Blind Shear Ram
Pipe rams close around a drill pipe restricting flow in the annulus ring shaped space between concentric objects between the outside of the drill pipe and the wellbore but do not obstruct flow within the drill pipe.
Blind shear ram. Shearing blind rams are designed to cut through drill pipe and shut in a well control situation. The blind ram bop should be equipped with the safety cover that does not hold back remote control. Sbr shearing blind ram blind shear ram single piece shear ram subsea drilling subsea production created date.
Video cameron bop rams cameron provides the most comprehensive range of bop rams and ram packers in the industry for managing well control events including rams for shearing high strength casing and drill collars variable bore sealing and high temperature applications. In what turned out to be one of the most viewed animations at otc we examine both animation and live shop video demonstrating the proper functionality of bl. It has no opening for the tubing.
Blind shear ram it cuts through the drill string to seal a wellbore even when it is occupied by the string. Shear ram it uses the shearing technique to cut the hardened steel through the drill string. Rams or ram blocks are of four common types.
A blowout preventer closing element fitted with hardened tool steel blades designed to cut the drillpipe or tubing when the bop is closed and then fully close to provide isolation or sealing of the wellbore. Cameron 18 3 4 in tl offshore ram type bop with broadshear ram bonnets. A shear ram is normally used as a last resort to regain pressure control of a well that is flowing.
Blind ram it used to close off a well when there is no drill string or tubing. Pipe blind shear and blind shear. Api standard 16ar standard for repair and remanufacture of drill through equipment first edition april 2017.
Blind shear ram closing and sealing component in a ram bop that first shears the tubular in the wellbore and then seals the bore or acts as a blind ram if there is no tubular in the wellbore. Once the pipe is cut or sheared by the shear rams it is usually left hanging in the. A thick heavy steel component of a conventional ram blowout preventer in a normal pipe ram the two blocks of steel that meet in the center of the wellbore to seal the well have a hole one half of the hole on each piece through which the pipe fits the blind ram has no space for pipe and is instead blanked off in order to be able to close over a well that does not contain a drillstring.
Either close the pipe ram bop or the blind ram bop. Variable bore rams inc. Enhanced reliability for drilling and production operations keywords.
Tertiary barrier shear rams and blind rams. During drilling operation only the driller knows whether there is drill string in the borehole.
