Open AccessProgress Toward an Advanced Geothermal Deep-Drilling System
Author(s) -
J.C. Rowley,
Saneatsu Saito,
Roy Long
Publication year - 1995
Publication title -
osti oai (u.s. department of energy office of scientific and technical information)
Language(s) - English
Resource type - Reports
DOI - 10.2172/895943
Subject(s) - geothermal gradient , drill , drilling , drill string , petroleum engineering , hammer , engineering , geology , mechanical engineering , geophysics
A previously developed concept for an advanced geothermal drilling system (AGDS) has been extended toward a feasibility design stage. Hardware projects for two percussion, air and hydraulic, hammer drills are underway. Two drill string options and an unique nitrogen supply system are described
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