ASSET INTEGRITY
Inspection, Maintenance And Repair (IMR)
Inspection programmes, integrity assessment and repair solutions to support the safe in-service life and requalification of offshore assets.
OUR IMR APPROACH
Maintaining Structural Integrity
IMR is a critical process in offshore oil and gas platforms, subsea infrastructure, and wind farms to ensure operational integrity, safety, and extended asset lifespan. Given the harsh marine environment, offshore structures are exposed to extreme conditions such as corrosion, mechanical fatigue, biofouling, and high pressures, making IMR essential.
Operators of marine structures must maintain structural integrity throughout the in-service life of an asset and when extending its operating life. Inspection, Maintenance and Repair (IMR) plans provide a rational basis for these decisions.
The in-service IMR programme monitors structures to meet the duty holder’s requirements, support safe working practices and achieve verification by the Independent Verifying Body.
A typical inspection programme follows a five-year cycle. Some items are inspected annually and others less frequently, depending on their actual condition and importance. As a routine, 20% or a pre-determined value of all Safety Critical Elements are inspected each year so that all are covered within five years. The schedule can be adjusted when the need is identified.
INSPECTION PROGRAMME
The Annual Inspection Programme
Generally, four inspection levels will be applied to the platforms, considering their exposure category and overall structural condition. The findings identified at each inspection level will determine whether the inspection should proceed to the subsequent level.
To optimize the inspection intervals and scope, a Risk-Based Inspection (RBI) plan should be developed based on the pre-inspection structural analysis and findings from previous inspections. This approach will allow the inspection scope and frequency to be prioritized according to the identified structural risks and criticality of the platform.
- Cathodic protection survey.
- Inspection of all risers, conductors and caissons.
- Close visual inspection of 20% of selected representative welds.
- Non-destructive testing of 20% of selected representative welds.
- Complete global visual inspection of the entire structure.
- Debris and marine growth survey.
- Scour survey.
- Monitoring of items on the damage register during the annual inspection.
Annual inspection reports are monitored and used to update the damage register and modify the IMR programme as necessary.
INSPECTION & REPAIR
From Inspection To Repair
Inspection results provide the main input to integrity assessment. This assessment identifies the necessary repair interventions and informs the design of platform strengthening, modification and repair.
Strengthening, Modification and Repair (SMR) techniques fall into four categories:
- Damage removal.
- Load reduction.
- Localized strengthening and repair.
- Global strengthening and repair.
OUR PROCESS
Our IMR Workflow
Nautic Middle East is capable of conducting the IMR workflow from the planning stage to closeout.
Planning And Mobilization
For above-water and underwater structures, we can offer conventional and advanced technologies with support from certified personnel.
Inspection
We offer a certified inspection team and the equipment required for structural verification.
Engineering And Design
We offer full engineering services for the requalification of offshore assets to obtain the optimum solution.
Strengthening, Modification And Repair (SMR)
We offer a complete or partial execution package as per customer requirements.
Project Closeout
We offer multiple reporting formats to meet customer requirements and deadlines.
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Discuss Your Project
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