Product Introduction
J55 casing pipe is a medium-to-low-strength oil casing steel pipe suitable for wellbore protection and casing support in shallow-to-medium-depth oil, gas, and water wells.
Product Parameters
|
Product Name |
API 5CT J55 Oil Casing Steel Pipe |
|
Out Diameter |
4 1/2"-20"(114.3-508mm) |
|
Wall Thickness |
5-30mm |
|
Length |
R1(4.88-7.62m), R2(7.62-10.36m), R3(10.36-14.63m) |
|
Material Standard |
API 5CT |
|
Type of Connection |
SC, LC, BC |
|
Surface |
Antirust Coating, color black, red, green etc. |
|
Packing |
Plastic Film, Plastic Cap, Bundle, Woven bag, Wooden Case, Iron Frame |
|
Delivery |
Within 3 days with stock, 15-50 days based on production |
|
Payment |
T/T, D/P, L/C at sight, Usance L/C etc. |
Chemical Requirements
|
Composition, % |
|||||||||
|
Grade |
C |
Mn |
Mo |
Cr |
Ni |
Cu |
P |
S |
Si |
|
J55 |
- |
- |
- |
- |
- |
- |
- |
0.030max |
- |
Mechanical Property
|
Grade |
Tensile strength min Mpa |
Yield strength min-max Mpa |
|
J55 |
517 |
379-552 |
Product Features
Corrosion Resistance
The pipe surface is heat-treated and coated with an anti-rust coating to protect against corrosion from well fluids and groundwater, extending its service life by 5-7 years.
Precision Machining
Thread and outer diameter tolerances are +0.2mm, and CNC machining ensures tight connections, reducing the risk of downhole leakage.
Wide Application
The J55 casing pipe is suitable for oil, gas, geothermal, and water well drilling, providing wellbore support and casing protection.
Customizable
Can be customized in length, diameter, and thread type to meet different drilling depth and equipment requirements.
Product Application
Oil Drilling Industry
In the oil drilling industry, J55 casing pipe is primarily used to support the wellbore structure and prevent wellbore collapse, ensuring safe drilling operations while maintaining drilling fluid pressure balance and improving drilling efficiency.
Natural Gas Extraction
During natural gas extraction, J55 casing is used to withstand the stresses of high-pressure gas flow, protect the wellbore integrity, and prevent abnormal downhole pressure from causing pipeline deformation or leakage.
Geothermal Energy Development
In geothermal energy development, J55 casing withstands the impact of high-temperature, high-pressure fluids, maintaining wellbore stability while preventing hydrothermal fluids from entering the wellbore and damaging equipment.
Water Well and Mine Construction
In water well and mine construction, J55 casing is primarily used to support the wellbore, preventing collapse and mud intrusion, while providing safe passageways for smooth construction and maintenance operations.
Petrochemical and Chemical Industry
In petrochemical and chemical engineering, J55 casing is used to transport corrosive liquids and gases, ensuring pipeline structural stability and reducing leakage and equipment corrosion.
Product Show
The inner and outer surfaces of the casing shall not have folds, hairlines, delaminations, cracks, folds and scars. These defects shall be completely removed, and the removal depth shall not exceed 12.5% of the nominal wall thickness.
Product Packing
Our company formulates a special packaging plan for each order. For small-sized (OD≤89mm) stainless steel pipes, we use wooden boxes for packaging; for medium-sized (114.3mm≤OD≤273mm) steel pipes, we use bundled packaging. Covered with woven bags; for large-size (OD>273mm) steel pipes, we use single packaging, covered with woven bags.
Why Choose us
We offer stainless steel pipe, alloy steel pipe, duplex steel pipe, pipe fittings, and flanges.
We offer factory direct pricing.
Our products are exported to the Middle East, South America, Southeast Asia, and other regions.
We provide 24/7 pre-sales and after-sales service.
Leave a message to us if you need API 5CT J55 oil casing steel pipe.
Email: johnny@yqpipeline.com
WhatsApp: +86 15632733100
Tel: +86 317 6376727
FAQ
Q: What is J55 casing pipe used for?
A: J55 casing pipe is primarily used in oil and gas drilling operations. It serves as a protective lining for the borehole, preventing the well walls from collapsing and isolating different pressure zones and fluids within the well.
Q: What are the mechanical properties of J55 casing pipe?
A: J55 casing pipe has a minimum yield strength of 55,000 psi (379 MPa) and a tensile strength of 75,000–95,000 psi (517–655 MPa). These properties make it suitable for shallow to moderate-depth wells under low to moderate pressure conditions.
Q: How does J55 differ from other API 5CT casing grades like N80 or L80?
A: Compared to N80 or L80, J55 has lower strength and hardness, making it more cost-effective but less suitable for deep or high-pressure wells. N80 and L80 are preferred when higher collapse resistance or sour service is required.
Q: Is J55 casing pipe suitable for sour service environments?
A: No, standard J55 is not suitable for sour service due to its susceptibility to hydrogen sulfide (H₂S) corrosion. For sour environments, grades like L80-13Cr or specially treated materials are recommended.
Q: What are the common sizes and connections for J55 casing pipe?
A: J55 casing pipe is available in sizes ranging from 4½ inches to 20 inches in outer diameter. Common connection types include API BTC (Buttress Thread), LTC (Long Thread), and STC (Short Thread).
Hot Tags: j55 casing pipe, China j55 casing pipe manufacturers, suppliers, factory, , casing pipe borewell, N80 Q Steel Casing Pipe