Liaocheng Development Zone Ruixing Steel Pipe Manufacturing Co., Ltd.

API Casing

Application：Oil well casing serves as well sidewall
Pipe Standard：API SPEC 5CT
Size：OD: 114.3-508mm,WT: 5.21-16.13mm
Process Type: Seamless (SMLS), Electric Resistance Welded (ERW)
Grade: J55, K55, N80-1, N80-Q, L80-1, L80-9Cr, L80-13Cr,C95, P110.
Thread types:STC, LTC, BTC etc

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jane@ruixingmetal.com

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Product Details

Description

Casing is used for lining the complete borehole which has been dug into the ground to procure oil. Similar to the drill pipe, the oil well casing pipe is also subjected to axial tension, therefore they are required to be made from high-quality strong steel material. OCTG casing is large diameter pipe which are held in place in the borehole using cement.

The diameters of OCTG casing pipe range from 4.5″ to 36″. The well-cemented pipe acts as the structural component of the well and offer hole integrity. They prevent the well from collapsing when the drilling process is on. Good quality, well cemented casing can stay in place for the whole life of the well.

The oil well casing pipe are further divided into:

Conductor Casing – Conductor casing is the first boundary between the surface and the subsurface. It helps prevention of well collapse; it keeps away the groundwater and most importantly provides structural support. Conductor casing is installed in the ground by either drilling it or hammering it down. They are available in sizes ranging from 18″ to 36″.

Surface Casing – The purpose of Surface casing is primarily environmental and to ensure safety. It helps in separating the freshwater zones, offering protection from blowout and supporting the wellhead and blow out prevention equipment. Therefore surface casings are required to maintain very high safety standards. They are responsible for supporting the next casing in line. They may vary in size depending on their purpose, but the most common size of surface casing is 13 3/8”.

Intermediate Casing: Intermediate casing is not always required in all types of oil and gas production. If used, they are placed between the surface and the production casing. They are available in sizes ranging from 13 3/8” to 16”.

Production Casing – Production casing help provide structural integrity and pressure control of the hydrocarbon-bearing sections mainly during the production of oil.

Production Liner – Production liners can be suspended from the production casing or one of the previous casings. They help in reducing the cost significantly as the liner is not required to run through the full depth of the well. Liners can be pre-perforated to help save time and cost.

More casing pipes and their colors

Specification&Standard

API 5CT Well Casing Length:

API 5CT Casing	Range 1	Range 2	Range 3
API 5CT Casing	4.88~7.62	7.62~10.36	10.36~14.63

