Oil casing is the lifeline for maintaining oil well operations. Due to different geological conditions, the state of the downhole is complicated, and the combined action of tension, compression, bending and torsion stress acts on the pipe body, which puts high requirements on the quality of the casing itself. Once the casing itself is damaged for some reason, it may result in a reduction in production and even scrapping of the entire well.

 

 

 

According to the strength of the steel itself, the casing can be divided into different steel grades, namely J55, K55, N80, L80, C90, T95, P110, Q125, V150 and so on. the well conditions and well depth are different, and the steel grades used are also different. the casing itself is also required to have corrosion resistance in a corrosive environment. In the complex geological conditions, the casing is also required to have anti-crushing performance.

 

Features of 8-5/8'' Casing Pipe:

8 5/8" (219.08mm) API 5CT  Seamless Casing Pipe

 

API-5CT Casing Pipe Steel grade: J55/K55/N80/L80/P110/C95/13Cr/28Cr

 

Threads: BTC, LTC, STC, PRMIUM CONNECTION

Length range: R1, R2, R3

 

 

 

Technical Specifications of 8-5/8'' Casing Pipe:

OD mm	Ib/ft	Grade	W. T	short	long	Buttress
219.08(8 5/8" )	24.00	J, K	6.71	YES
	28.00	H	7.72	YES
	32.00	H, J, K	8.94	YES	YES	YES
	36.00	J, K, C, L, N	10.16	YES	YES	YES
	40.00	C, L, N, P	11.43		YES	YES
	44.00	C, L, N, P	12.70		YES	YES
	49.00	C, L, N, P, Q	14.15		YES	YES
	75.00	J, K, M	11.13	YES		YES
	84.00	J, K, M	12.57	YES		YES
	106.50	J, K	12.70	YES	YES	YES

 

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