Safeguarding Subsea Pipeline Integrity

Beneath the waves, subsea pipelines face hidden challenges that threatens reliability. we deliver the innovation, precision, and reliability to keep them performing at their best


At Porto Marine Services, we don't just repair pipelines we safeguard their integrity. Using advanced inspection methods and proven subsea repair technologies, we uncover the unseen, assess with precision, and restore performance with solutions built for the harshest offshore environments. Our certified processes ensure safety, efficiency, and long-term reliability, transforming complex challenges into trusted results.

Strengthening Offshore Conductors with Dorsal Centralizer

Offshore conductors are critical to drilling operations, yet they face continuous stress from waves and currents that leads to vibration, coating breakdown, and long-term fatigue. Left unprotected, these forces can significantly shorten service life and increase maintenance costs.

The Dorsal Centralizer is engineered to counter these challenges. Its elastomeric design absorbs external forces, eliminates point loads, and reduces dynamic stresses on the conductor and guideframe ensuring safer, longer-lasting operations. With rapid offshore installation, customizable configurations, and life-of-field reliability, Dorsal provides operators with a cost-effective solution that enhances integrity and reduces risk.

Key Advantages of Dorsal Centralizer

  • Reduced Cost of Asset Ownership
  • Improved Asset Integrity Assurance
  • Customised Design
  • Efficient Installation

Advanced NDT Solutions

We deliver advanced integrity assurance solutions through cutting-edge Non-Destructive Testing (NDT) solutions designed to enhance asset integrity and ensure safe, reliable operations across offshore and onshore environments. Our approach focuses on accurate detection, sizing, and monitoring of defects in pipelines, risers, and critical infrastructure, enabling operators to address potential issues before they impact performance. By combining precision inspection with rapid deployment, we help manage asset health, reduce downtime, and ensure reliable performance in the harshest environments.

We achieve this through a range of advanced NDT techniques, including:

Advanced NDT Solutions

Subsea NDT Solutions


Subsea PAUT and ToFD

Subsea PAUT and ToFD

Subsea EMAT

Subsea EMAT

Subsea PECA

Subsea PECA

Subsea Digital Radiography (DR)

Subsea Digital Radiography (DR)


Topside NDT Solutions


AUT

AUT

PAUT

PAUT

ToFD

ToFD

EMAT

EMAT

PECT

PECT

FMC & TFM

FMC & TFM

LRUT

LRUT

M-Skip

M-Skip

ROV Tooling

PMS provides a comprehensive range of standard and custom ROV tooling solutions, designed to support subsea intervention, inspection, cutting, and cleaning operations.

Standard & Custom Tooling

Standard & Custom Tooling

• Class I–IV Torque Tools
• FLOTS (Flying Lead Orientation Tools)
• Torque Verification Buckets
• ROV Valves and Docking Probes
• Belly and Backpack Skids
• Bespoke tooling with technical support

Cleaning Equipment

Cleaning Equipment

• Cleaning Brush
• Wellhead cleaning tool.

Cutting Equipment

Cutting Equipment

• Specialist conductor cutting for 20” pipes.
• HCV270 Refurbishment and Upgrade
• Compact DWS system designed for operations
with as little as 100 mm clearance on one side
and 750 mm on the other.