What is a wellhead?

A wellhead represents the upper terminus of a well or borehole. This is the point where the well emerges at the ground surface, serving as the access point for various operations and connections related to the well. The wellhead is critical because it houses the equipment that controls the flow of fluids, provides pressure control, and allows for the installation of additional components necessary for the well's function, such as valves, gauges, and pumps.

Understanding the significance of a wellhead is important in both drilling practices and well maintenance, as it plays a vital role in ensuring the safety and efficiency of operations. This includes aspects such as preventing contamination, controlling fluid pressures, and facilitating interventions when necessary. The wellhead also must be constructed and maintained to withstand environmental conditions and operational stresses, ensuring long-term functionality and safety. This is an essential component of well construction and management in the drilling industry.