Revision 74, 0.9 kB
(checked in by ryland, 14 years ago)
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1 | BitDullCode |
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2 | These values represent a classification of a drill bit based on its reason for being declared inoperable, as originally defined by the IADC. |
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3 | BC - Broken Cone |
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4 | BT - Broken teeth/cutters |
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5 | BU - Balled Up |
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6 | CC - Cracked Cone |
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7 | CD - Cone Dragged |
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8 | CI - Cone Interference |
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9 | CR - Cored |
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10 | CT - Chipped Teeth |
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11 | ER - Erosion |
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12 | FC - Flat Crested Wear |
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13 | HC - Heat Checking |
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14 | JD - Junk Damage |
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15 | LC - Lost Nozzle |
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16 | LN - Lost Nozzle |
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17 | LT - Lost Teeth/Cutters |
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18 | NO - No Dull/No Other Wear |
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19 | OC - Off-Center Wear |
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20 | PB - Pinched Bit |
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21 | PN - Plugged Nozzle |
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22 | RG - Rounded Gauge |
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23 | RO - Ring Out |
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24 | SD - Shirttail Damage |
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25 | SS - Self-Sharpening Wear |
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26 | TR - Tracking |
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27 | WO - WashOut on Bit |
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28 | WT - Worn Teeth/Cutters |
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29 | |
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30 | unknown |
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31 | |
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32 | The value is not known. This value should not be used in normal situations. All reasonable attempts should be made to determine the appropriate value. Use of this value may result in rejection in some situations. |
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