Successful completion of geothermal doublet in the Netherlands
A Joint Venture by Züblin Ground Engineering and Huisman Equipment reports having successfully completed a geothermal doublet with a turnkey solution in Bergschenhoek north of Rotterdam in the Netherlands.
A Joint Venture by Züblin Ground Engineering and Huisman Equipment reports having successfully completed a geothermal doublet with a turnkey solution in the Netherlands.
In Bergschenhoek north of Rotterdam in the Netherlands, Wayland Energy is currently developing several concessions in order to produce thermal water for heat production purposes. Warmtebedrijf Bergschenhoek B.V. a subsidiary of Wayland Energy is utilizing the geothermal energy to heat greenhouses situated in the Lansingerland region and contracted the Joint Venture Züblin Ground Engineering and Huisman Equipment for drilling and completion of a geothermal doublet as a turnkey project with lump sum contract.
Huisman is a globally operating company with extensive experience in the design and manufacturing of heavy construction equipment for world’s leading companies in the oil & gas, renewables and leisure markets. Züblin Ground Engineering has been offering any kind of special civil engineering services and complex drilling works all over the world. Belonging to STRABAG SE the resources of an established international construction company are available for specific project solutions.
The JV executed all subsurface works for the completion of the geothermal doublet in the Lansingerland concession. The drilling works have been executed by utilizing the Huisman LOC 400 drilling rig – a fully containerized modular rig outfitted with a fully automated pipe-handler and rig floor. The focus of Züblin has been on the overall project management and coordination of all service companies.
The production and injection well have been successfully drilled with positive displacement mud motors instead of using a rotary steerable system to 2709 m (max. inclination of 54°) and 2860 m (max. inclination of 61°) in order to produce thermal water from the Berkel/Rijswijk Sandstone and Delft Sandstone which have been selected as the primary target formations. The secondary target (Alblasserdam) was also encountered in the production drilling.
The drilling works (conductor installation and deep drilling) including all drilling services (drilling fluid and solid control, directional drilling, casing running, cementing, mud logging, wireline logging) as well as the required energy and material supply (casings, float equipment, liner hanger, mud chemicals, wellheads) and the waste management have been part of the contract. In addition major parts of both well tests including ESP string installation, surface pipeworks, data measurement and monitoring have been performed by the Joint Venture.
The pump tests showed a very productive reservoir with at least 400 m³/h flowrate and up to 63°C temperature.
With the recently established connection of the geothermal heat plant to the local district heating system the connected greenhouses can now grow plants and vegetables on a CO2-neutral basis. It is planned to connect about 15 greenhouses in the Bergschenhoek and Bleiswijk area.
Source: release by email, STRABAG