A self-advancing drilling system comprising a drilling apparatus, the drilling apparatus having at least one leading fluid cutting nozzle, means on the drilling apparatus to provide forward movement to the drilling apparatus, the drilling system further comprising a drill string formed from a recoverable flexible hose.
申请公布号
WO9721900(A1)
申请公布日期
1997.06.19
申请号
WO1996AU00783
申请日期
1996.12.05
申请人
THE UNIVERSITY OF QUEENSLAND;COMMONWEALTH SCIENTIFIC AND INDUSTRIAL RESEARCH OR;BHP COAL PTY. LTD.;TRUEMAN, ROBERT;MEYER, TIMOTHY, GREGORY, HAMILTON;STOCKWELL, MATTHEW
发明人
TRUEMAN, ROBERT;MEYER, TIMOTHY, GREGORY, HAMILTON;STOCKWELL, MATTHEW
