The wellhead is a steel surface well control device that forms a baffle system to withstand bursts. This tool is an important component in the drilling process. Installed on each casing and tubing rope on the surface of the well.
Broadly speaking, the wellhead has two main functions. The first function is as a buffer casing string. Each casing and tubing that enters the well depends on the wellhead. The second function is as a flow regulator. Wellheads designed to regulate flow to and from the well.
The wellhead has two series in it as follows.
- Casing Head – serves as a place to hang a series of cases. This section also serves to prevent leakage. Inside there is a gas outlet to reduce the gas that has accumulated between the casings.
- Tubing Head – serves to support the tubing underneath. This section also serves to close the gap between casing and tubing. By closing the gap, fluid flow can exit through the tubing.
Basic Types of Wellhead
There are several basic types of wellheads as follows.
- Conventional Wellhead System – This type works for all types of drilling. This system has the advantage of being cost-effective. Also, this type is flexible and easy to use.
- Compact Wellhead – This type is an extension of the Conventional System. In this type, head spool casing and head spool tubing integrated into one unit. That way, the drilling time will be more efficient. In addition, the security system has also been improved.
- Mudline Suspension Systems – This type usually installed on the seabed with the production casing and production tubing connected to the platform. This type has two main parts that mounted on the seabed to support the strap casing and an extension of the strap case subsidiary.
- Subsea Wellhead Systems – This type usually used offshore and installed on the deep seafloor. This tool does not require a fixed platform. Because it’s installed on a deep seabed, tools and methods of installation are different from other types of wellheads.
That’s the discussion about the wellhead which is an important tool in mining activities. Because it is related to mining activities, wellhead often used as a corporate souvenir in miniature form. You can see some examples of miniature wellheads in the Minikraf. If you are interested, you can order it by contacting customer service.