The N80 oil casing coupling is a specialized component used in oil and gas drilling engineering to connect two sections of casing pipes. Its function is to join individual casing pipes into a continuous string, ensuring the integrity and sealing of the wellbore. Below is a detailed introduction to oil casing couplings:
Structure and Design
Function: The coupling connects adjacent casing pipes via threads, transmitting torque and axial loads while providing a seal.
Types:
Short Coupling: Shorter in length, used for standard casing connections.
Long Coupling: Longer in length, used for adjusting casing depth or repairing damaged casing.
Thread Types:
API Standard Threads (e.g., STC, LTC, BTC), compliant with American Petroleum Institute (API) specifications.
Special Threads (e.g., VAM, Hydril), suitable for high-pressure gas wells or complex geological conditions.
Specification
Product Name: Carbon Steel Pipe Coupling
Size: 3-1/2 Inch
Standard: API 5CT
Material: Carbon Steel Grade N80
End Connection: EUE
