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.
Send product request
Other supplier products
 |
SYX-A Hydraulic Liner Hanger | As one of the oil equipment suppliers, Saigao Groupspecializing in design, research, and development, processing, and manufacturing. sales and expo... |
 |
BW600/10 Horizontal Three Cylinder Reciprocating Single Acting Piston Pump | BW600/10 mud pump is horizontal three cylinder reciprocating single acting piston pump with high stability and high pressure. Advanced product des... |
 |
Hydraulic Liner Hanger Tie-Back Assembly | The tie-back assembly is a special cementing tool for tieback operation. Tieback equipment allows existing liners with a receptacle to be extend... |
 |
BW240-10 Horizontal Three Cylinder Reciprocating Single Acting Piston Pump | BW240/10 Mud Pump is widely used in mining, drilling, coal, railway, highway, water conservancy and hydropower, bridges, high-rise buildings, found... |
 |
MUD PUMP | Mud Pump is also a popular concept of a wide range of pumps. Different regions, habits, and ultimately the pump type will not be the same. The mud ... |
Same products
 |
Shoes Flexing Tester | Seller: Qinsun Instruments Co., Ltd | It's used for determining the flexibility resistance and or indicating the cracks od shoe or shoe... |
 |
Shoelace Abrasion Tester | Seller: Qinsun Instruments Co., Ltd | Application: This shoelace abrasion tester is used for shoelace against standard eyelet abrasion... |
 |
Heel Fatigue Tester | Seller: Qinsun Instruments Co., Ltd | Heel Fatigue Tester is used to determine the resistance of medium and high heels of ladies’... |
 |
Heel Impact Tester | Seller: Qinsun Instruments Co., Ltd | Heel Impact Tester is used to determine the impact strength of heels of ladies’shoes. Ap... |
 |
Ross Flex Tester | Seller: Qinsun Instruments Co., Ltd | Whole Sole ROSS Flexing Tester GT-KB05D To determine right angle flexing risistance for whole sol... |
