Rotary BOP
Rotary blowout preventer is a necessary equipment for underbalanced drilling, geothermal drilling and coalbed methane drilling. It acts as a packer between the annulus and the drill string, provides safe and effective pressure control, and guides the fluid returning from the wellbore away from the wellhead. The development of this technology expands the application scope of underbalanced drilling technology, such as closed circuit circulation, drilling while spraying, MWD, borehole testing, reverse circulation and nitrogen injection. The rotary blowout preventer is mainly composed of rotating assembly, shell and buckle barrel. The rotary assembly is mainly composed of square tile assembly, central tube, bearing, seal, rubber core, etc.
Basic parameters
Nominal diameter: 11 ", 13-5 / 8"
Static sealing pressure: 14MPa, 35MPa
Dynamic sealing pressure: 7MPa, 17.5MPa
Number of rubber cores: 1, 2
Temperature grade of metal materials: t-0, T-20, t-75
Suitable media: water, oil, natural gas, H2S
Executive standard: API 16A 3rd