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U.S. Department of Energy
Office of Scientific and Technical Information

Support research for development of improved geothermal drill bits. Semi-annual report

Technical Report ·
DOI:https://doi.org/10.2172/5665260· OSTI ID:5665260
The progress made on two major tasks in Phase III is summarized: material selection, fabrication and testing of MK-III bits; and seal and lubricant evaluation. Candidate steel and carbide properties were evaluated in laboratory tests before final selections were made for the MK-III bit. The sealed bit program covers extensive testing of conventional elastomeric seals, experimental elastomeric seals, and experimental heterogeneous seals, as well as lubricant tests using a specially constructed test machine. (MHR)
Research Organization:
Terra Tek, Inc., Salt Lake City, UT (USA)
OSTI ID:
5665260
Report Number(s):
TR-77-126
Country of Publication:
United States
Language:
English