AV, reducing corrosion

Aardwarmte Vogelaer, reducing corrosion and scaling in geothermal projects

Publieke samenvatting

Geothermal water is difficult to work with because of its composition. Because of the harsh chemical composition corrosion (wear wall thickness) and scaling (pollution and congestion) occur. These processes have very negative consequences. For example damage to the casing, the equipment and possibly a lower flow rate.

The objective of the project is to reduce the enormous current corrosion and scaling problems in geothermal projects by using the combination of GRE pipe systems and an inhibitor string. Therefore the maintenance costs of geothermal projects in the coming years can go down.

Korte omschrijving
“Aardwarmte Vogelaer” is a geothermal project in Poeldijk. The plan is to start drilling in July 2016. Corrosion and scaling causes major problems during other, now running, geothermal projects. It was very costly (maintenance costs) to solve these problems. Consequently it was examined how these problems can be solved. Aardwarmte Vogelaer now intends to combine two innovative techniques to significantly reduce these problems. These techniques are:

using GRE (Glassfiber Reinforced Epoxy) pipe systems

using an inhibitor string

The intention is to combine both these techniques in the Geothermal project Aardwarmte Vogelaer. If the use, as expected, turns out to be a success, these techniques will also be used by future geothermal projects and will become “the standard”.

Aardwarmte Vogelaer will make use of GRE pipe systems and an inhibitor string. If the use, as expected, turns out to be a success, Aardwarmte Vogelaer will reduce maintenance costs. Then future geothermal projects will also use these techniques and reduce maintenance costs. As a result, SDE+ subsidy can be reduced.