Cathodic Protection
Turnkey CP Inspection Services
End-to-end cathodic protection inspection for subsea pipelines, risers, and structures. Continuous and gradient survey systems, certified CP personnel, and comprehensive reporting — all delivered as a single managed service.
Complete CP Inspection, Delivered Turnkey
Guard Subsea provides fully managed cathodic protection inspection services to oil and gas subsea contractors. We mobilise the right survey system, deploy qualified and certified CP personnel, and deliver clear, actionable reporting — so your team can focus on operations.
Our CP inspection capability covers both continuous and gradient survey techniques, giving clients a complete picture of protection levels across their subsea assets. Every survey is executed to NACE and DNV standards, with reporting structured to support integrity management and regulatory compliance.
Capabilities
CP Inspection Services
Continuous CP Survey
ROV-deployed continuous potential measurement along pipelines and structures. Real-time data acquisition providing full longitudinal coverage of protection levels across the asset.
Gradient CP Survey
Close-interval gradient survey techniques to identify areas of CP deficiency, coating breakdown, and anode depletion. Precise localisation of protection anomalies for targeted remediation.
Certified CP Personnel
All surveys are executed by NACE-certified and DNV-qualified CP inspectors with extensive offshore and subsea experience. Personnel hold current offshore survival and medical certifications.
ROV Survey Integration
Guard Subsea CP survey systems are fully compatible with work-class and observation-class ROVs. We work alongside your ROV contractor to integrate survey tooling with minimal operational impact.
CP Reporting & Analysis
Detailed post-survey reports covering potential profiles, anode consumption assessments, protection status classifications, and recommended remediation actions — delivered to agreed formats and timescales.
Integrity Management Support
CP inspection data structured to feed directly into your integrity management system. Historical trending, re-inspection interval recommendations, and regulatory compliance documentation.
Our Approach
From Mobilisation to Final Report
Scope & Survey Planning
Review of asset data, pipeline routing, and client requirements. Survey technique selection — continuous, gradient, or combined — and mobilisation planning.
Equipment Preparation
CP survey system configuration, calibration, and function testing. Reference electrode verification and ROV interface checks completed prior to offshore mobilisation.
Offshore Survey Execution
Certified CP personnel mobilised offshore to execute the survey programme. Real-time data quality monitoring throughout operations to ensure complete, valid coverage.
Data Processing & Analysis
Survey data processed and analysed against protection criteria. Potential profiles reviewed, anomalies identified, and anode consumption rates assessed.
Reporting & Handover
Comprehensive CP inspection report issued covering protection status, findings, and recommendations. Data files and supporting documentation provided for client integrity records.
Discuss Your CP Inspection Requirements
Tell us your asset, location, and timeline — we will confirm survey technique, personnel, and mobilisation schedule.