Item | Name | Definition |
1 | Stabilizer (blade) diameter | diameter at largest cross section |
2 | Wrap angle | total angular extent of full blade diameter, summed across all blades |
3 | Crown length | axial extent of full blade diameter |
4 | Neck | region at upper and lower end of stabilizer containing connection |
5 | Blade | enlarged region intended to make contact with the borehole |
6 | Core | the continuous member of a welded-blade stabilizer |
7 | Integral-blade stabilizer | stabilizer made from single piece of material |
8 | Welded-blade stabilizer | stabilizer made from welding blades to a core |
9 | Near-bit stabilizer | stabilizer above the drill bit |
10 | String stabilizer | stabilizer among the drill collars |

Measurement Definitions for Stabilizers





