by | Mar 26, 2021 | Annular BOPs

“What is an annular blowout preventer?” If you’ve worked in a drilling site, someone has probably asked you that question. 

Simply put, an annular blowout preventer helps keep the oil well sealed to prevent disastrous blowouts. It operates differently from the ram blowout preventers. In this post, we’ll look at how the annular BOP works.

What is an annular blowout preventer? This type of BOP can help to prevent disastrous blowouts in a drilling site. Find out how the system works. #BOPProducts Share on X

The annular blowout preventer is responsible for sealing the space around the drill pipe (annular space). It achieves that by regulating the airflow to prevent mud, ensuring that the system operates efficiently. The annular BOP is usually placed on top of the BOP stack for efficient airflow control in the system.

How does an annular blowout preventer work, and how do you use them? 

What is an Annular BOP?

An annular blowout preventer is a large valve designed to seal, control, and monitor oil and gas wells. These BOPs have elastomeric sealing, a valve resembling a large rubber donut, which mechanically squeezes inward to seal the drill string, casing, open hole, or pipe. The valve rotates during drilling to maintain a seal around drill pipes.

Annular vs RAM Blowout Preventer

The annular blowout preventer performs several functions in drilling operations. It seals the annular space between the tubing, casing, and drill pipes. It also helps maintain the seal when the casing, tubing, or drill pipes are out of the drill hole. Unlike the RAM blowout preventers, the annular BOPs can seal various pipes of different sizes. 

Other Ram Types

The primary function of a Ram BOP is to seal the well and prevent oil from escaping uncontrollably. It also prevents unwanted materials from building up and exploding in the system when drilling. That ensures the safety of workers in the drilling site.

Here are the other Ram types that serve the same purpose.

  • Choke Manifolds: A system of pressure sensors that control fluid flow in various directions.
  • Blind RAMs: Are designed to close over any portion in the well, whether a pipe is present or not.
  • Choke Line Valves: Direct mud to the choke manifold when a kick occurs. They help to control the flow of fluids in the well.
  • Kill Line Valves: Act as the backup to the standard drill pipes. 

Choose BOP Products

What is an annular blowout preventer? When asked that question, you’ll have the answer. If you have a drilling project, consider getting a blowout preventer from a reputable company like BOP Products. We offer high-quality products and services to ensure the safety of workers.

Contact us to learn how other types of blowout preventers (BOPs) operate.

Related Posts

A Snapshot Into Our Most Recently Completed Job: Annular BOPs

A Snapshot Into Our Most Recently Completed Job: Annular BOPs

The best part about our job is seeing a job when it is complete. We take pride in knowing that we deliver a quality product promptly. Our most recent job included an annular BOP, manifolds, and other API equipment. Let’s look more into these pieces of oil and gas...

A Birds-Eye-View of Our BOPs

A Birds-Eye-View of Our BOPs

If you want to acquaint yourself with drilling operations, you must understand how BOPs work. As essential equipment in drilling sites, blowout preventers play a significant role in preventing the uncontrollable flow of oil and gas from the well. They have sets of...

BOP Products Sent a Remanufactured Annular BOP to Mexico

BOP Products Sent a Remanufactured Annular BOP to Mexico

BOP Products is proud to offer high-quality remanufactured blowout preventers to companies around the world. Oilfield experts trust our equipment to be reliable for years to come. Our most recent sale of a remanufactured annular BOP to a Mexican oil company...

Speak With a BOP Expert Today

Have a question about our blowout preventer products and services? Speak to our oil and gas experts who value customer relationships and want to help your company succeed through training, timely repairs, and custom solutions. Contact our team today.

Contact Us