Christmas Tree

Christmas Tree is flowing well and apheresis wells used to extract oil wellhead. It is mainly used for hanging tubing string into the well, seal oil casing annular space, Food dehydrator and regulate oil production, to ensure operation, construction, taking oil casing pressure data, testing and cleaning wax and other daily production management. Has the following main functions: (1) supporting the well tubing hanging all the weight of the tubing string. (2) sealing the tubing, the annular space between the casing. (3) control and regulate the production of oil. (4) ensure that all underground operations. (5) can be admitted to oil pressure, casing pressure data and manometry, wax and other daily production management. Also known as the Christmas tree. In the oil (gas) test after completion of oil and oil expeller, or when a flowing wells and oil wells apheresis when a wellhead control devices. It consists of tubing hanger and the many gates and three-or four-component, directly mounted on the casing head. Only one side of the tubing christmas tree, christmas tree, said wing; flowlines on both sides, said wings christmas tree. Christmas tree with glib (choke mouth), by replacing the different diameter nozzle to control the oil and gas production.