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This page displays all 「FI」 in main group E21B21/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Methods or apparatus for flushing boreholes, e.g. by use of exhaust air from motor (freeing objects stuck in boreholes by flushing E21B 31/03) [2006.01] | HB | CC | 2D129 | |
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Muddy water for drilling holes | HB | CC | 2D129 | |
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Others | HB | CC | 2D129 | |
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.Arrangements for handling drilling fluids or cuttings outside the borehole, e.g. mud boxes [2006.01] | HB | CC | 2D129 | |
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..Means engaging the bore entrance, e.g. hoods for collecting dust [7] | HB | CC | 2D129 | |
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.Swivel joints in hose lines | HB | CC | 2D129 | |
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.Arrangements for treating drilling fluids outside the borehole [2006.01] | HB | CC | 2D129 | |
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..for treating dust-laden gaseous fluids [7] | HB | CC | 2D129 | |
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.Controlling or monitoring pressure or flow of drilling fluid, e.g. automatic filling of boreholes, automatic control of bottom pressure (valve arrangements therefor E21B 21/10) [3] | HB | CC | 2D129 | |
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.Valves arrangements in drilling-fluid circulation systems [2006.01] | HB | CC | 2D129 | |
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.using drilling pipes with plural fluid passages, e.g. closed circulation systems [2006.01] | HB | CC | 2D129 | |
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.using liquids and gases, e.g. foams [3] | HB | CC | 2D129 | |
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.using gaseous fluids (E21B 21/14 takes precedence) [2006.01] | HB | CC | 2D129 | |
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.Preventing exhaust air from the drill motor from blowing-off towards the working face [7] | HB | CC | 2D129 | |