Norsok L002 — Pdf [better]

NORSOK L-002 is a key industry standard that defines requirements for the layout, design, and structural analysis of process, drilling, and utility piping systems for offshore oil and gas production facilities.

• ASME B31.3: NORSOK L-002 generally uses ASME B31.3 as the baseline code for pressure design and allowable stresses.
• ASME B16.5 / B16.47: For flange dimensions and ratings.
• NORSOK L-001: This companion standard covers piping and Valves—Materials, specifying the material grades allowed for different service classes.

• Computer Modeling: Detailed stress analysis using software (such as CAESAR II or AutoPIPE) is mandatory for critical lines.
• Fatigue: Due to the dynamic nature of offshore platforms (wave loading, wind, vortex shedding), fatigue analysis is a core requirement.
• Support Spacing: The standard dictates maximum span lengths based on pipe diameter, schedule, and fluid density to prevent sagging and excessive vibration.

4. Design Philosophies

The standard is built upon three core pillars: norsok l002 pdf