Wellhead equipment mainly comprises casing head, tubing head and Christmas tree, which is a permanent device for each well after drilling. Wellheads are used for sealing the space between tubing, controlling pressure, adjusting the flow rate, transporting the oil (gas) to the fittings.
| Casing | 30″ / 20″ / 16″ /133/8” / 95/8” / 7″ |
| Working Pressure | 2000PSI~20000PSI |
| Temperature Level | K-U |
| Produce Specification Level | PSL1/PSL2/PSL3/PSL4 |
| Performance Requirement | PR1/PR2 |
| Material Level | AA~HH |
