Casing

Product Detail

Vigor Drilling API 5CT Casing/OCTG Casing 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.


OCTG Casing size: 4 1/2 inch ~20 inch
OCTG Casing material grade: H40, J55, K55, N80,N80Q, L80, C90, C95, T95, P110, Q125,SS95,SS110, 9%CR, 13%CR
Special for L80 13Cr Casing/OCTG Casing is a grade 80ksi martensitic stainless steel described in API 5CT and ISO 11960 (tubulars in carbon and low alloy steels). The alloy is widely used in tubular form for /OCTG Casing/casing and tubing in standard and CO2 environment. pH, chlorides, temperature and H2S can limit its use in other environments. ISO 15156-3 limits the hardness to 22 HRC max for sour service. The alloy is almost similar to AISI 420 modified.
OCTG Casing threads:
BTC (Buttress Thread Casing)
LTC (Long Round Thread Casing)
STC (Short Round Thread Casing)
Different types of OCTG Casing used in the extraction process:
Surface OCTG Casing:
a. It protects the well from contamination in shallow water and gas layers.
b. Supports the wellhead equipment and sustains the weight of the other layers of casing.
Intermediate OCTG Casing:
a. Isolates different layers of pressure to facilitate normal circulation of drilling fluid and protect the production casing.
b. Intermediate casing facilitates the installation of blow-out preventers, anti-leakage devices and tailpipes in the well.
Production OCTG Casing (oil string)
a. It is the conduit through which oil and gas pass from a below surface reservoir.
b. It protects the well and separates fluids into various layers. 

If you are looking for competitive, high quality and fast delivery oilfield casing in stock, or if you are planning to buy casing API from one of the leading casing pipe, cra casing and tubing, premium connection casing/tubing, super 13 chromium casing, vam top tenaris sumitomo casing stock manufacturers and suppliers China, please feel free to contact VIGOR.

Mechanical Property for OCTG Casing material:

Standard codes	Models of steel tubes	Tensile strength(MPa)	Yield strength  (MPa)	Elongation(%)	Hardness
API SPEC 5CT	J55	=517	379~552
	K55	=517	=655
	N80	=689	552~758
	L80(13Cr)	=655	552~655		=241HB
	P110	=862	758~965


Size of Casing/OCTG Casing(other sizes also available): 

Casing   Size	NominalWeight lb/ft	Outside Diameter		Wall  Thickness		Type  of  End  Finish
						Grade
		in	mm	in	mm	J55 K55	L80-1	N80	C90	C95	T95	P110	M65
4  1/2"	9.50	4.500	114.30	0.205	5.21	PS	-	-	-	-	-	-	-
	10.50	4.500	114.30	0.224	5.69	PSB	-	-	-	-	-	-	-
	11.60	4.500	114.30	0.250	6.35	PSLB	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	13.50	4.500	114.30	0.290	7.37	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	15.10	4.500	114.30	0.337	8.56	-	-	-	-	-	-	PLB	-
5"	11.50	5.000	127.00	0.220	5.59	PS	-	-	-	-	-	-	-
	13.00	5.000	127.00	0.253	7.52	PSLB	-	-	-	-	-	-	-
	15.00	5.000	127.00	0.296	9.19	PSLB	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	18.00	5.000	127.00	0.362	9.19	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	21.40	5.000	127.00	0.437	11.10	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	23.20	5.000	127.00	0.478	12.14	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	24.10	5.000	127.00	0.500	12.70	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
5  1/2"	14.00	5.500	139.70	0.244	6.20	PS	-	-	-	-	-	-	-
	15.50	5.500	139.70	0.275	6.98	PSLB	-	-	-	-	-	-	-
	17.00	5.500	139.70	0.304	7.72	PSLB	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	20.00	5.500	139.70	0.361	9.17	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	23.00	5.500	139.70	0.415	10.54	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	26.80	5.500	139.70	0.500	12.70	-	-	-	P	-	P	P	P
	29.70	5.500	139.70	0.562	14.27	-	-	-	P	-	P	P	P
	32.60	5.500	139.70	0.625	15.88	-	-	-	P	-	P	P	P
	35.30	5.500	139.70	0.687	17.45	-	-	-	P	-	P	P	P
	38.00	5.500	139.70	0.750	19.05	-	-	-	P	-	P	P	P
	40.50	5.500	139.70	0.812	20.62	-	-	-	P	-	P	P	P
	43.10	5.500	139.70	0.875	22.22	-	-	-	P	-	P	P	P
7"	20.00	7.000	177.80	0.272	6.91	PS	-	-	-	-	-	-	PS
	23.00	7.000	177.80	0.317	8.05	PSLB	PLB	PLB	PLB	PLB	-	-	PLB
	26.00	7.000	177.80	0.362	9.19	PSLB	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	29.00	7.000	177.80	0.408	10.36	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	32.00	7.000	177.80	0.453	11.51	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	35.00	7.000	177.80	0.498	12.65	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
	38.00	7.000	177.80	0.540	13.72	-	PLB	PLB	PLB	PLB	PLB	PLB	PLB
9  5/8"	32.30	9.625	244.48	0.312	7.92	-	-	-	-	-	-	-	-
	36.00	9.625	244.48	0.352	8.94	PSLB	-	-	-	-	-	-	PSLB
	40.00	9.625	244.48	0.395	8.94	PSLB	PLB	PLB	PLB	PLB	PLB	-	PSLB
	43.50	9.625	244.48	0.435	11.05	-	PLB	PLB	PLB	PLB	PLB	PLB	-
	47.00	9.625	244.48	0.472	11.99	-	PLB	PLB	PLB	PLB	PLB	PLB	-
	53.50	9.625	244.48	0.545	13.84	-	PLB	PLB	PLB	PLB	PLB	PLB	-
	58.40	9.625	244.48	0.595	15.11	-	PLB	PLB	PLB	PLB	PLB	PLB	-
	59.40	9.625	244.48	0.609	15.47	-	-	-	P	-	P	-	-
	64.90	9.625	244.48	0.672	17.07	-	-	-	P	-	P	-	-
	70.30	9.625	244.48	0.734	18.64	-	-	-	P	-	P	-	-
	75.60	9.625	244.48	0.797	20.24	-	-	-	P	-	P	-	-
13  3/8"	48.00	13.375	339.72	0.330	8.38	-	-	-	-	-	-	-	-
	54.50	13.375	339.72	0.380	9.65	PSB	-	-	-	-	-	-	PSB
	61.00	13.375	339.72	0.430	10.92	PSB	-	-	-	-	-	-	PSB
	68.00	13.375	339.72	0.480	12.19	PSB	PSB	PSB	PSB	PSB	PSB	PSB	PSB
	72.00	13.375	339.72	0.514	13.06	-	PSB	PSB	PSB	PSB	PSB	PSB