The inaugural geothermal borehole drilled at the MTU Aero Engines site in Munich, Germany has exhibited promising temperature and hydraulic performance, marking a significant step forward for the company's sustainable energy initiatives.
The drilling and pump testing of the initial well for MTU's geothermal heating project have concluded, with early data suggesting a highly productive well. The drilling rig will now be relocated to commence drilling the second well by mid-April.
First announced in 2020, the geothermal venture aims to provide process and space heating for MTU's facilities, slashing current fossil fuel consumption by up to 88%. ERDWERK has overseen the project since its inception, spearheading various stages including feasibility studies and detailed planning. German drilling firm Daldrup & Söhne AG secured the contract for constructing the geothermal doublet.
Drilling operations officially commenced at MTU in late January 2024. The initial borehole, named Allach Th1, spanned a total distance of 2650 meters and successfully intersected the Malm formation on March 18th after nearly two months of drilling. Early indications of mud losses during drilling in the Malm hinted at favorable hydraulic conditions.
Preliminary pumping tests revealed a productivity index (PI) exceeding 50 L/s/bar at approximately 120 L/s, positioning Allach Th1 as one of the most promising Malm wells in terms of hydraulic performance within the Molasse Basin. Initial data suggests a remarkably productive borehole, boasting a flow rate exceeding 100 liters per second and a temperature hovering around 70°C.
“This drilling has demonstrated the exceptional hydraulic properties of the Malm thermal water reservoir for the first time in the northwest of Munich, specifically at the MTU plant site in Munich-Allach,” stated a spokesperson from MTU.
The successful progress of MTU's geothermal endeavor underscores the company's commitment to embracing sustainable energy solutions, contributing to environmental conservation and long-term resource management.
