Rehden, Lower Saxony:
STEGAL-MIDAL Natural Gas Pipeline System - Compressor Station


  • Buildings & Architecture
  • Industrial Engineering
  • Oil & Gas


Dorsch International Consultants

Construction Sum

€ 51 million


Wintershall AG, Kassel


From 1991 to 1993

Project Activities

  • Basic design for reconstruction of entire pipeline system including control and automation
  • Detailed design including: Definition of scope of reconstruction, Geological and environmental investigations, Surveying of 106 intersections and 15 stations, Execution of plan approval procedure, Detailed design for tender preparation, Preparation of contract documents for material procurement, rehabilitation, laying of fibre-optic cable and construction work
  • Project management / controlling
  • Construction phase: Construction supervision and commissioning, Checking and preparation of as-built documentation
  • Construction engineering: all service phases for building construction
  • Design of mechanical-electrical equipment: heating and ventilation, sanitary works, electrical explosion protection
  • Design of outdoor facilities: civil engineering works, roads and paths, green space
  • Site supervision


Dorsch International Consultants GmbH

München (Headquarters)
Landsberger Str. 368
80687 München

Phone: +49 89 5797-0
Fax: +49 89 5797-800

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DORSCH CONSULT was retained by Wintershall AG to plan the Rehden underground pore reservoir for gas storage including one compressor station. This involved extending the already extracted pore reservoir and connecting it  to the core MIDAL/STEGAL natural gas pipeline system. The new underground storage reservoir is one of the largest of its kind in Germany.

The compressor station required for the input and withdrawal of the gas to and from the core system has the following capacities:

Storage volume:

  • 1st Development Stage 1.5 bn m3
  • 2nd Development Stage 3.0 bn m3

Withdrawal rate:

  • 700 000 N m3/h and comprises two gas turbine driven
  • radial turbo-compressor units

In addition the installation embraces the following structures:

  • compressor hall
  • gas volume meter station
  • electrical measuring and control building
  • gas dryer
  • gas purifier
  • gas aftercooler
  • pipe runs within installation

The entire installation was approved in accordance with BIMSCHG (German Federal Immission Protection Law).