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Oil and Gas Well Drilling and Servicing eTool
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Cellar

CellarA pit in the ground to provide additional height between the rig floor and the well head to accommodate the installation of blowout preventers, ratholes, mouseholes, and so forth. It also collects drainage water and other fluids for
disposal.


 


 
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Occupational Safety & Health Administrations
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Washington, DC 20210		 Page last updated: 02/26/2009