As oil production environment changes, requirements on the connection strength and sealing performance are much higher in deep well, ultra deep well, high-pressure gas wells, thermal production wells, extended reach wells and complex fommation structure wells.
API round thread sealing type has poor performance, the connection strength of threading section is only 60%-80% of tube body strength. Although the strength of API buttress thread is higher while its seal performance is very poor.
Most of the premium connection used in China are imported, only few companies develop and produce such product. The research of premium connection started from Vallourec in 1960s, until now there are more than 30 companies which has developed similar connection, with more than 100 patented products, which are suitable forvarious conditions of drilling and production. Premium connection were widely used more than 22% of total OCTG, more than 60% in Europe.
We offer premium threading services across industry-leading specifications, meeting the highest standards for reliability and compatibility. In addition to threading, we provide full machining capabilities and accessory manufacturing tailored to exact project needs, supported by copper plating processes, manganese, and zinc phosphate treatments that enhance corrosion resistance and conductivity.
Full-Length Drill Pipe, Casing, and Tubing
● Crossovers, Subs, Side Entries
● Custom Downhole Tools
● Junk Baskets, Mills, Drift Mandrels
● Wash pipes, Shoes, Lift Nubbins
● Customer-designed and API-compliant components
● Casing and Tubing Couplings
● Customer-supplied and OEM Packers
● Customer-supplied and OEM Casing and Tubing Hangers
● Customer-supplied and OEM Float Equipment
Size:
Φ1.9 inch - Φ20 inch
Grade:
J/K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr, P110, Q125, Super13Cr 95~110KSI, 25Cr 125KSI, 28Cr 125KSI.
Premium connection:
Authorized machine shop of Baosteel, TPCO and HYST premium connection for OCTG and tubular longer than 6 meters.
Authorized machine shop of VAM series, Tenaris, JFE, FOX, Hunting for OCTG accessories and tubular below 6 meters.
For detailed information, please reach to our sales channel.