TOP DRIVE DRILLING SYSTEM
http://data.posccaesar.org/rdl/RDS1287915601
<http://rds.posccaesar.org/2008/02/OWL/ISO-15926-2_2003#ClassOfInanimatePhysicalObject>
2009.12.02
mvsen
A 'well drilling system' and an 'artefact' in which the motor which turns the drill string is connected to the upper end of the string and moves downwardly with the drill string during the drilling operation.
RDS1287915601
TOP DRIVE DRILLING SYSTEM
TOP DRIVE DRILLING SYSTEM
Recorded
mvsen
RDS