1 Master Valve:
Job: control mains flow from well. Can be manual or automatic.
Location: Typically mounted at the top of the well head.
2 Production Valves:
Job: control the flow of liquids (oil or gas) to pipelines or processing equipment.
Location: Mounted on both sides of tree to direct downstream.
3 Choke Valve:
Function: Control the rate of fluid flow from the well by gradually reducing pressure.
Location: Usually mounted after production valve.
4 Safety Valve :
Function: Automatically turn off flow in emergency or when pressure increases.
Location: Usually pinned to the bottom of the tree.
5 Wing Valve Line:
Job: Control production flow to processing or testing lines.
Location: mounted horizontal on the sides
6 Test Line :
Job: Directing liquids to testing equipment to assess the productivity of the well.
Location: separate side line connected to tree.
7 Pressure Gauges:
Job: monitor well pressure and ensure equipment is operating safely.
Location: Distributed at different points in the tree.
8 Swab Valve:
Function: Allow maintenance equipment to be inserted or pulled into a well.
Location : Top of the tree
Christmas tree chores:
Control of oil and gas flow from the well.
Prevent uncontrolled flow and ensure safety.
Well Maintenance and Testing available.
Pressure Regulation and Production Rate.
Direction of production to required destinations (such as pipelines or processing equipment).
Christmas tree designs vary depending on well requirements and operating environment.