Wellhead Equipment

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Wellhead Equipment

Wellhead Equipment Manufacturer

Yulin Machinery is one of the well-established wellhead manufacturers in China, aiming to provide high-quality wellhead equipment to our customers. We provide different types of wellhead equipment: natural gas wellheads, oil wellheads, subsea wellheads and surface wellheads. Wellhead equipment is a system composed of spools, valves and various adapters that provide pressure control for production wells, such as casing spools, casing heads, etc.

Wellhead equipment as well as Christmas tree products are crucial equipment for oil/gas exploitation, including 3 parts-casing Head, Tubing Head and Tree Cap, made use of for linking covering and tubing strings, Rubber Seals the annular space between tubing and different casings, keep an eye on well stress, and change oil/gas well circulation, appropriate for acidizing, fracturing, water flooding and screening.

Yulin Machinery wellhead and Christmas tree items are created in compliance with API 6A etc., making certain safety and security and dependability. By sophisticated lean production monitoring, the yearly output of wellhead Valves can get to 2500 collections, covering Christmas tree, Fracturing HeadsCasing HeadCasing Spool, tubing spindle as well as tubing head adapter, dedicated to satisfying numerous consumer needs.

Our main products include: series of oil (gas) Wellhead Equipment, well Control EquipmentDrill Stem Tools, pumping tools, Handing Tools, API 6A valves and other products are produced in accordance with international standards and the latest national standards, and have passed ISO 9001 certification. The right to use API Spec 6A, 16A, 16C, 7-1 and other official monograms, self-support import and export rights.

 

Functions of Wellhead Equipment

After an oil or gas well has been drilled, it requires a piece of equipment that can control and regulate the production of oil and gas. This equipment is called wellhead equipment. People use wellhead equipment because it has the following main purposes:

1、Suspend the weight of all the tubing supports in the well;  

2、Sealing the annular space between the oil casing;

3、Controlling and regulating oil well production;

4、Ensuring all well operations such as major and minor repairs;

5、It can be used to record oil pressure, casing pressure data, measure pressure, clear wax and other daily production management.

 

Well Tubing Suspension Theory of Wellhead Equipment

Oil and gas wellhead equipment can be divided into three types: self-injection wellhead equipment, pumping wellhead equipment and gas wellhead equipment.
The tubing suspension principle is the same for all three types of wellhead equipment. Nowadays, oilfields commonly use the jacking valve suspension method, i.e., installing the jacking valve on the casing tee, which has a conical channel inside the jacking valve. The tubing suspension is also conical.

By means of a sealing ring, the tubing suspension is firmly fixed in the seat of the jacking valve under the pulling force of the weight of the tubing in the whole wellbore. The function of the jacking wire is to prevent the tubing column from being pushed out when the pressure in the well is too high.

During the workover operation, after the well is pressed, the wellhead equipment above the casing tee is removed, then the jack wire is loosened, the tubing is removed, and the work is begun as designed. After construction, drop the tubing into the tubing suspension device, tighten the jacking valve and install the wellhead device. At this point, construction is complete.

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  • Tel.: +86 158 0080 9423
  • E-mail: info@aqemachinery.com
  • Add.: Chuangshanghui Building, Yanan East Road No.1882, Changning District, Shanghai, China
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