Drilling rig

https://www.wikidata.org/wiki/Q12688575

Field Hierarchy

Parent
Engineering 25.6M papers	Materials science 19M papers	Mechanical engineering 5.6M papers	Metallurgy 5M papers
Drilling 130k papers
Current
Drilling rig 2,182 papers
Child
Draw-works 0 papers		Submersible drilling rig 0 papers

Trends

Notes

History