KCA Deutag joins Green Therma and SLB in strategic collaboration to deliver new revolutionary closed-loop geothermal solution.

20 March 2024

KCA Deutag has announced it is joining Green Therma and SLB in a strategic Heat4Ever collaboration.

The purpose of the partnership is to deliver Heat4Ever wells to public and private customers by applying mission-critical services and competencies, and benefit from their experience in the oil and gas industry in geothermal energy production.

KCA Deutag will deliver the drilling rig and associated services, further supported by its Kenera business unit for rig technologies and digital services. SLB will deliver well services, directional drilling expertise for horizontal wells and geothermal expertise, integrated project management experience and service.

Green Therma will deliver geological expertise, and the revolutionary DualVac system, that enables the geothermal well to extract heat from the subsurface in a closed-loop system, avoiding geological reservoir risk, and pollution from subsurface liquids to enable a flexibility that so far has not been possible in geothermal heating.

It has been widely recognised that the success of geothermal projects relies heavily on bringing the expertise developed during decades in the oil and gas industry into play when executing geothermal projects. Hence, the strategic collaboration is viewed as an essential step in realising the potential of Green Therma’s revolutionary closed-loop geothermal solution.

Jørgen Peter Rasmussen, CEO at Green Therma says: “We are privileged to work with KCA Deutag and SLB on commercialising our technology and consider the strategic collaboration a prerequisite for the exciting and rewarding journey ahead of us. This gives us full operational capabilities and access to the best technology and competencies in drilling deep and horizontal geothermal wells. Together we will complete hundreds of Heat4Ever wells to give our customers greener heat for their homes and businesses.”

Simon Drew, President of Land at KCA Deutag added: “We are extremely proud to be part of this innovative geothermal project. By harnessing our extensive experience in drilling and as an OEM already servicing the geothermal market we are forging a path towards a cleaner energy future. Together with our partners, we're not just drilling wells, we're providing sustainable solutions, ensuring a reliable and enduring energy supply for the future."

The first project that the three partners are expected to realise is a full-scale demonstration project, where the closed-loop solution is constructed in a horizontal well and connected to an existing district heating network.

The geothermal well includes both a vertical section as well as a horizontal section, which will be placed at a depth of approx. 3.5 km, enabling a temperature high enough for direct use via heat exchangers into the district heating network.


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