OCTG Seamless Casing For Oil and Gas

Focus is on OCTG (casing, tubing and drillpipe), but we also provide line pipe and specialty tubulars for refineries and high tech applications, are used for a variety of applications including oil and gas well drilling, extracting oil and gas.

Casing and tubing are essential components of oil and gas wells, serving as the structural foundation for the well and protecting it from external forces. At Aoyou, we are a leading manufacturer and supplier of high-quality casing and tubing for the oil and gas industry.

 

Our casing and tubing products are designed to meet the highest industry standards and undergo strict quality control checks to ensure their durability, reliability, and performance. We offer a wide range of casing and tubing in various sizes, types, and materials to meet the diverse needs of our clients.

Oil casing pipe, also known as OCTG casing, is used to line the walls of oil and gas wells. It is designed to withstand high pressure, temperature, and corrosive environments. At Aoyou, we offer a wide range of oil casing pipes in various sizes, grades, and materials to meet the specific needs of our clients.

Oil well casing is an important component of oil and gas drilling operations. It is used to protect the wellbore and prevent fluids from entering the wellbore. Our oil well casing products are made from high-quality materials and are designed to withstand harsh environments and extreme temperatures.

 

Oilfield casing is a critical component of oil and gas drilling operations. It is designed to withstand the pressure and temperature of the wellbore and provide a stable platform for drilling and production operations. Our oilfield casing products are made from high-quality materials and undergo strict quality control checks to ensure their durability, reliability, and performance.

 

Grades of Casing:

API 5CT J55/K55/N80/L80-1/P110

 

Sizes of Casing:

Diameter: from 4 1/2 inch  to 20 inch  （114.30mm - 508.00mm)

Lenght: R1, R2, R3

 

Types of Casing:

Seamless casing 

Casing coupling

 

Applications: 

oil well extracting casing
borehole casing
borewell casing

 

Connection: 

BTC, STC, LTC

 

Dimension Tolerance of casing pipe

Types of steel tubes	Outer Diameter		Wall Thickness
Cold-rolled tubes	Tube sizes(mm)	Tolerances(mm)	Tolerances(mm)
	＜114.3	±0.79	－12.5％
	≥114.3	－0.5％，＋1％

 

Mechanical Properties of Casing Pipe

Grade	Type	Total elongation under load (%)	Yield strength (min)	Yield strength (max)	Tensile strength min Mpa	Hardness Max (HRC)	Hardness Max(HBW)
J55	-	0.5	379	552	517	-	-
K55	-	0.5	379	552	655	-	-
N80	1	0.5	552	758	689	-	-
N80	Q	0.5	552	758	689	-	-
L80	1	0.5	552	655	655	23	241
P110	-	0.6	758	965	862	-	-

At Aoyou, we have a team of experienced professionals who use advanced manufacturing techniques and equipment to produce high-quality casing and tubing products that meet or exceed industry standards. We are committed to providing our clients with the highest level of service, quality, and value for their money.

 

If you are looking for reliable and high-quality casing and tubing products for your oil and gas drilling operations, look no further than Aoyou. Contact us today to learn more about our products and services and how we can help you with your oil and gas drilling needs.