
A transient thermodynamic model is trained using early production history and forecast is compared against actual performance demonstrating the predictability of conduction-based geothermal systems.
Projects in various stages of development which were enabled by Eavor-Lite will be brieflydescribed along with some of the lessons learned during the operation of the pilot.
Click here to read the full paper.
