Continental Deep Drilling in the Upper Palatinate (Federal Republic of Germany)
BETZ, DIETER K. L., NLfB-KTB, Hannover, Germany
Continental deep drilling in the Upper Palatinate (FRG) has spudded its main hole on September 8, 1990, after more than a decade of planning and researching as well as drilling of a 4000 m pilot hole and performing a 3D survey in crystalline rocks.
This well is scheduled for 10,000 m and 300 degrees C and is funded by the German Ministry of Research and Technology. To make it a success, a great many engineering, logging, and geological high technology items had to be improved or developed. Special emphasis is put on rock stability, verticality of the hole, continuous mud and cutting analyses for petrological, mineralogical, and geochemical purposes, detection of rock stresses, and identification of the nature of basement reflectors.
Important information on the tectonic style of a major palaeocollision zone as well as its rocks, their fracturizaton, gas and fluid contact have been obtained and will be found in future. This geologically important science project, an interdisciplinary effort of many geological, engineering, and other research institutions and of industry, will have its impact on the future drilling and well evaluation technologies in hydrocarbon wells, too.
The depth of the main hole at time of the Dallas AAPG Convention will be about 6500 m.
AAPG Search and Discovery Article #91004 © 1991 AAPG Annual Convention Dallas, Texas, April 7-10, 1991 (2009)