Wellhead

https://www.wikidata.org/wiki/Q7981274

Field Hierarchy

Parent
Biology 35.7M papers	Engineering 24.7M papers	Geology 9.4M papers	Mechanical engineering 5.4M papers
Paleontology 5.4M papers		Petroleum engineering 486k papers
Current
Wellhead 7,612 papers
Child

Trends

Notes

History