Price list api 5ct grade steel casing

 price list api 5ct grade k55 steel CASING pipe and TUBING pipe

The application of coiled tubing began in 1944 during World War II, mainly the submarine pipeline (PLUTO), which transported fuel to the Allied forces in the European continent.
In the early 1960s, it began to be used in the petroleum industry, mainly for well flushing and sand bridge removal. Coiled tubing is on the verge of premature death due to frequent mechanical accidents.
In the 1980s, technicians improved the CT welding technology and improved the wellhead control system. The coiled tubing technology has been widely used in workover, completion, drilling, logging, etc. In particular, coiled tubing fracturing has been more widely used in shale gas development projects since 2014.

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.