The Christmas tree is one of the important devices for controlling the inlet pressure and adjusting the flow rate of the oil or gas well in the production operation of oil or gas wells.

It is composed of a series of crosses, valves, nozzles and joints. It is mainly used to control oil and gas production and ensure the safety of facilities. It can allow measuring tools to enter the well, seal the annular space between the tubing and casing, and suspend the tubing to support all tubing in the well. Column weight.

Connection method of Christmas tree

There are five main ways to connect Christmas trees:

(1) Clamp connection: The connection between the components of the Christmas tree are mainly clamps, such as Daqing 150II, Sheng261 Mini, Sheng254 and other Christmas trees;

(2) Threaded connection: the connections between the components of the Christmas tree are mainly threaded, such as Daqing 150, Sheng 251 and other Christmas trees;

(3) Iron hoops connection: the connections between the components of the Christmas tree are mainly iron hoops, such as Sheng I, Sheng II and other Christmas trees;

(4) Flange connection: The connections between the components of the Christmas tree are mainly flanges, such as Shanghai Dalong, Rongfeng, Lianggong and other Christmas trees;

(5) Clamp flange connection: the connection between the components of the Christmas tree is mainly based on the clamp and the flange, such as the original Christmas tree such as CY250.