Geothermal doublet PNA-GT-05-S1 & PNA-GT-06
Start engineering: October 2017
End drilling wells: December 7th 2018
Start drilling sidetrack: June 30th 2019
End drilling sidetrack: July 22nd 2019
Target: Water reservoir in the Delft Sandstone
Depth (AH):3211m; 3349m
Depth (TVD): 2376m; 2310m
Project Summary
Client: | Ammerlaan Geothermie B.V. |
Doublet: | Pijnacker |
Wells: | PNA-GT-05-S1 & PNA-GT-06 |
Start Engineering: | October 2017 |
End drilling wells: | December 7th, 2018 |
Start drilling sidetrack: | June 30th, 2019 |
End drilling sidetrack: | July 22nd, 2019 |
Target: | Water reservoir in the Delft Sandstone |
Result: | Succesfully drilled the doublet |
Power (thermal): | approx. 7 MWTh |
Depths (AH): | PNA-GT-05-S1: 3211m; PNA-GT-06: 3349m |
Depths (TVD): | PNA-GT-05-S1: 2376m; PNA-GT-06: 2310m |
Role of WEP: | Well Engineering, Procurement, Drilling Supervision and Support during execution. |
Challenges: | High angle wells (60 deg inclination), Small location, Long middle section (1800m) |
Project Description
Ammerlaan Geothermie B.V. has drilled two wells forming a geothermal doublet for district and greenhouse heating. Both wells have long tangent sections @ 60 degrees. Both wells are drilled successfully to TD . Installation of liner over reservoir was difficult. Both wells required a cased hole sidetrack to successfully install the liner over the reservoir.