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This page displays all 「FI」 in main group E21B41/00. |
HB:Handbook | ||||
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CC:Concordance | |||||
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Equipment or details not covered by groups E21B 15/00-E21B 40/00 | HB | CC | 2D129 | |
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.in situ inhibition of corrosion in boreholes or wells [2006.01] | HB | CC | 2D129 | |
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.Manipulators for underwater operations, e.g. temporarily connected to well heads [2006.01] | HB | CC | 2D129 | |
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.Work chambers for underwater operations, e.g. temporarily connected to well heads [2006.01] | HB | CC | 2D129 | |
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.Underwater guide bases, e.g. drilling templates; Levelling thereof [7] | HB | CC | 2D129 | |
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.Guide posts, e.g. releasable; Attaching guide lines to underwater guide bases [7] | HB | CC | 2D129 | |