Comprehensive Guide to Choke and Kill Manifold System

Choke Manifold Valves Texas

Choke and kill manifold systems are integral to the oil and gas industry. It manages the well pressure fluctuations and prevents the well-bore kick or influx. They have seen a spike in demand thanks to strict government regulations and environmental and public safety concerns.

Let’s explore more about the choke and kill manifold system.

What is Choke and Kill Manifold System?

The choke and kill manifold system is an assembly of fittings, lines, valves, and adjustable chokes. It offers different routes to control the flow of oil, gas, and mud from the annulus during the kick (in drilling).

The choke and kill manifold system controls pressure and flows during the offshore and onshore well testing and production operations. When this system is installed, the operator can efficiently manage the pressure and flow speed that enters the processing equipment. It further helps control production and lowers the risk of equipment damage. During the well test process, the wellheads are attached to the choke manifold to control the pressure and permit downstream flow for the test components.

What are the Applications of the Choke and Kill Manifold System? 

The oil and gas industry primarily employs the choke and kill manifold system. However, you can also find the use of a choke manifold drilling rig in the trenchless industry. The system also finds its application in the drilling operations that utilize drilling mud.

The choke and kill manifold system is also used to bring down the pressure from the wellhead. This assembly consists of high-pressure valves with a minimum of two chokes. The choke can be in fixed, adjustable design, or a combination. This redundancy comes in handy when one choke is out of service, and the flow is directed with another choke to avoid production downtime. The choke valve comprises outer board and in-board valves with pressure gauge, manual and hydraulic chokes.

What is the Function of the Choke and Kill Manifold System?

If the hydrostatic head of the drilling fluid is inadequate to regulate the subsurface pressure, formation fluid will flow in the well. Back pressure is applied to control to maintain the well control. It is then by routing the returns through adjustable chokes till the well flow condition is fixed. The choke is connected to the blowout preventer through lines, fittings, and valves. It either offers an alternative flow route or prevents the flow. This entire equipment assembly is termed a “choke manifold.”

The primary function of the choke and kill manifold system can be listed as follows:

  • The primary function of the choke and kill manifold system is to enhance the process safety on-site.
  • The oil and gas industry uses the choke and kills manifold system to control the pressure of the drilling fluid ejected at the cutting head.
  • The assembly choke is specially engineered to restrict the flow per the requirement. Thus, playing the most crucial part in the manifold. By adjusting the valves, the flow is regulated or restricted.
  • Over the various period, different tests require different flow rates. Some tests may need the flow rate altered over a defined time frame. The choke and manifold system can help the operator effectively control these flow rates per the test requirement.
  • The choke and kill manifold system can also minimize or prevent the debris, sand, and other materials from entering the well. It is achieved by reducing the flow rate and flow speed.
  • The choke and kill manifold industry is beneficial for the oil and gas industry. It also finds its use in the trenchless industry. It has also proven helpful in drilling applications that include drilling mud and fluid. They also find their application in onshore and offshore production operations and well-testing.
  • The choke and kill manifold system ensures downstream pressure fluctuations do not influence the flow rate and downhole pressure at the well.

What are the Primary Components of Choke and Kill Manifold System?

The two primary components of choke and kill manifolds systems are:

  • Chokes: It is the assembly of choke valves that are designed to restrict the flow when required.
  • Gate Valve: It is designed to control the fluid flow from opening to closing. However, they are not explicitly designed to restrict the flow.

The Bottom Line

The choke and kill manifold system is necessary equipment in the oil and gas industry. Connect with a trustworthy company to purchase or rent them.