Oilfield Seamless Steel Casing Pipe 4.5-20 Inch J55 K55 L80 N80 P110 API 5CT Certified
Price:
Negotiable
MOQ:
1 metric ton
Delivery Time:
Negotiable
Brand:
Zhongshi
Product Description
Oilfield Seamless Steel Casing Pipe Overview
Oil casing is large diameter seamless pipe assembled and inserted into drilled borehole sections, typically secured with cement for structural integrity and well stability.
Product Specifications
Available Sizes and Grades
We provide comprehensive seamless casing solutions ranging from 4-1/2" to 20" diameters with steel grades including J55, K55, N80, L80, and P110. Standard length ranges include R1, R2, R3 with thread types BTC, LTC, and STC.
Technical Specifications Table
| Outside Diameter | Wall Thickness | Steel Grade | Thread Type |
|---|---|---|---|
| 4 1/2" (114.3 mm) | 14.14-22.47 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 5" (127 mm) | 17.11-35.86 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 5 1/2" (139.7 mm) | 20.83-64.14 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 6 5/8" (168.28 mm) | 29.76-47.62 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 7" (177.8 mm) | 25.30-84.98 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 7 5/8" (193.68 mm) | 35.72-82.30 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 8 5/8" (219.08 mm) | 35.72-72.92 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 9 5/8" (244.48 mm) | 48.07-112.51 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 10 3/4" (273.05 mm) | 48.74-126.94 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 11 3/4" (298.45 mm) | 62.50-105.66 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 13 3/8" (339.73 mm) | 71.43-107.15 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 16" (406.4 mm) | 96.73-162.21 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 18 5/8" (473.08 mm) | 130.22 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
| 20" (508 mm) | 139.89-197.93 kg/m | J55/K55/N80/L80/P110 | STC/LTC/BTC |
Mechanical Properties
| Steel Grade | Tensile Strength (MPa) | Yield Strength (MPa) | Elongation (%) | Hardness |
|---|---|---|---|---|
| J55 | ≥517 | 379-552 | 0.5 | - |
| K55 | ≥655 | 379-552 | 0.5 | - |
| N80 | ≥689 | 552-758 | 0.5 | - |
| L80 | ≥655 | 552-655 | 0.5 | ≤241 HB |
| P110 | ≥862 | 758-965 | 0.5 | - |
Key Features
- Comprehensive size range from 4-1/2" to 20" seamless casing
- Manufactured using hot-rolled pipe technology for superior strength
- Multiple steel grades for diverse well depth requirements
- Corrosion-resistant options for challenging environments
- Enhanced anti-collapse performance for complex geological conditions
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Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.
Company
Puyang Zhongshi Group Co., Ltd.
Location
Room2212, B Building, Tiandi Times Square, Weiyang District, Xi'an City, Shaanxi P.R., China
Contact Person
Liza