Oil And Gas Production Uses Mandrels and Gas Lift Valves

A gas lift system typically necessitates the installation of valves in the production tubing down the well.

These valves open sequentially, allowing gas to enter the tubing and force fluid to the surface. A mandrel is the piece of hardware that connects the valve to the tubing.

There are two types of mandrels, and which you choose can affect how your well operates and is maintained. The conventional mandrel is the first type of mandrel.

However, whenever you need to purchase a gas lift spring, endeavor to patronize a reliable manufacturer for a quality product.

Mandrels and Traditional Gas Lifts

Valves are attached to the outside of mandrels, which are then inserted at regular intervals into the tubing string. The entire assembly of mandrel, tubing, and attached valves is fed into the well at the same time.

That means that when a valve requires maintenance or replacement, the entire system must be pulled, which necessitates the involvement of a team of workers.

The packer above the tubing perforations, which seals the annular space, is another component to be aware of in a conventional gas lift system.

That space is also sealed at the bottom, so gas fed into it from the surface compress or activates the system.

Mandrel and Valves Installation

The valves must be installed at predetermined, regular intervals along the tubing. Before transporting the tubing to the well, it is essential to determine the intervals and mount the mandrel and valve.

The initial lengths of tubing to be decreased are all loaded together and labeled with a 1 while the second group is labeled 2, and it is also loaded together, and fast.

Each mandrel is equally assembled and labeled according to the order in which it will be installed.

When the tubing arrives at the well site, it can be installed with the mandrels in the proper order. The same numbering and ordering can be used when the tubing needs to be pulled for servicing.

It is critical that each valve be used in the correct sequence and location, or else the lifting system will not function properly.

The Fundamentals of the Gas Lift Valve

When a specific pressure is reached, a valve will automatically open, with the opening controlled by a gas-operated bellows or, on rare occasions, by a spring-loaded mechanism.

The gas lift valve is made up of several chambers. A high-pressure neutral gas fills the topmost chamber. It has a fill valve similar to one found on a tire.

The fill valve is set to a given pressure before being sealed. The second chamber is a bellows with a round end. Internal pressure forces the bellows up against its seat.

The valve's lower chamber is subjected to the annular pressure at the well's bottom. The pressure difference in the annular space open up the valve, allowing the gas to be injected into the fluid.

The gas enters the tubing first through the uppermost valve. The valve above it then closes, while the one below it opens.

This process is repeated until the entire column has been infused with gas and the fluid starts to flow. Fluid will continue to flow as long as gas continues to enter the tubing.

In need of a quality manufacturing gas lift spring?

If you have any need for a gas lift spring, you can count on us for the best deals.

With more than two decades in the manufacture and supply of this product, you can rely on us as a dependable supplier of high quality gas lift spring for all your needs.

Kindly contact us for a smooth business transaction.