1- Casing Head
2- Casing spool
3- Tubing Head
Electrical Satellites & wellhead Platforms Senior Technician
A wellhead is a structure positioned at the top of an oil or gas well to control the flow of fluids and prevent leaks. It consists of valves and fittings to regulate pressure and allow for the extraction of oil or gas. The wellhead acts as a barrier between the underground reservoir and the surface equipment.
Use a self propelled FLOAT/CAP based on bathyscaphe technology; the cap has neutral buoyancy, maneuver the cap over the damaged wellhead to enclose it (The cap has a new wellhead mounted on top). the effect is like if the bottom of the sea was raised and with an entirely new wellhead.
A wellhead compressor is installed at the wellhead to increase the pressure of natural gas as it is produced from the well, facilitating its flow to the processing facilities. In contrast, a booster compressor is typically used in the pipeline system to maintain or increase gas pressure along the transportation route, ensuring that the gas can move efficiently through long distances. Essentially, the wellhead compressor is focused on the production phase, while the booster compressor supports the transportation phase of natural gas.
Wellhead Equipment is a very important piece of oilfield equipment. We can classify Wellhead Equipment as conventional components. Wellhead products that consist of base plates which are easily detachable from the casing head for reattaching and welding. Such Equipment provides extra load for supporting the higher case loads. Wellhead casing has a straight bore design that accepts casings of different hangers. The line pipe threaded outlets, studded or flanged outlets can be also provided. Bottom preps include a slip on weld and threaded connections. Casing hangers type of equipment combine pack off and slip bowl hangers. Wellhead is easy to install and is also fluted for allowing the cement returns. Wellhead Equipment can also be included as the casing spools that have a top bowl configuration. Equipment has locking pins. Wellhead secondary seals help in the installation of tubing heads and casing spools to provide pressure energized secondary seals. Wellhead tubing has a fully opened straight bore design with a dual completion head available and is compatible with a variety of tubing hangers.
about 150 00 an hour
· wellborn · welled · wellhead · wellness · wells
The fixtures on top of a gas well are typically called a wellhead or wellhead assembly. They are used to control and manage the flow of gas and other fluids from the well, as well as to provide a connection point for equipment such as pipes and valves.
Primary and secondary wellhead seals are located at the wellhead, which is the structure at the surface of a well that provides access to the subsurface. The primary seal is typically the first line of defense against fluid escape and is directly in contact with the wellbore, while the secondary seal serves as an additional barrier, positioned below or around the primary seal to provide extra protection. These seals are essential for maintaining well integrity and preventing leaks.
Wellhead equipment are used in connecting the casing and tubing to an oil or gas pipeline. These are useful in suspending the casing strings and help seal the well. The casing is a permanently-installed pipe for lining the well hole to provide pressure containment and prevent collapse. Wellhead equipment are known as the flanged devices that are attached to the casing and they include a number of other components such as casing heads, casing spools, tubing head spools, tees, and crosses. The casing head is part of the connection between the casing and the wellhead equipment itself. Usually, many pieces of wellhead equipment are assembled together into one a single unit that is called a "Christmas tree". These are important for the tubing to be placed into the well while valves and chokes are used to control the flow of oil and/or gas at the surface. Wellheads and and its components may be located on offshore platforms, in sub-sea locations, or onshore.
You disconnect the horizontal pipe from the vertical well pipe at the wellhead, and pull up the vertical pipe.
There really isn't any statistics. A naturally flowing well must have a well head pressure sufficiently above atmospheric to be able to flow into the separator. A well under natural pressure depletion and flowing conditions will have a declining wellhead pressure, but if artificial lift is installed, the well head pressure can markedly increase.