Shear ram:

Shear rams are used in floating offshore drilling operations to provide a quick method of moving the rig away from the hole when there is no time to trip the drill stem out of the hole.

Terms Related to Shear ram

• Ram

  The closing and sealing component on a blowout preventer. One of three types--blind, pipe, or shear--may be installed in several preventers mounted in a stack ...

• Shear ram preventer

  A blowout preventer that uses shear rams as closing elements.

• Ram blowout preventer

  A blowout preventer that uses rams to seal off pressure on a hole that is with or without pipe. Also called a ram preventer.

• Change rams

  To take rams out of a blowout preventer and replace them with rams of a different size or type. When the size of a drill ...

• Pseudoplastic

  Having the capability of changing apparent viscosity with a change in shear rate. Pseudoplastic fluids gain viscosity when subjected to a decrease in shear rate, ...

• Plug flow

  A fluid moving as a unit in which all shear stress occurs at the pipe wall and hole wall. The stream thus assumes the shape ...

• Blowout preventer

  1. One of several valves installed at the wellhead to prevent the escape of pressure either in the annular space between the casing and drill ...