Dimension

Labels		OD(mm)	WT(mm)	J55/K55	N80	L80	C90/T95	P110	Q125
4 1/2	9.5	114.3	5.21	PS	-	-	-	-	-
	10.5	114.3	5.69	PSB	-	-	-	-	-
	11.6	114.3	6.36	PSLB	PLB	PLB	PLB	PLB	-
	13.5	114.3	7.37	-	PLB	PLB	PLB	PLB	-
	15.1	114.3	8.56	-	-	-	-	PLB	PLB
5	11.5	127	5.59	PS	-	-	-	-	-
	13		6.43	PSLB	-	-	-	-	-
	15		7.52	PSLBE	PLBE	PLBE	PLBE	PLBE	-
	18		9.19	-	PLBE	PLBE	PLBE	PLBE	PLBE
	21.4		11.10	-	PLB	PLB	PLB	PLB	PLB
	23.2		12.14	-	PLB	PLB	PLB	PLB	PLB
	24.1		12.7	-	PLB	PLB	PLB	PLB	PLB
5 1/2	14	139.7	6.20	PS	-	-	-	-	-
	15.5		6.98	PSLBE	-	-	-	-	-
	17		7.72	PSLBE	PLBE	PLBE	PLBE	PLBE	-
	20		9.17	-	PLBE	PLBE	PLBE	PLBE	-
	23		10.54	-	PLBE	PLBE	PLBE	PLBE	PLBE
	26.8		12.7	-	-	-	P	-	-
	29.7		14.27	-	-	-	P	-	-
	32.6		15.88	-	-	-	P	-	-
	35.3		17.45	-	-	-	P	-	-
	38		19.05	-	-	-	P	-	-
	40.5		20.62	-	-	-	P	-	-
	43.1		64.14	-	-	-	P	-	-
6 5/8	20	168.28	7.32	PSLB
	24		8.94	PSLBE	PLBE	PLBE	PLBE	PLBE	-
	28		10.59	-	PLBE	PLBE	PLBE	PLBE	-
	32		12.06	-	PLBE	PLBE	PLBE	PLBE	PLBE
7	20	177.8	6.91	PS
	23		8.05	PSLBE	PLBE	PLBE	PLBE	-	-
	26		9.19	PSLBE	PLBE	PLBE	PLBE	PLBE	-
	29		10.6		PLBE	PLBE	PLBE	PLBE
	32		11.51		PLBE	PLBE	PLBE	PLBE
	35		12.65		PLBE	PLBE	PLBE	PLBE	PLBE
	38		13.72		PLBE	PLBE	PLBE	PLBE	PLBE
7 5/8	26.4	193.67	8.33	PSLBE	PLBE	PLBE	PLBE	-	-
	29.7		9.52	-	PLBE	PLBE	PLBE	PLBE	-
	33.7		10.92	-	PLBE	PLBE	PLBE	PLBE	-
	39		12.7	-	PLBE	PLBE	PLBE	PLBE	PLBE
	42.8		14.27	-	PLB	PLB	PLB	PLB	PLB
	45.3		15.11	-	PLB	PLB	PLB	PLB	PLB
	47.1		15.88	-	PLB	PLB	PLB	PLB	PLB
8 5/8	24	219.08	6.71	PS	-	-	-	-	-
	28		7.72	-	-	-	-	-	-
	32		8.94	PSLBE	-	-	-	-	-
	36		10.16	PSLBE	PLBE	PLBE	PLBE	-	-
	40		11.43	-	PLBE	PLBE	PLBE	PLBE	-
	44		12.70	-	PLBE	PLBE	PLBE	PLBE	-
	49		14.15	-	PLBE	PLBE	PLBE	PLBE	PLBE
9 5/8	36	244.48	8.94	PSLB	-	-	-	-	-
	40		10.03	PSLBE	PLBE	PLBE	PLBE	-	-
	43.5		11.05	-	PLBE	PLBE	PLBE	PLBE
	47		11.99	-	PLBE	PLBE	PLBE	PLBE	PLBE
	53.5		13.84	-	PLBE	PLBE	PLBE	PLBE	PLBE
	58.4		15.11	-	PLB	PLB	PLB	PLB	PLB
10 3/4	40.5	273.05	8.89	PSB	-	-	-	-	-
	45.5		10.16	PSBE	-	-	-	-	-
	51		11.43	PSBE	PSBE	PSBE	PSBE	PSBE	-
	55		12.57	-	PSBE	PSBE	PSBE	PSBE	-
	60.7		13.84	-	-	-	PSBE	PSBE	PSBE
	65.7		15.11	-	-	-	PSB	PSB	PSB
113/4	47	298.45	9.53	PSB	-	-	-	-	-
	54		11.05	PSB	-	-	-	-	-
	60		12.42	PSB	PSB	PSB	PSB	PSB	PSB
13 3/8	48	339.72	8.38	-	-	-	-	-	-
	54.5		9.65	PSB	-	-	-	-	-
	61		10.92	PSB	-	-	-	-
	68		12.19	PSB	PSB	PSB	PSB	PSB	-
	72		13.06	-	PSB	PSB	PSB	PSB	PSB
16	75	406	11.13	PSB	-	-	-	-	-
	84		12.57	PSB	-	-	-	-	-
	109		16.66	P	P	P	-	P	P
20	94	508	11.13	PSLB	-	-	-	-	-
30	96	762	16.13	PSLB	-	-	-	-	-
P-Plain end; S-Short round thread; L-Long round thread; B-Buttress thread; E-Extreme line;

Process

The manufacturing process of API casing

Steel ingot heating → hydraulic punching → reheating → extension → periodic rolling → reheating → sizing → cooling → straightening → pipe cutting → inspection

1. An annular heating furnace is required for ingot heating;

2. Punching and reheating with the hydraulic press;

3. The oil casing plant uses a two-roller guide plate extension machine for extension;

4. Re-use a disc heating furnace for periodic rolling, and use a non-entry furnace for reheating, cooling, straightening, pipe cutting, and inspection.

FACTORY APPEARANCE

Ruixing Steel Pipe was established in 2000. The company is located in Liaocheng, a well-known water city in Jiangbei, with convenient transportation. The company has tens of thousands of square meters of factory buildings, strong capital, and sufficient supply. trust.
Company products: stainless steel series, carbon steel series, aluminum series, copper series, galvanized, color coated, coiled material, seamless pipe, welded pipe, square pipe, torque pipe, round steel, angle steel, channel steel, I-beam, hexagon Steel, square steel, flat steel, steel wire, welding rod, flange cutting parts and other stainless steel and high nickel alloy steel.

CLIENT FEEDBACK

The company's products are not only well received by domestic customers, but also exported to more than 50 countries such as the European Union, the United States, Australia, Southeast Asia, and the Middle East, and have established long-term and stable cooperative relations with them. Ruixing Steel Pipe welcomes new and old customers at home and abroad to visit and negotiate for win-win cooperation!

APPLICATION FIELD

The products distributed by our company are guaranteed by the manufacturer, and have a complete pre-sale, in-sale and after-sales service system. Our company has a strong standing stock of thousands of tons, sufficient supply and complete specifications. It has formed an annual inventory turnover of more than 9,000 tons and more than 800 specifications.

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QUALITY INSPECTION

We stick to the principle of "quality first, service first, continuous improvement and innovation to meet the customers" for the management and "zero defect, zero complaints" as the quality objective. We′re pleased to get your Inquiry and we will come back to as soon as possible.

Quality Inspection

PACKING AND SHIPPING

Packing and shipping

API Casing