Description
Blind shear ram assembly
What is a BOP Blind Shear ram assembly
A blowout preventer (BOP) 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. A shear ram is normally used as a last resort to regain pressure control of a well that is flowing. Once the pipe is cut (or sheared) by the shear rams, it is usually left hanging in the BOP stack, and kill operations become more difficult. The joint of drillpipe or tubing is destroyed in the process, but the rest of the string is unharmed by the operation of shear rams.
What is the material of blind Shear Ram assembly（BSR）
Rubber： NBR or HNBR
Ram Block：4130,42CrNiMo or F22
If the concentration of hydrogen H2s sulfide is higher than 5%, HNBR and F22 should be used,but the shear Knife need to be 42CrNiMo
Where is the VBR used in
It is used in shaffer BOP 13 5/8"-5000PSI,13 5/8"10000PSI double Ram BOP and Single Ram BOP,shaffer type BOP and Cameron U type BOP.
Who Use this Blind shear Ram assembly（BSR）
Drilling rig in Kuwait,UAE,Iran,Saudi Arabia, Qatar, Libya, the United States
Who can manufacture the Blind shear Ram assembly（BSR）
Cangzhou Fengliang Petroleum Machinery Co.,Ltd Can produce it
