CASING CENTRALIZER
A casing centralizer is a device that is mounted on a casing string to center the casing string within the wellbore. It is one of the casing accessories.
It is divided into two types: rigid centralizer and spring centralizer. The casing centralizer has the characteristics of simple structure, convenient use, long service life and low relative cost. In addition to ensuring a certain thickness of the cement ring outside the casing string, the casing centralizer can also reduce the resistance when the casing is under the casing. To avoid sticking the tube, which is beneficial to improve the cementing quality.
The casing centralizer is mainly composed of a central pipe, a liquid cylinder, a connecting sleeve, a driving chain plate, a driven chain plate, a supporting bracket, a lower bracket, a pin, a sealing ring, a retaining ring, and a retaining ring cap. The center tube is provided with a liquid inlet hole. The liquid cylinder and the retaining ring seat are connected by a connecting sleeve, and the retaining ring seat and the center tube are connected by a pin. The active link plate and the driven link plate are connected by pins to form a hinge. The upper and lower brackets are respectively connected to the upper and lower ends of the hinge. The hinged casing centralizer ensures that the hinged casing centralizer is safely lowered to the well design position, which can effectively improve the casing centering and improve the cementing quality.
SAIGAO GROUPis one of the perfect pipe centralizer manufacturers,we provide oilfield cementing tools,casing centralizer typesand casing accessories drilling,contact us now.
Send product request
Other supplier products
 |
BW200/4 Horizontal Double Cylinder Reciprocating Double Acting Piston Pump | BW200/4 mud pump is widely used in mining, drilling, coal, railway, highway, water conservancy and hydropower, bridges, high-rise buildings, founda... |
 |
Wellhead Christmas Tree | What Is Xmas Tree Oil and Gas The xmas tree wellheadis a wellhead device used to extract oil from wells and machine wells. It is the main equipmen... |
 |
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... |
 |
Hydraulic Liner Hanger Polished Bore Receptacle | Hydraulic Liner Hanger Polished Bore ReceptacleMated with tie-back assembly, it can tieback the liner to the top of well and act as efficiency seal... |
 |
Cement Basket | Cement Baskets consists of flexible steel spring bow welded to slip-on collars. Bows are hardened and tempered for maximum strength and uniformity.... |
