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U, UL and UM BOP DSI and DVS Shear Rams<br />
Dual string interlocking (DSI) shear rams and double V shear (DVS) rams are also available for the U,<br />
UL and UM BOPs. The interlocking feature of these rams provides the capability of shearing wireline<br />
and braided cable with zero tension in the line, while still maintaining a seal. The blades are interlocked<br />
by using pockets in the lower ram and arms on the upper ram to prevent any gap between<br />
blade surfaces.<br />
DSI rams are similar to standard DS shear rams except for the interlock feature. DSI shear rams are capable<br />
of shearing tubing, small pipe, braided cable, slickline and solid sinker bar.<br />
DVS rams are similar in design to the standard shearing blind rams except that both blades are V<br />
shaped and interlocked. The DVS rams are capable of shearing tubing, small pipe, braided cable and<br />
slickline.<br />
Top Seal<br />
Side Packer<br />
Upper Shear Ram<br />
Upper<br />
Ram Body<br />
Lower Ram Body<br />
Side Packer<br />
Lower Shear Ram<br />
Blade Seal<br />
Upper Shear Ram<br />
Dual String Interlocking (DSI) Shear Rams<br />
Top Seal<br />
Lower Ram Body<br />
Upper<br />
Ram Body<br />
Side<br />
Packer<br />
Double V Shear (DVS) Shear Rams<br />
Blade Packer<br />
SD 034613<br />
TC1001 52 © <strong>2002</strong> Cooper Cameron, Cameron Division
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