Tubing spool
The tubing head is usually a cross with flange connection at the top and bottom. It is installed on the flange on the casing head to hang the tubing string and seal the annular space between the tubing string and the oil casing. It is composed of tubing head cross and tubing hanger.
Tubing head function:
1. Hang the tubing string in the well.
2. Seal the annular space between tubing and casing.
3. Provide transition connection between casing head and Christmas tree.
4. The two side ports on the tubing head spool can be used for water injection and well flushing.
Basic parameters
Nominal size: 7 1 / 16 "~ 21-1 / 4"
Working pressure: 2000psi ~ 15000psi
Temperature class: Ku
Material grade: AA, BB, CC, DD, EE, FF, HH
Specification level: PSL1 ~ psl4
Performance level: PR1 ~ PR2