WELLBORE DRILLING
A class with identifier
http://staging4.data.posccaesar.org/iso/15926-4/rdl/RDS17730302
| Definition | <WELLBORE DRILLING> is the <Activity> of drilling by rotating a drill bit on bottom of a wellbore | 
| ISO number | 24090 | 
| Note | Includes drilling of side tracks if the purpose are to reach a new geological or reservoir objective. As defined by the Norwegian Oil Directorate in the "user guide for the Common Daily drilling Report System (CDRS) Report number OD-95-30" | 
| RDS number | RDS17730302 | 
| Source | Activity or Event |