Dnv-rp-f118 -

is a recommended practice developed by DNV (Det Norske Veritas) that provides technical guidelines for the use of wireline-deployed tools to detect and locate leaks in pipelines and risers. As oil and gas infrastructure ages, the integrity of pipelines becomes a critical safety and environmental concern. This document outlines the methodology, planning, execution, and interpretation of data for wireline leak detection surveys, ensuring a standardized and reliable approach to integrity management.

provides the rigorous, probabilistic, and lifecycle-based framework to ensure that risers don’t just survive—they thrive under extreme conditions. From the initial design through installation and 30-year service, this recommended practice gives operators, certifying authorities, and engineers a common language for risk management. dnv-rp-f118

Proving the general capabilities of a new or modified AUT system. Project-Specific Validation: is a recommended practice developed by DNV (Det

Always cross-reference with DNV-ST-F101 (subsea pipeline systems) for design requirements – RP-F118 complements the standard for in-service assessment. Because in congested offshore fields

Consider a 10-inch gas pipeline crossing a low-relief slope exhibiting 5 cm/year creep.

Why would a pipeline RP discuss mooring lines? Because in congested offshore fields, anchor lines from FPSOs and semi-submersibles often cross, rest on, or pass dangerously close to subsea pipelines and umbilical cords. A single mooring line failure can cause a chain reaction: a drifting vessel drags its anchors, which snag and rupture a gas pipeline, leading to a major incident.