rig

    Article

    The basic structural equipment used in oil, natural gas, or water well drilling operations. Rigs are massive scaffolds used in a variety of procedures that require penetrating the surface of the Earth's crust. For example, rigs are used to drill holes and to install pipes, tunnels, or underground utilities. They are also used in studies and projects that require testing sub-surface soil, groundwater, and mineral deposits.

    Photo Credit

     
    "Drilling rig, Elk City, Oklahoma, November 19, 2008" by Travel Aficionado is licensed under CC BY-NC.

    Published Works
    References

    Freudenrich, Craig, and Jonathan Strickland
         2001   HowStuffWorks.com: How Oil Drilling Works.
             http://science.howstuffworks.com/environmental/energy/oil-drilling.htm,
             accessed November 18, 2014.