Ram Type BOP

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The ram blowout preventer uses hydraulic pressure to push the well sealing components—two rams with rubber cores—from the left and right sides to the center of the wellbore to close the wellhead, so it is called the ram blowout preventer.

Ram blowout preventer function

1) When there is a drilling tool in the well, the annular space at the wellhead can be closed with a semi-sealed ram corresponding to the size of the drilling tool;
2) When there is no drilling tool in the well, the fully-sealed ram can fully seal the wellhead;
3) When the drilling tool in the well needs to be cut off and the wellhead is fully sealed, the shear ram can be used to cut the drilling tool in the well and fully seal the wellhead;
4) The ram of some ram blowout preventers is allowed to bear load and can be used to hang drilling tools;
5) There are side holes on the shell of the ram blowout preventer, which can be used to throttle and relieve pressure;
6) The ram blowout preventer can be used for long-term well closure;

Ram blowout preventer is mainly composed of shell, side door, oil cylinder, cylinder head, piston, piston rod, locking shaft, seals, ram and so on. Its working process is to use hydraulic pressure to push the piston to drive the ram to close or open, so as to close or open the wellhead, so as to achieve the purpose of sealing and opening the well.

The type of the ram BOP can be divided into four types: full sealing, semi sealing, variable diameter and shearing ram, which are used to realize well sealing under different conditions. The semi sealing ram can seal the corresponding drill pipe and tubing When there is no pipe in the well, the fully sealed ram can completely seal the wellhead, and the shear ram can cut off the drilling tool under special circumstances. In addition, the flange outlet on the side of the casing can be used for drilling fluid circulation and throttling and killing operations.

According to the number of rams, it can be divided into single ram BOP, double ram BOP, triple ram BOP;
According to the function of the ram, it can be divided into full-sealed ram BOP, semi-sealed ram BOP, shear ram BOP, variable ram BOP;
According to the locking method, it can be divided into manual locking ram BOP, hydraulic locking ram BOP;
According to the side door switch mode, it can be divided into rotary side door ram BOP, linear motion side door ram BOP;

The simple, compact design of the U-BOP manufactured by HBRS makes it the most widely deployed type of BOP in both onshore and offshore operations.

The HBRS BOP Operating System is designed to provide fast and reliable shutoff around pipe or casing in all standard well control applications. The easy-to-operate system is a pressure actuated and features a hydraulically operated locking mechanism that keeps the plunger closed without continuous actuation pressure.

All components of the HBRS Ram BOP are precision machined and fully interchangeable with U-Types from major OEMs. The overall dimensions are the same, and stacks can be easily swapped out without any major rework to the rig.

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Drilling a well is not an easy task for many, and a successful, safe process requires safety equipment like blind shear rams. Knowing what type of blowout preventer to use when covering a wellbore can prove a daunting task even for the slightly experienced engineers. A blind shear ram is always a significant resort to regaining pressure control of a well flowing uncontrollably.

A blind shear ram is the thick, heavy steel component of a ram blowout preventer (BOP). Blind shear rams are always fitted with hardened tool steel blades designed to cut the tubing or the drill pipe when the BOP is closed. It then fully closes to isolate or seal the wellbore completely. Here&#;s what you should know about shear rams. 

What They&#;re Used For & How They Work

As an oilfield operator, you need to pick the right blind shear ram BOP to maintain safety for everyone on the drilling site. When there is increasing pressure in the wellbore blind shear rams, help to contain the pressure.

They are key tools for the safety in the oilfield as they help control any additional pressure that could cause ruptures and accidents to workers. You can never start an oil well drilling process without having ideal blind shear rams in place for the procedure.

When installing the blind shear rams, you will have to fit them using hardened tool steel blades to hold them firmly in position. With the perfect fit, the shear rams will easily cut the drill pipe or openings for tubing when the BOP stack closes. When it completely closes, the blind shear ram isolates and seals off the wellbore.

Even though it is important to have a blind shear ram in your drilling plan, they only come to use when other BOPs have failed. When the well is overflowing and pressure is rising, a blind shear ram will do the perfect job of bringing things back to order.  

Blind Shear Ram Specifications

When choosing a blind shear ram for your well-drilling project, you have to know which special features of the blind shear ram will fit your project needs. Looking for the blind shear ram specifications would help you settle for a perfect choice.

Consider the bore rim size, which normally ranges from 7-1/16&#; to 21-1/4, before you purchase one for your well. You can always consult with a specialist before settling for a purchase. 

Conclusion

The importance of blind shear rams in your well-drilling project cannot be overstated. Once you have landed on a decision to pick specific blind shear rams, you must know how they work and how to install them in your wellbore. You can rent a BOP ram for your project today.

Contact us to purchase or rent blind shear rams for your oil and gas drilling project.

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