Geothermal doublet TNT-GT-01 & TNT-GT-02
Start engineering: December 2018
End execution: May 2020
Target: The Trias reservoir
Depth (AH): 2857m; 2707m
Depth (TVD): 2569m; 2490m
Project Summary
| Client: | Duurzaam Voorne Holding B.V. |
| Doublet: | Tinte |
| Wells: | TNT-GT-01 & TNT-GT-02 |
| Start Engineering: | December 2018 |
| (Expected) End execution: | May 2020 |
| Target: | The Trias reservoir |
| Result: | Water |
| Power (thermal): | approx. 15 MWTh |
| Depths (AH): | TNT-GT-01: 2857m; TNT-GT-02: 2707m |
| Depths (TVD): | TNT-GT-01: 2569m; TNT-GT-02: 2490m |
| Role of WEP: | Well design, Procurement, Drilling Program, HSE documents, Drilling Management and Support |
| Challenges: | New type of well design |
| New Technology: | Use of corrosion resistant materials to ensure life time of the wells. |
Project Description
To cope with corrosion issues without injection of corrosion inhibitor a detailed well design making use of corrosion-resistant materials was made by WEP, in close cooperation with our project partners; Hydreco Geomec, HVC, and Veegeo. WEP assisted in the procurement of well materials and prepared the drilling programs and HSE documents. Drilling of the two geothermal wells was without major problems and the installation of the GRE-lined casing was also a success. Drilling started in March 2020 and was completed in May 2020 using the DrillTec Vario Rig.
