How to make a spray preventer? What are the methods available?

The blowout prevention system (BOPS) of oil or natural gas wells is used to prevent potential blowouts, known as blowouts, in which high-pressure, uncontrolled fluids from the wellbore reservoir force pipelines (such as drill pipes or wellbore casings), tools, and drilling fluids to prevent catastrophic events. View of the borehole. Blowout poses significant safety risks to drilling personnel, drilling rigs, and the environment, and is costly.

Bops typically have a plunger that can be hydraulically driven to seal the borehole. In some cases, these plungers have hardened steel shears used to pass the drill string through the borehole.

One of the issues with many hydraulic actuation plungers is the need for a large amount of hydraulic pressure to resist pressure in the wellbore and move the plunger while shearing the drill string.

Another issue with hydraulic actuation of pistons is that oil pressure is typically generated by the preventer, and damage to the hydraulic lines that transmit this hydraulic pressure may make the preventer prone to failure. In addition, the relatively slow closing action of the plunger in the flowing wellbore leads to shear and erosion of the sealing surface, which may cause problems with the shear of drilling tool joints, drill collars, large-diameter tubing, eccentric drill strings, etc. under high pressure. The piston is driven by hydraulic pressure.

Generally speaking, when the plunger seals the drilled hole, it indicates that the wellbore is under control and can be withdrawn or drilled again.