Wellhead Christmas tree equipment is an important oil and gas mining equipment, from the casing head, tubing head, oil (gas) tree consists of three parts, used to connect casing string, tubing string and sealing layers between the casing and the annular space between the tubing and to control the pressure and regulate the production wellhead oil (gas) wellhead flow, can also be used for acid fracturing, water, testing and other special operations.
The Christmas tree is the assembly of the valve and the accessories, which is used for the fluid control of the oil/gas well, and supplying the inlet for the tubing string. The Christmas tree refers to all the devices on the tubing head and the flange. Christmas tree could be assembled differently so as to meet the different requirements. The Christmas tree could be used for oil exploration, gas exploration, water adding, compression fracture, acidification, etc. The different Christmas trees are with the different pressure grades.
The Christmas tree and the tubing heads are mainly used for gas exploration and adding. Because the natural gas is with the low relative density and adding pressure, while the wellhead is with the high pressure and flow rate, it would be easy to leak. Sometimes, there's H2S, CO2 and other corrosive medium in the natural gas. It would have the more strict requirements on the sealing capacity and the sealing materials of the Christmas tree. Thus, the tube and the sleeve should be with double valves. The valves should be forged by the best-quality steel for the high-pressure or extra-high-pressure gas well.
Specification
1. API Spec 6A standard.
2. To fix drilled wellhead, connect wellhead casing string, seal and control the annular space of casing, suspend tubing, control wellhead pressure and adjust flow rate, induce oil into outlet pipeline, shut off oil wells when necessary and apply to acid fracturing, water injection and testing services.
3. Consisting of casing head, tubing head and Christmas tree.
4. Applicable to all kinds of casing and tubing programs and connection types.
5. Reliable running and simple and convenient operating and repairing.
6. Can be equipped with hydraulic/pneumatic safety valves.
7. High quality and good pre/post-sale services.
8. Packaging: Applicable for land/air/marine transportation or as required.
API 6A Wellhead Christmas tree
All products are fully in accordance with API, ANSI, GB(national standard) and SY(industry standard)standards.
Fix drilled wellhead, connect wellhead casing string, seal and control the annular of casing, suspend tubing, control wellhead pressure and adjust flow rate, also include oil into outlet pipeline, shut off oil well when necessary, and apply to acid fracturing, water injection and test service.
Consist of casing head, tubing head and Christmas tree.
Apply to all kinds of casing, tubing programs and connection forms.
Feature reliable running, simple and convenient operating and repairing.
Working pressure: 2000PSI~20000PSI
Working medium: Oil, natural gas, mud, including H2S, CO2
Working temperature: -46° C~121° C(Class LU)
Material class: AA, BB, CC, DD, EE, FF
Specification level: PSL 1-4
Performance level: PR 1-2
| Standard |
Operating
Pressure |
Operating
Media |
Operating
Temperature |
Material
Grade |
Spec.
Level |
Performance
Level |
ND
(in/mm) |
Color |
| API Spec 6A |
2000-20000
psi |
Oil/
Natural Gas/
Mud/
Water/
Gas containing
H2S/CO2 |
LU
(-46°- 121°) |
AA BB CC DD
EE FF HH |
PSL1-4 |
PR1-2 |
2 9/16"
7 1/16''
65-180 |
Red or
as
required |
Audited Supplier 
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