If you work in the oil industry, you probably came into contact with the wellhead at some point. However, many people do not know the main components of the wellhead. Read on to learn about the main components of the wellhead. Casing Components There are three main parts of the casing: the head, the spool and the hanger. The casting head is used to help isolate the surface casing from all external factors. The head also helps to support the weight of workers while drilling. A casing spool usually consists of several strings, but certain ones have only one string sometimes. During drilling, the casing spool works as an additional sealing device. There are two types of casing hanger : slip and mandrel. When the pipe gets stuck, the worker will install the sliding hanger , then you can replace the sliding hanger after cutting the casing. If threading on the wellhead is convenient to use, mandrel hanger is the preferable choice. Tubing Components The tubing a...