API 5CT TUBING, CASING PIPE, OCTG, OIL COUNTRY TUBULAR GOODS
الاستخدام: Tube for conveying gas, ماء, and oil in both and natural gas industries etc.
Casing: 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.
Quality Standard:
و/ ر 6194 صناعات البترول والغاز الطبيعي – Steel pipes for use as casing or tubing for wells
API 5CT CASING AND TUBING
BS EN ISO 11960 صناعات البترول والغاز الطبيعي – Steel pipes for use as casing or tubing for wells
NF M87-207 صناعات البترول والغاز الطبيعي – Steel pipes for use as casing or tubing for wells
JIS G3439 SEAMLESS STEEL OIL WELL CASING, TUBING AND DRILL PIPE
يكون : 4270 Steel tubes for well spainend casing pipes
الصف الصلب: H-40, J55, K-55, N-80, C-75, L-80, C-90, T-95, Q-125
عملية: ERW and Seamless
مقاس:
1) Tubing
OD: 2 3/8″ — 4 1/2″
WT: 0.167″ — 0.630″
Note: ص : Plain end, N: Non upset, U: External upset, T&ج: Threaded and coupled.
2) Casing
OD: 2 3/8” — 20″
WT: 0.205″– 0.5″
Note: ص: Plain end, ق: Short round thread, L: Long round thread
طول:
R1 R2 R3
Tubing 6.10 -7.32m 8.53-9.75m 11.58-12.80m
Casing 4.88 – 7.62m 7.62-10.36m 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 copper- plated or phoshphated
اتصال: Casing: LTC, STC, BTC, VAM. Tubing: NUE, EUE.
نهاية: Beveled, Square cut. And pipe protection cap specially for casing and tubing.
سطح: Corrosion proofing water based paint
Heat treatment: Normalized, Quencher + Temper
التعبئة: The casing pipe will be packed into bundles as 3×3, 3×4, 4×4 إلخ. and loading into containers after black painting and thread protectors installation.
Test: تحليل المكون الكيميائي, الخصائص الميكانيكية (قوة الشد النهائية, Yield
strength, استطالة), الخصائص الفنية (اختبار تسطيح, Flaring Test, اختبار الانحناء, اختبار الصلابة, اختبار ضربة, Impact Test etc), فحص الحجم الخارجي, Nondestructive Test (Ultrasonic flaw detector, Eddy current flaw detector), اختبار الهيدروستاتيكي.
