Wellhead and Christmas Tree

Wellhead Equipment includes casing head, tubing head and Christmas tree, and it is important equipment for oil production. The purpose of wellhead equipment is to connect casing and tubing strings, to seal the circular space between the casing and tubing strings, and to contain pressure and readjust flux of well liquids. It also helps in case of acid fracturing, water injection and testing operation.

1. Fix drilling wellhead, connect wellhead casing string, seal and control the annular of casing, suspend tubing, control wellhead pressure and adjust flow rate, also induce oil into outlet pipeline, shut off oil well when necessary, and apply to acid fracturing, water injection and test service

2. Consist of casing head, tubing head and Christmas tree

3. Apply to all kinds of casing, tubing programs and connection forms

4. Can be equipped with (pneumatic) hydraulic safety valve


Main Specifications:

Rated Pressure 2000-15000psi
Temperature LevelK, L, P, R, S, T, U, V
Material ClassAA, BB, CC, DD, EE, FF
Designing StandardsAPI Spec 6A, GB/T22513, SY/T5127
Product Specification LevelPSL1-PSL3
Performance Requirement levelPR1, PR2
Service Substance Petroleum, gas or mud


SIZE: 1-13/16" ~ 7-1/16"    
TEMP: K ~ Y
PRESSURE: 2000 ~ 15000psi
PR: 1 ~ 2
PSL: 1 ~ 3
MATL: AA/DD, BB/EE, CC/FF