Materials

The durability and reliability of modern drilling technologies are restricted by the severe environmental conditions. The mechanical strain caused by drilling to increased depths and through hard formations, as well as high surrounding temperatures in wells is critical. Moreover, the strains caused by ambient pressures and corrosive media are of great importance. New materials, material coatings, tools and systems are required.

For increased durability and reliability of modern drilling technologies the following efforts are being made:

• The strains must be characterized realistically. This is important for accurate allocation of drilling systems

• High strength and heat resistant materials and coating must be developed

• The adaptation technologies and the construction of drilling systems must be improved.

The results which are supposed to be achieved within the framework of these research fields can be used additionally in the area of geothermal subsurface constructions.

Coordinator: Prof. Dr. Georg-Peter Ostermeyer