Ram BOP (Imperial) 2FZ(FZ)54-14

1)Scope of Capability

FZ54-14 DOUBLE Ram BOP is capable for these wells, which pressures are not more than 14MPa. It can work separately or with other BOP stack. FZ54-14 Ram BOP can open/close rams with hydraulic as well as manual in case that there is no compress gas or electric. Be sure to close well manually when the well should be closed for a long time.

It has several pipe rams to seal 5, 5 1/2, 7, 9 5/8, 13 3/8drilling tools (or pipes) and the wellhead. When the well is closed, the manifold can be connected to its outlet on the shell to make special operating such as mud circulation or throttling and blowing out or other else; it can suspend pipes with flat shoulder joint in emergency.

2)Main Structure and Principle

FZ28-70DY Ram BOP has two types: single ram BOP and double ram BOP. Generally, the single ram BOP adopts top thread and bottom flange connection while the double ram BOP adopts top and bottom thread connection (also designing according to customers’ requirements).

It is approximately assembled with body, bonnet, cylinder, cylinder bonnet, piston, rod, locking shaft, sealer and ram. Its working principle is: the high pressure oil enters close chambers of the left and right cylinders and push piston and rod to move the left and right ram assembly along guide braces in ram blocks to the wellhead center.

As the left contacts the right, the ram assembly is stressed by the foreign force, and rubber is extruded to deform to seal the well. While high-pressure oil enters opening chambers of the left and right cylinders, both ram assemblies will move off the well center to open the well.