End‑to‑End Pipeline Lifecycle Support
There are pipeline integrity risks you face, and here is how OSC Marine Group helps you inspect, monitor, repair, and extend the life of critical assets. Our core strengths are rapid deployment, deep water expertise, turnkey solutions, regulatory compliance, and reporting for data-driven decision making.
Core Pipeline Services
- Pipeline Survey and Assessment Engineers assess structural integrity and serviceability across a wide range of pipeline sizes using external surveys, in-line inspection interfaces, and seabed mapping.
- Non-Destructive Testing and Evaluation We provide multiple NDT and NDE options tailored to your data requirements to detect corrosion, cracking, metal loss, and defects without damaging assets.
- ROV and Drone Pipeline Inspections deliver rapid data collection, high-resolution imaging, and access to limited or hazardous areas with minimal disruption.
- Subsea Leak Detection and Monitoring Real-time remote pressure sensors and large-scale leak detection systems locate leaks within seconds and enable immediate response.
- Emergency Response and Repair 24/7 on-call subsea engineers, ROV pilots, and commercial diving teams execute pre-planned emergency repair strategies including in-field composite wraps, smart clamps, and cofferdam solutions to stabilise and restore asset integrity quickly.
- Hyperbaric Welding and Cofferdams Specialist hyperbaric dry and local‑dry welding procedures for steel pipelines, supported by experienced habitat and cofferdam design teams. IO cofferdams enable in‑situ near‑shore and intermediate operations with minimal shutdown time.
- Pipeline Integrity Management Fitness-for-service assessments, predictive modeling, 4D condition monitoring, and regulatory audit support to ensure long-term reliability.
Contact OSC Marine to discuss pipeline inspection, integrity assessment, leak detection, or emergency repair support for your offshore and nearshore assets.
Non-Destructive Testing and Evaluation
Commonly used techniques:
- Ultrasonic Testing (UT) for wall thickness measurement and metal loss quantification.
- Magnetic Flux Leakage (MFL) for corrosion assessment.
- Remote Visual Inspection (RVI) with high-resolution video.
- Eddy Current and EMAT for crack detection and flaw sizing.
- Acoustic and Hydrophone Methods for leak detection and characterisation.
Our approach: We select the optimal combination of NDT methods based on inspection objectives; no single technique covers every requirement. Our experts operate the tools to deliver flexible, customized inspection solutions.
Robotics, ROVs, and Drone Capabilities with OSC Marine
ROV Advantages: rapid data collection; high-resolution imaging; deep water reach; minimal surface disruption; cost-effective for large terrain coverage.
Drone Advantages: efficient aerial mapping; access to restricted or hazardous areas; fast, low-cost data capture for shoreline and near-shore assets.
Robotic NDT Design: our robotic solutions are engineered for tethered subsea NDT, producing repeatable, actionable, and preventative data for challenging offshore applications.
Leak Detection and Continuous Monitoring
ProFlex Pipe‑Safe™ and Remote Sensors: remote pressure sensors deployed at intervals up to 16 km provide permanent monitoring and real-time analysis.
Benefits: leak detection and location within seconds; reduced environmental impact; minimal manual inspections required.
Targeted inspection follow-up: localised scanning and structural assessment to confirm root cause and select the fastest, safest repair route
Emergency Response and Pipeline Repair with OSC Marine
24/7 On-Call Expertise including subsea engineers, ROV pilots, and commercial diving teams ready at a moment’s notice to stabilise incidents and shorten shutdown windows.
Comprehensive damage assessments include immediate ROV mapping, diver support, and stability analysis to confirm pipeline repair feasibility and define the safest intervention.
Rapid repair options include in-field composite wrap systems, smart clamps, cofferdam deployment for submerged HDPE joints, and specialist hyperbaric welding.
Pre-planned emergency pipeline repair solution (EPRS): designed to restore integrity as fast as possible without compromising safety or compliance.
Hyperbaric Welding and Cofferdam Services
Specialist welding: hyperbaric dry welding and local dry habitat welding for steel pipelines with certified procedures and experienced hyperbaric design teams.
Cofferdam deployment: IO cofferdams for near-shore and intermediate water depths enabling in-situ repairs with minimal surface preparation and shut-down time.
Reporting Deliverables and Data Analysis
Post-inspection deliverables: in-depth reports with HD video footage, detailed assessments, and clear actionable recommendations.
Data features: geotagged imagery, time-stamped sensor logs, 4D condition reporting, and structured outputs suitable for analysis and third-party audit.
Client outcomes: informed maintenance decisions, prioritized repairs, and long-term pipeline reliability.
Fitness-for-Service Assessments
Included checks: weld and bolt inspection; wall thickness measurement; metal loss quantification; pit, crack and defect sizing; remote visual inspection of offshore platforms.
Outcome: clear engineering recommendations for repair, replacement, or life-extension based on structural integrity and serviceability.
Industries Served
- Offshore oil and gas pipelines
- Near-shore and coastal pipeline networks
- Marine infrastructure operators
- Utilities and industrial pipeline owners
- Environmental and regulatory agencies
Contact us to speak to our inspection team about protecting pipeline integrity through condition monitoring, subsea inspection, damage assessment, and tailored maintenance solutions.
Frequently Asked Questions
What is non-destructive testing?
Non-destructive testing, or NDT, is a way of checking the condition of materials, structures or equipment without harming them. It allows OSC Marine inspectors to detect defects, corrosion, cracking or material loss while keeping the asset safe for continued use.
Can NDT be performed underwater?
Yes. NDT can be performed underwater using qualified commercial divers, ROV-mounted tools or specialist robotic systems. Subsea NDT allows OSC Marine to assess pipelines, welds and structures without dry-docking or removing the asset from service.
What is ultrasonic testing?
Ultrasonic testing is an NDT technique that uses high-frequency sound waves to examine materials from the inside. It helps measure thickness and identify issues such as cracks, corrosion, wall loss or weld defects without cutting into or damaging the asset.
What is corrosion?
Corrosion is the breakdown of metal caused by reactions with its surrounding environment, such as seawater, oxygen or chemicals. Over time, it can weaken pipelines, reduce wall thickness, create leaks and compromise the structural integrity of marine and subsea assets.
How to prevent corrosion?
Corrosion can be reduced through protective coatings, cathodic protection, suitable material selection, routine cleaning, regular inspections and early maintenance. For subsea pipelines, ongoing monitoring and NDT inspections help detect corrosion early and support timely repair decisions.
Who is SONAMATIC and PIPECARE?
SONAMATIC and PIPECARE are specialist pipeline inspection and integrity partners with the OSC Marine Group. SONAMATIC provides advanced NDT, subsea inspection and integrity engineering, while PIPECARE delivers in-line inspection, pipeline cleaning and integrity services using technologies such as Magnetic Flux Leakage (MFL), Ultrasonic Testing (UT) and Electromagnetic Acoustic Transducer (EMAT).
