Suction lines must be kept as short as possible without any physical pockets where vapor can collect. Horizontal line size reductions at pump inlets must utilize to mitigate gas pockets. Vertical piping must use concentric reducers. Upstream piping must provide a straight run of at least 5 pipe diameters to prevent unbalanced liquid flow from damaging double-suction pumps. 5. Structural Analysis and Stress Criteria
NORSOK L-002 does not stand alone. To execute a piping project successfully, it must be used in conjunction with adjacent standards in the "L" (Piping/Plumbing) series:
Many engineering firms maintain enterprise-level subscriptions to databases like Sector Archive or Standards Norway, granting all internal engineers direct access to the latest PDF versions. 5. Summary of NORSOK L-002 Core Focus Areas Focus Area Engineering Objective Key Consideration Space Management Eliminate clashing and maintain escape routes. Minimum head clearance of 2.1 meters in main walkways. Valves & Instruments Ensure operational safety and ease of maintenance. Locate heavy control valves near structural steel supports. Drainage & Venting Enable complete system isolation and blowdown. High-point vents and low-point drains on all process lines. Material Handling Facilitate easy removal of heavy equipment.
: Ensure standard process lines follow exact spatial flow sequences and pitch requirements to function via gravity where required. norsok l002 pdf
: Small-bore utility and instrument lines must be batched together along shared corridors to minimize structural steel support footprints.
The standard is designed to replace individual oil company specifications with a unified set of requirements to enhance safety, cost-effectiveness, and reliability on the Norwegian Continental Shelf (NCS).
NORSOK standards are owned by the Norwegian petroleum industry, represented by the Norwegian Oil and Gas Association and the Federation of Norwegian Industries, and are administered by Standards Norway. They are designed to replace individual oil company specifications for use in existing and future petroleum industry developments. Suction lines must be kept as short as
: The standard relies on ASME B31.3 Process Piping as its primary code baseline.
The Norwegian Petroleum Directorate (NPD) often references these standards.
Piping networks must withstand operational loads, environmental impacts, and accidental hazards. Upstream piping must provide a straight run of
: Layout engineers must leave physical gaps between adjacent lines to allow blasting and painting access over the asset's lifecycle.
The standard provides rigid guidelines on spatial arrangement to ensure safety and accessibility: