Wellhead Equipments
A Few Words about Wellhead Equipment
A wellhead is a component located on the surface of oil or gas well, which provides structure and pressure bearing interface for drilling and production equipment.
The main purpose of using the wellhead is to provide a peadant point and pressure seal for casing string from hole bottom to surface pressure control equipment.
SAIGAO GROUPhas loong been one of the well-developed wellhead manufacturers in China and aims to provide customers with high quality wellhead equipment. You can find wellhead Christmas tree, casing head and tubing head here with attractive prices.
Functions of different types of wellheads
After the digging of oil or gas well is finished, a set of equipment that can control and regulate oil and gas production is required. The said equipment is called wellhead equipment. People uses wellhead equipment becasue it has the following main purposes:
(1) Suspending the weight of all tubing supports in the well;
(2) Seal the annular space between tubing and casing;
(3) Control and regulate the production of oil well;
(4) Ensure all underground operations, such as major repair and minor repair;
(5)It can be usd to record oil pressure and casing pressure data, measure pressure, paraffin removal and other daily production management.
Well Tubing Suspension Theory of Wellhead Equipment
Oil and gas well wellhead equipment can be divided into three types: flowing well wellhead equipment, pumping well wellhead equipment and gas well wellhead equipment.
The same principle of well tubing suspension goes for the three kinds of wellhead equipment. Today, oilfields generally adopt the jacking valve suspension method, that is, a jacking valve is installed on the casing four-way, and there is a tapered channel in the jacking valve. The tubing hanger is also a cone.
With a sealing ring, the tubing suspension sits firmly in the seat of the jacking valve under the pull of the weight of the entire wellbore tubing. The function of the jack wire is to prevent the tubing string from being pushed out when the pressure in the well is too high.
During workover operations, after killing the well, remove the wellhead equipment above the casing spool firstly, then loosen the jack wire and take out the tubing before starting to construct according to the design. After the construction is completed, the tubing is seated in the tubing suspension with the jacking valve tightened, and the wellhead device is installed. So far, the construction is completed.
If you are looking for reliable oil equipment suppliers, please contact us, and we will be your best partner.
在线联系供应商
Other supplier products
 |
Corn Gluten Meal(feed Grade) | Corn Gluten Meal(feed Grade) Corn gluten meal is a by-product of processing corn to make corn starch and corn syrup. It is generally sold as a gol... |
 |
Glyoxylic Acid | Glyoxylic acid is a colorless or light yellow liquid. It is miscible with water and slightly soluble in ethanol and ether. It is insoluble in ester... |
 |
D Calcium Pantothenate | D Calcium Pantothenate D-calcium pantothenate is a white powder that is odorless, slightly bitter in taste, and hygroscopic. The aqueous solution ... |
 |
Difluoroacetic Anhydride | Product Name DIFLUOROACETIC ANHYDRIDE CAS 401-67-2 Molecular Formula C4H2O3F4 Molecular Mass ... |
 |
Soy Fiber | Soybeans fiber is a natural water-soluble soy dietary fiber and insoluble dietary fiber composed of galactomannan, xylan and mannan. The soy protei... |
Same products
 |
GT-JYH12 热流道CNC数控缩管机 | 卖方: 肇庆古雷特科技有限公司 | 产品说明 GT-JYH12 热流道CNC数控缩管机，主要用于热流道加热器、小型加热器的缩管加工。 主要参数 缩后直径：1.2–6mm 缩前最大直径：9mm ... |
 |
GT-JY18 18 段缩管机 | 卖方: 肇庆古雷特科技有限公司 | 产品说明 GT-JY18 型 18段缩管机是一款常用的管状加热器缩管设备，采用整体式铸铁床身。由于铸铁整体床身刚性好、强度高，不易变形，可保障设备长期稳定运行。 主要参数 ... |
 |
Multiple Blades Digital Label Cutter VR350 | 卖方: WILLIAM CNC TECHNOLOGY | Multiple Blades Digital Label Cutter VR350 The VICUT multiple blades digital die cutterVR350, eq... |
 |
Digital Label Die Cutting Machine VR240X | 卖方: WILLIAM CNC TECHNOLOGY | Digital Label Die Cutting Machine VR240X VR240X digital label finisheris redeveloped based on th... |
 |
Rotary die cutting machine VR320 | 卖方: WILLIAM CNC TECHNOLOGY | Rotary die cutting machine VR320 The VICUT VR320 roll to roll labels cutting machineis the most ... |
