Mill bearing capacity BOP stack

The pressure grade is lower, but the bore is bigger. The mill pipe is mounted on the sealing ram of bearing capacity BOP, the weight can reach to 80 tons. The BOP can close its dealing ram at anytime. As the same time, there is a spool which is connected to 13-3/8” surface casing, the small flanges on two sides and collar clamp are used for kill manifold, injecting cement and relief. The total height is 1000mm, it is convenient for mounting. We adopt new model structure for convincing exchanging the rams, the oil line will not have leakage. It not only bears weight and seals mill pipe, but also seals drilling pipe.