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An Abrasive Jet Borehole Miner.

Public Domain


Details

  • Personal Author:
    Savanick, George A.
  • Description:
    The U.S. Bureau of Mines has designed, built, and tested an abrasive jet borehole miner for hard rock. It integrates an abrasive jet cutter with a downhole slurry pump and is in the form of an assembly that is suspended in a well and is rotated by a turntable at the well head. This device generates a 68.9-Mn/m2, 75.7-Lpm (10,000- psi, 20-gpm) collimated jet containing 7.26 Kg/min (16 lb/min) of abrasive. This jet erodes the rock in the borehole wall and forms a slurry. The addition of the abrasive greatly enhances the erosive power of a 68.9-Mn/m2, 75.7-Lpm (10,000-psi, 20-gpm) jet of water without abrasives. The slurry is pumped to the surface by a downhole eductor. The abrasive jet borehole miner was tested in a simulated well in the laboratory and in a taconite mine. Samples of charcoal granite, Duluth Gabbro, and Sioux quartzite were cut, and the cuttings were pumped in the laboratory. Taconite was cut and pumped from a borehole in an open pit mine. [Description provided by NIOSH]
  • Content Notes:
    in NTRL, no pdf
  • Subjects:
  • Series:
    Mining Publications
  • Document Type:
    Text
  • Genre:
    Journal Article
  • CIO:
    National Institute for Occupational Safety and Health (NIOSH)
  • Division:
    TCRC - Twin Cities Research Center
  • Topic:
    Workplace Safety & Health
  • Location:
    North America
  • Pages in Document:
    1-14
  • NIOSHTIC Number:
    nn:10011073
  • Citation:
    Paper in Proceedings of the 6th American Water Jet Conf 1991Jan; :1-14
  • Editor(s):
    Labus TJ
  • Federal Fiscal Year:
    1991
  • Peer Reviewed:
    False
  • Source Full Name:
    Paper in Proceedings of the 6th American Water Jet Conf., Ed. by T. J. Labus
  • Collection(s):
  • Main Document Checksum:
    urn:sha-512:7dc847c09aedf140bc731323e8446b4703641ae07d6ad9e7b7238120dab30b8f7dcaa9b938d34d035f87873a0fe7fec262d5d13dcaf290925445e82b6de3b57d
  • Download URL:
  • File Type:
    Filetype[PDF - 168.02 KB ]
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