Unpiggable Pipelines

Proven Inspection Solutions Unpiggable Loading Lines

Unpiggable loading and offloading pipelines often contain sludge, wax, and debris, posing serious risks to operations, safety, and the environment. Their complex layouts, tight bends, and lack of pigging access make traditional inspections impossible, leaving operators blind to corrosion, wall loss, and mechanical damage. TRITON changes that.

This bi-directional, robotic crawler with the ART Scan technology delivers continuous, 360° wall-thickness data in both directions with sub-millimetre accuracy, even in the harshest, liquid-filled pipelines with little or no cleaning or flushing, delivering quantifiable pipeline integrity data, safely, efficiently, and without compromise.

Unseen Threats in Unpiggable Loading Lines

Loading and crude oil pipelines are high-value, high-risk assets. A single leak or rupture can halt exports, trigger costly emergency repairs and create serious environmental hazards.

Loading and offloading lines carry crude oil or refined products from offshore facilities, platforms or FPSOs, directly to onshore terminals or pipeline networks.

Their layouts often include bends and risers and lack pig-launch or receive facilities, or offer only a single access point. Over time, debris, sludge, and wax accumulate inside the pipes, obstructing conventional NDT techniques and preventing accurate wall-thickness measurements. As a result, these lines frequently go uninspected, leaving the integrity unknown and operators exposed to hidden corrosion, mechanical damage and wall-loss anomalies.

Subsea Pipeline Inspection with TSC Subsea ARTEMIS

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Bi-Directional Inspection Through Sludge, Wax, and Debris

TRITON bi-directional tethered robotic crawler + ART Scan module provides continuous 360° wall-thickness measurements in both travel directions for full data validation, even through debris, sludge, and wax with minimal or no cleaning required, turning “unpiggable” into “piggable.” ART Scan uses proprietary Acoustic Resonance Technology (ART) for accurate, quantifiable in-line inspection with high efficiency and minimal production downtime.

Equipped with high-torque dual crawlers, TRITON provides the power and traction to overcome friction in tight bends and vertical sections, ensuring seamless, end-to-end coverage even in the harshest, liquid-filled pipelines.

Smart & Efficient Inspection Benefits

1

Minimal or No Cleaning.

Accurate wall-thickness data through debris, sludge, and wax, with less prep and downtime.

2

Field Proven Power.

High torque crawlers to overcome friction in long runs, tight bends, and verticals with ease.

3

Quantitative Data.

Leverage NDT Global’s best-in-class ART Scan ILI module for confident, actionable decisions.

Technology That Makes the Unpiggable Inspectable

TRITON Crawler

Adaptable Chassis: Triple, independently powered expandable tracks fit pipe size ranging from 8 in – 42 in.
High-Torque Drive: Smooth navigation through tight bends and vertical climbs, overcoming high friction.
Extended Reach: Field-proven on runs up to 1,600 m for long-distance pipeline coverage.

Triton specification sheet

ART Scan ILI Module

Ultra-Wideband Acoustic Resonance Technology: Continuous, circumferential wall-thickness mapping with sub-millimetre accuracy.
Non-Contact Sensors: Penetrate sludge, debris and wax, minimal or no cleaning or flushing required.
Full Geometry Survey: Detects dents, buckles and ovality alongside wall thickness measurements.

Data-Driven Insights

Quantifiable Integrity Data: High-resolution, full-coverage results that support confident decision-making.
Sub-millimetre Accuracy: Provides wall thickness measurements for detecting both internal and external corrosion.
Full Data Validation: Collect data on both outbound and return, ensuring complete inspection coverage.