Subsea Level 2, 3, and 4
Risk-based underwater corrosion survey

Deepwater has developed unique survey equipment and techniques for subsea inspection.

We have been heavily involved in Level II – IV surveys for over 15 years, and as training and inspection requirements have changed, we have rigorously maintained our certifications. Deepwater is a pioneer of true underwater cathodic-protection surveys. We have developed a number of survey techniques that give a true representation of existing conditions and can accurately estimate the remaining life of platform and/or pipeline cathodic-protection systems. We offer services for all aspects of underwater inspections including inspection-scope development, engineered-node selection per MMS requirements, final-report processing and data management and recording.

Inspections performed

• CP potential survey on platforms, risers, and pipelines
• Contact measurements at selected locations (close potential survey)
• Proximity surveys (remote potential surveys)
• Continual CP data logging (Polascan)
• Structural damage survey
• Riser visual inspection
• Select anode inspection
• Bottom survey
• Debris survey
• Sump pile / intake survey
• Flooded-member detection survey
• Close visual weld inspection
• Magnetic particle survey
• U- thickness survey
• Conductor survey
• All inspections meet or exceed the requirements of API RP-2A

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Key factors

1. The best divers

Deepwater has worked with all major diving and ROV companies to provide the best subsea inspections for our clients. Deepwater data recorders and inspectors utilize industry-standard methods to obtain the best possible results.

2. Flexible scope

Deepwater inspection planning and work scope development meets the needs of the client, while also preserving the requirements of API RP-2A. The scope may range from a single cathodic protection survey to a full Level II-III-IV inspection.

3. Concise reporting

Deepwater inspection planning and work-scope development meet the needs of our clients while also preserving the requirements of API RP-2A. The scope may range from a single cathodic-protection survey to a full Level II-III-IV inspection.

4. Unparalleled experience

Deepwater has worked with all major operators over the years performing a vast number of different subsea inspections.