Cinina Plant API 5CT Oilfield Drilling Well Casing

Cinina Factory Sales API 5CT N80 L80 oil well CASING for oilfield drilling

In API SPEC 5CT standard, the steel grades of casing and TUBING indicate their yield strength and characteristics. Steel grade marking is usually represented by 1 letter and 2 or 3 numbers, such as N80. In most cases, according to the order of the letters in the alphabet, the later the letters, the greater the yield strength of the pipe. For example, the yield strength of N80 first grade steel is greater than that of J55: the numerical symbol is determined by the minimum yield strength of the pipe expressed in thousands of pounds per square inch. For example, the minimum yield strength of N80 steel grade is 80klb/in2

Oil casing steel grades listed in API SPEC 5CT standard include H40, J55, K55, N80, M65, L80, C90, C95, T95, P110 and Q125

Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells or wellbore.

It is inserted into a well bore and cemented in place to protect both subsurface formations and the wellbore from collapsing and to allow

drilling fluid to circulate and extraction to take place.

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.