Overview of Ram BOP

A ram BOP is a blowout preventer that is samiliar in operation to a gate valve. Ram BOPS use a pair of steel plungers that oppose each other (rams). The rams can extend towards the wellbore's center to restrict the flow of fluids or retract open to permit the flow.

Ram BOP can be used to quickly seal the top of the well in the event of a well control event (kick). A ram BOP consist of two halves of a cover, and the covers are constructed of steel for strength. Pipe Rams are installed into ram BOP, and pipes rams can effectively seal a limited range of pipe diameters. There are variable-bore rams available also, and the variable-bore rams are designed to seal a wider range of pipe diameters. Shear Rams Blocks are used to share drill pipes. The various ram blocks can be changed in the ram BOP, and this will enable the well drilling operation team to optimize BOP configuration for the particular hole section or operation in drilling progress.

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 seal the wellhead, so it is called the ram blowout preventer. The working process of the ram blowout preventer is to use the hydraulic pressure to push the piston to drive the ram to close or open, so as to close or open the wellhead to achieve the purpose of sealing and opening the well.

The ram blowout preventer is used to prevent well kicks and blowouts that may be caused by formation high-pressure gas entraining crude oil and water during well completion operations, well workover operations, tripping and lowering tubing operations, oil production, oil testing, and drilling in the oil field. It is installed at the wellhead Safety combined sealing device. It is a wellhead safety device for uphole operations and when downhole tools are replaced. When an abnormal situation occurs downhole, turn the lead screw to push the half-sealed ram to close the annular space of the sealed oil casing and fully seal it at the wellhead, so as to achieve the purpose of safe production and protection of the surrounding environment. Ram blowout preventer can be used alone or in combination with double ram blowout preventer, and can also be used in conjunction with annular blowout preventer.

Ram blowout preventer is mainly composed of shell, side door, oil cylinder, cylinder head, piston, piston rod, locking shaft, seals, ram and so on.

The ram 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 special cases, the shear ram can cut off the drilling tool. In addition, the flange outlet on the side of the casing can be used for drilling fluid circulation and throttling and killing operations.

Ram BOP consists of

Ram BOP mainly consists of BOP body, hydraulic open and close ports, bonnet, rams, bonnet seals, ram guide pins, connecting rod seals.

Ram BOP has several types of rams, such as Pipe Rams, Shear Rams, Blind Ram and Blind Shear Ram.

Locking Screw Housing consists of operating piston, locking screw, bonnet bolt, bonnet, ram change piston, ram change cylinder, operating cylinder, intermediate flange, plastic packing fitting, lifting eye. 

1. The Ram BOP mainly consist of the main body, the side door assembly and the gate assembly to form a closed inner cavity.

2. The side door assembly is composed of locking screw, locking shaft, "O" type rubber sealing ring, thrust ball bearing and gland.

3. The gate assembly is composed of front seal, top seal, gate body and hexagon socket bolts.

Ram BOP Classification

1. According to the number of rams, it can be divided into single ram BOP, double ram BOP, triple ram BOP.

2. According to the function of the ram, it can be divided into full-sealed ram BOP, semi-sealed ram BOP, shearing ram BOP, variable-diameter ram BOP. If you intend to invest in the pipe rams, the variable-bore pipe rams will be the best option to pick. It can accommodate various pipe diameters.

3. According to the locking method, it can be divided into manual locking ram BOP, hydraulic locking ram BOP.

4. According to the side door switch mode, it can be divided int rotary side door ram BOP and linear motion side door ram BOP.

Features of Ram BOP

1. The pressure-bearing parts and pressure-controlling parts are forgings, with dense structure and high strength. They have good strength and impact toughness, and are safer and more reliable to use.

2. The gate cavity is an elliptical structure, which reduces the stress of the shell and improves the bearing capacity of the shell.

3. The seal of the middle flange adopts combined seal, the switch of the middle flange is realized by hydraulic pressure, and the replacement of the gate plate is quick and convenient

4. The replacement gate can be replaced by opening the side door assembly with oil pressure, which reduces the labor intensity of workers and improves work efficiency.

5. The shear ram can be equipped with tandem booster to achieve the same function and smaller volume. It can also be equipped with a large  tandem booster, which is simple in structure, safe and reliable. Equipped with tandem boosters, compared with the traditional ram BOP with shearing ram, the function remains the same and the volume is smaller.

6. We have large quantity of pipe ram, shear ram, blind ram, blind shear ram and variable bore ram in stock. The ram has abundant reserves and adopts self-sufficient sealing.

7. The manual locking device is a standard configuration, once the hydraulic pressure is lost, it can ensure that the gate remains closed. Manual locking device can ensure that ram remains closed once hydraulic loss happened.

8. Manual and hydraulic locking devices and auxiliary oil cylinders can be flexibly arranged in the corresponding positions according to the needs of customers, and are easy to exchange

9. The inside of the anti-low temperature blowout preventer shell can be processed to make the steam flow inside the blowout preventer and radiate heat (for customers to choose)

10. All parts in contact with the well fluid inside the high-sulfur-resistant blowout preventer are surfacing with high-nickel-based alloys, which can achieve the highest level of anti-H2S and CO2 effects (for customers to choose)

11. Our company can produce a full range of U-shaped structure products and their accessories, and the accessories are interchangeable.

12. Available with a wide variety of sizes and end connections.

Applications of Ram BOP 

1. When there are drilling tools in the well, the semi-sealed ram can close the annular space between the drill pipe, casing and tubing, and is equipped with rubber core (specific specifications are equipped according to customer requirements)

2. When there is no drilling tool in the well, the wellhead can be fully sealed with the fully sealed ram;

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 rams of some ram BOPs allow load-bearing 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 sealing.

7. In order to effectively control formation pressure, it can be used in conjunction with kill and choke manifolds to achieve balanced pressure drilling.

8. Special operations such as well killing and well flushing can be realized with the wellhead closed.

Price of Ram BOP

The Ram BOP Price will change randomly with factors such as production cost, transportation cost, international situation, exchange rate, market supply and demand of raw materials. Sino Mechanical aims to provide you with high quality and best price Ram BOP. If you are looking for sing Ram BOP, double Ram BOP or Ram BOP spares, please kindly contact us to get the latest Ram BOP price.

Ram BOP Supplier

Sino Mechanical, as a Ram BOP manufacturer, has more than 20 years extensive experiences in the performance, application and cost-effective manufacturing of Ram BOP. We are global Ram BOP supplier. We offer a wide range of drilling equipment and have Ram BOP for sale. We also provide OEM services. We design, manufacture, and sell Ram BOP for your drilling applications. If you want to know latest Ram BOP price, don’t hesitate to contact us anytime. We will get back to you within 24 hours.