N80 Q2 8th Edition Seamless Casing , OCTG Casing Copper Coated Surface

Casing Pipe

Tubing steel pipe

Oil Casing Pipe/Steel Pipe

Including ordinary casing, Anti-collapse casing, Anti-corrosion casing, Hi-strength casing

Serves as walls of a well;

Standard: API 5CT

Steel Grades: k55, J55, L80,N80,C90,C95, P110 T95, M65,E75,X95,G105,S135

1) Tubing

OD: 2 3/8" -----4 1/2"

WT: 0.167" -----0.630"

Note: P : Plain end, N: Non upset, U: External upset, T&C: Threaded and coupled.

2) Casing

OD: 2 3/8“ ----20"

WT: 0.205" --- 0.5"

Note: P: Plain end, S: Short round thread, L: Long round thread

Length : R1 R2 R3

Tubing 6.10 -7.32 m 8.53-9.75m 11.58-12.80m

Casing 4.88 - 7.62m 6.72 -10.36m 10.36 - 14.63m

3) Drill Pipe

OD: 2 3/8" - 5 1/2"

WT: 0.280" - 0.449"

Note: EU: External upset , IEU: Internal & External upset

Thread of tool joint are right-hand or left hand

Thread are coper- plated or phoshphated

OCTG inspection items are as follows: appearance inspection, dimension inspection, chemical composition inspection, performance test, drift test, straightness inspection,

Pipe magnetic leakage and ultrasonic flaw detection, standoff inspection, thread inspection, phosphating corrosion inspection and hydraulic water pressure test.