API oil well Perforated screen pipe

j55 TUBING and CASING Fitting API oil well Perforated screen pipe

In API 5CT standard, casing and tubing are divided into 4 groups and 19 steel grades. According to the manufacturing method, it is divided into seamless steel pipe and welded pipe. Except L80-9Cr and LJ80-13CI In addition to the 6 steel grades C90-1, C90-2, T95-1, T95-2, etc., which are limited to use seamless steel pipes, other steel grades can not only use seamless steel pipes, but also use straight seam welded pipes produced by resistance welding or electric induction welding. his
For the heat treatment process, except for the three steel grades in the first group, 14 steel grades in the first group N80Q, the second, third and fourth groups must be subject to full length quenching+tempering, and the minimum tempering temperature is specified for the eight steel grades in the second group. Only the maximum values of S and P content are specified for the 7 steel grades in Group 1, Group 2 and Group 3, but no other main chemical components are specified. Chemical composition requirements are specified for 12 steel grades in Group 2 and Group 4.

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

OD	4 1/2" - 20"
W.T.	5.21-22.22 mm
	14.14-197.93 kg/m
Nominal weight	9.5-133.0 Ib/ft
Technique	Cold/Hot Rolled
Material	H40, J55, K55, M-65, N80, L80, C-95, N-80 Type1,Q , C-90, T-95, P-110 ect.
Standard	API SPEC 5CT/ISO11960

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