Scope of Services

The great strength of Untergrundspeicher- und Geotechnologie-Systeme GmbH (UGS) is that we can provide a whole range of services under one roof. By combining project management and engineering with drilling and workover rigs in a single company we reduce the number of interfaces in your project, provide solutions that take all aspects into account and guarantee that your project is operated safely and efficiently.

Engineering Services

  • Pre-investigations and site selection studies
  • Exploration and feasibility studies
  • Preparation of suitability studies
  • Support with approval processes
  • Basic design, FEED, detailed engineering, working programs
  • Specifications, drawing up of tender documents, bid evaluation
  • Procurement of supplies and services
  • Project management
  • Construction management and supervision
  • Test operation, commissioning and operation

Supply of Plant Components

  • Leaching plants
  • First-gas-filling plants
  • Gas dehydration plants
  • Tanks

Services for subsurface and surface facilities

  • Drilling / workover and tests with our own rigs and equipment
  • Operation of leaching plants, brine disposal plants, first-gas-filling plants and storage plants


UGS have concentrated their efforts on the following underground storage techniques:

  • Re-use of depleted hydrocarbon deposits
  • Use of saline aquifer structures
  • Creation of caverns by leaching salt deposits including the disposal of the resulting brine

For undertaking projects in the field of mined hard rock caverns as well as for increasing our working capacity UGS can draw on the know-how and resources of the  Géostock Group (