Geothermal

Geothermal: Trias Westland second geothermal doublet

Project Description

WEP prepared the detailed well design making use of corrosion-resistant materials. Together with partners Veegeo, HVC and Hydreco Geomec research was done in the use of GRE-lined tubulars. This study resulted in the fact that GRE-lined casing is being implemented in the well design as cemented production casing to prevent corrosion without the need for corrosion inhibitors. The wells have a 2 string design with a sealed annulus that can be monitored for well integrity. Access to the reservoir is created by means of perforating. WEP prepared the drilling programs and HSE documents. Drilling engineering support is provided during the drilling phase.

Drilling of the first well (NLW-GT-04) started on June 11th and ended upon completion of NLW-GT-03-S1 on August 29th. Due to hole problems in NLW-GT-03 a sidetrack had to be drilled. Both wells are finally successfully drilled.

Source images: René Kooger – Rig Logistics Supervisor

Challenges

New Technology: GRE-lined casing.

Role of WEP

For this project, Well Engineering Partners is (partially) responsible for making the well designs, drilling programmes, and drilling engineering support.

Overview

  • Client
    Trias Westland B.V.
  • Location
    Naaldwijk
  • Well
    NLW-GT-03-S1 and NLW-GT-04
  • Date
    Start drilling: 10 October 2018
    End execution: 28 August 2020
  • Objective
    Realise second geothermal doublet for Trias Westland.
  • Depth
    Depth (MD): NLW-GT-03-S1: 2600m; NLW-GT-04: 3015m
    Depth (TVD): NLW-GT-03-S1: 2494m; NLW-GT-04: 2401m

View project on the map

Name
Engineering and drilling new geothermal doublet NLW-GT-03-S1 and NLW-GT-04
Description
Realise second geothermal doublet for Trias Westland.
Start Execution
October 10th, 2018
End Execution
August 28th, 2020
Realise second geothermal doublet for Trias Westland.

Other recent projects