Project Description
Small Size Tubing
Detailed Product Description
Tubing is inserted into wells for production or injection purposes. Typically, tubing with an outer diameter ≤2-1/16″ (52.4mm) is considered small tubing. It is mainly used for water injection, oil production, or extracting gas from oil-bearing layers.
Main Types
- API Standard:
- NU (Plain End, Coupled): Not thickened, with couplings.
- EU (External Thickened, Coupled): Thickened externally, with couplings.
- IJ (Integral Joint, Uncoupled): With integral joints, without couplings.
- Non-API:
- CB-IJ (Direct Connect, Uncoupled): Direct connect design, without couplings.
- CB-FJ (Direct Connect, Uncoupled, Gas-tight Thread): Direct connect design, without couplings, with gas-tight threads.
- Main Steel Grades: J55, N80, L80, P110, etc.
Compliance Standards
- API SPEC 5CT
- API SPEC 5B
Product Features
- Ranking of Outer Diameter Size of Joints: EU > NU > IJ > CB-IJ > CB-FJ;
- Ranking of Inner Diameter Size of Joints: CB-IJ = EU = NU > CB-FJ > IJ;
- Ranking of Joint Connection Strength: EU > IJ > CB-IJ > NU > CB-FJ;
- Product Performance depends on: The dimensions of the tubing body (outer diameter, wall thickness), and steel grade.
Product Specifications Range
Outer Diameter: Φ26.67mm ~ Φ48.26mm; Wall Thickness: 3.18mm ~ 3.68mm.