How To Hang The Tubing In The Wellhead Installation? 

The wellhead should have a set of equipment capable of controlling and regulating oil and gas production. Wellhead equipment is called wellhead equipment, usually called Christmas tree. The wellhead device has the following main functions:

(1) Suspend the weight of all tubing strings supporting the oil well in the tubing;

(2) Seal the annular space between the oil pipe and the casing;

(3) Adjustment of wellhead equipment and oil well production;

(4) Guarantee various underground operations, such as major and minor repair operations;

(5) Daily production management can be carried out, such as obtaining oil pressure, casing pressure data, pressure measurement and wax removal.

Wellhead devices can be divided into three types:

1. Wellhead device, casing brake, main brake, production brake, wax brake, tubing fork and nozzle.

2. The pumping wellhead device is simpler than the self-blowing wellhead device. The basic part is composed of casing tee, tubing tee and polished rod sealing box.

3. The self-blown Christmas tree is a gas wellhead device with the same structure as the self-blown wellhead device. Since natural gas wells have high pressure and contain hydrogen sulfide gas, the wellhead device needs to have a high pressure resistance level and be able to resist the corrosion of hydrogen sulfide gas.