Hydrogeological Essay

  • Yevgeny A. Kozlovsky
Part of the Exploration of the Deep Continental Crust book series (EXPLORATION)


Hydrogeological investigations in superdeep wells are associated with great technical and methodological difficulties. For instance, high temperatures and pressures encountered in the well 1-Ernest R. Beiden (see Fig. 1.1), drilled to a depth of 9159 m, did not allow the application of a formation tester. Nevertheless, studies performed in superdeep wells provide interesting and unexpected results. For instance, in the Minibayev well No. 20000, an inflow of strongly gas-containing mineralized water (283 g l-1) of 120 m3 day-1 yield was produced in testing an interval of 4703–5099 m; water was saturated by gas of hydrogen-hydrocarbon composition.


Subsurface Water Lower Zone Drilling Fluid Greenschist Facies Hydrous Mineral 
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Copyright information

© Springer-Verlag Berlin Heidelberg 1987

Authors and Affiliations

  • Yevgeny A. Kozlovsky
    • 1
  1. 1.Ministry of Geology of the USSRMoscowUSSR

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