Oil and Gas Well Drilling and Servicing eTool
Back to Illustrated Glossary

Substructure

SubstructureThe foundation on which the derrick or mast and usually the drawworks sit; contains space for storage and well control equipment.*


*This is an abridged version of the Dictionary of Petroleum Terms used with permission from PETEX®, The University of Texas, at Austin. All rights reserved © PETEX 2001.