The prototype Terra Invader 350 rig successfully sank a well to a depth of 4,545 meters in Mauerstetten near Kaufbeuren in Bavaria. During this project, we were able to gain valuable experience for improvements and further developments of successor rigs. The pipe handling system and the hydraulic cylinder hoisting system proved their value with their high degree of control precision during drilling.

Track record

Project: Mauerstetten, Kaufbeuren, Germany
Machine type: Terra Invader 350
Final drilling depth: 4,545m
Drill hole diameter: 23’’ to 8½’’
Geology: Tertiary, malm
Purpose: Geothermal energy

Operator: Exorka International Ltd.