BLOW OUT PREVENTERS AND BOP CONTROL UNITS

الوصف

Annular blowout preventers uses tapered packing elements to seal the drill tools of various sizes and shapes and close an empty hole. FH type annular BOP consists of top head, piston, body and packing unit. When the hydraulic oil that is pumped into the lower cylinder pushes a piston upward, the piston compresses a packer towards the center line of preventer and the inner surface-tight seal. When the hydraulic oil that is pumped into the upper cylinder pushes a piston download, the packer expands and returns to the original shape by means of its own elastic action. FH type annular BOP can close the annular space around the drill pipe and also close the open hole under the working pressure to prevent the well from blowing out . FZ type ram BOP consists of body, bonnet door, cylinder, piston, piston rod, lock-stem, cylinder bonnet and ram assembly. When high-pressure oil is pumped into left and right closing chambers, it pushes the piston and the rod, and makes left and right ram assemblies move to the well bore center along with the guided plate, and thus finish the well bore closing. FZ type ram BOP has the half-closing rams of various bore sizes, which can be used to close the annular space around the drill pipe. The blind rams are used for closing the open hole. BOP and drilling spool are manufactured and tested in accordance with the latest API *6A standard and the quality standard of ISO ***1. Main pressurecontaining parts are cast with high alloy steel, special heat treated and strictly NDT inspected. No doubt, it complies with NACE MR- ****5.