![]() ![]() 6.2.2 Bore All kelly bores shall be gauged with a drift mandrel 3,05 m (10 ft) long minimum. 6.2 Dimensional gauging 6.2.1 Drive section The drive section of all kellys shall be gauged for dimensional accuracy, using a sleeve gauge conforming to Table 8 and Figure 4. 6 Square and hexagonal kellys 6.1 Size, type and dimensions Kellys shall be either square or hexagonal, and conform to the sizes and dimensions in Tables 4 and 5 and Figure 2 for square kellys, or Tables 6 and 7 and Figure 3 for hexagonal kellys. ![]() Designations shall be used to indicate verified performance as follows: a) successful gas-tight sealing supplemental testing: “Gas-tight” b) H 2 S trim supplemental requirement: “H 2 S trim”. API SPEC 7-1-2006 pdf free download.Specification for Rotary Drill Stem Elements.ĥ.7.5 Supplemental marking Supplemental performance verification testing information shall be applied in a separate milled recess.
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