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Protection string

This is set deeply enough to protect the borehole from caving-in in loose formations frequently encountered at shallow depths, and protects the freshwater sands from contamination while subsequently drilling a deeper hole. In case the conductor string has not been set, the surface casing is fitted with casing head and BOP. [Pg.1128]

If the temperature is not to be raised above 100° the tube is wrapped in a towel and suspended in a specially protected water bath by means of a string or wire. [Pg.38]

See other pages where Protection string is mentioned: [Pg.1128]    [Pg.190]    [Pg.190]    [Pg.190]    [Pg.190]    [Pg.190]    [Pg.196]    [Pg.196]    [Pg.200]    [Pg.1128]    [Pg.190]    [Pg.190]    [Pg.190]    [Pg.190]    [Pg.190]    [Pg.196]    [Pg.196]    [Pg.200]    [Pg.54]    [Pg.180]    [Pg.49]    [Pg.2427]    [Pg.270]    [Pg.481]    [Pg.907]    [Pg.910]    [Pg.850]    [Pg.1180]    [Pg.1233]    [Pg.164]    [Pg.574]    [Pg.91]    [Pg.315]    [Pg.481]    [Pg.131]    [Pg.134]    [Pg.149]    [Pg.159]    [Pg.159]    [Pg.289]    [Pg.1]    [Pg.147]    [Pg.200]    [Pg.485]    [Pg.225]    [Pg.225]    [Pg.243]    [Pg.324]    [Pg.469]    [Pg.148]    [Pg.147]    [Pg.231]    [Pg.96]    [Pg.42]    [Pg.154]    [Pg.238]    [Pg.239]   
See also in sourсe #XX -- [ Pg.1128 ]



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