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Casing pipe and tubing pipe

Casing is a large-diameter pipe that serves as the structural retainer for the walls of oil and gas wells, or well bore. 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. Steel Casing Pipes have smooth wall & minimum yield strength of 35,000 psi.

Tubing: Tubing is pipe used for the transportation of crude oil and natural gas from an oil or gas layer to the surface after drilling is complete. It is made to withstand the pressure generated from the extraction process. Tubing is manufactured in the same way as casing, except that an additional process known as "upsetting" is applied to thicken the pipes.

Material:API 5CT H40/J55/K55/N80/L80/P110/Q125 Oil Tubing with LTC\ STC\BTC\VAM\NUE\EUE
Length: 6M~14M,R1,R2,R3 length can be manufactured by customer requirement.
OEM: can be required
OD: 14mm~720mm,4 1/2, 5, 5 1/2, 6 5/8, 7, 7 5/8, 7 3/4, 8 5/8, 9 5/8,10 3/4,11 3/4,13 3/8.

Casing pipe and tubing pipe

Quality Standard

SY/T 6194 : Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells
API 5CT CASING AND TUBING
BS EN ISO 11960 :Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells
NF M87-207 : Petroleum and natural gas industries Steel pipes for use as casing or tubing for wells
JIS G3439 :SEAMLESS STEEL OIL WELL CASING, TUBING AND DRILL PIPE
IS 4270 : Steel tubes for well spainend casing pipes

Steel Grade: H40, J55, K55, N80, M65, L80, L8013CR, C90, C95, T95, P110, Q125, V150