casing 20 inch 30 inch for production casing

Factory supplied threaded socket stainless steel couplings

The Casing is threaded to shorten the running time. The CASING is a disposable material. Once problems occur in use, it will cause great losses, so the quality requirements for the casing are extremely strict.
The special products of casing include special button type casing and casing with special materials and properties such as sulfur resistance, corrosion resistance and collapse resistance. Special button casing is mainly used for deep well cementing where the tensile strength of ordinary casing does not meet the requirements, and generally only one section is used at the wellhead; Sulfur resistant and corrosion-resistant casing is mainly used in deep and ultra deep wells of sour oil fields; Destructive casing is mainly used in deep wells and ultra deep wells in oil fields due to its high collapse pressure and good mechanical and collapse properties.

Couplings are used to connect two joints of TUBING COUPLING or casing pipe together.

Couplings are short length of heavy wall pipe with the same threads on each end.

EASTSUN manufactures Tubing Coupling and casing TUBING coupling strictly comply with API 5CT latest standard.

FAQ

Q1:  How long is your delivery time?

       According to the quantity of per size.Generally it is with 7 days if the goods are in stock,or it is 15-20 days if the goods are not in stock.

Q2: Do you provide samples ? is it free or extra ?

      Yes, we could offer the sample for free charge but do not pay the cost of freight.

Q3: What is your terms of payment ?

      A: Payment<=1000USD, 100% in advance.

           Payment>=1000USD, 30% T/T in advance ,balance before shippment.

      B:100% L/C at sight.

      C:30% advance payment ,70% L/C at sight.