Refineries & Petrochemical Plants
Structural Integrity Management for complex onshore process facilities in aggressive industrial environments.
Petrochemical facilities rely on complex networks of structural steel frameworks, pipe racks, equipment supports, access platforms, and maintenance structures that operate continuously in aggressive industrial environments. Over time, these structures can experience deterioration from corrosion, vibration, thermal cycling, chemical exposure, and operational modifications.
Structural Integrity Management (SIM) provides a structured engineering approach to monitor, assess, and manage the condition of these assets, ensuring that critical infrastructure remains safe, compliant, and fit for continued service.
SIM combines inspection data, engineering analysis, and risk-based prioritisation to identify degradation early and guide effective maintenance and life-extension decisions.
Where SIM Applies in Petrochemical Plants
Pipe Racks & Process Structures
Pipe rack systems carry large volumes of process piping and utilities across refineries and petrochemical plants. These structures are exposed to corrosion, vibration, thermal expansion loads, and frequent modifications as plants evolve.
Equipment Support Structures
Reactors, heat exchangers, compressors, vessels, and rotating equipment are often mounted on steel structures that must maintain alignment and stability under dynamic loads.
Maintenance Platforms & Access Structures
Walkways, ladders, stair towers, and access platforms must remain structurally sound to ensure safe operations and maintenance access.
Flare Towers & Elevated Structures
These tall structures are exposed to wind, thermal effects, and corrosive gases, requiring periodic reassessment.
Marine Terminals and Loading Jetties
Where petrochemical facilities interface with marine export infrastructure, structural systems face additional corrosion and wave loading.
Typical Structural Integrity Challenges
Petrochemical facilities commonly experience:
- Localised corrosion at pipe rack beams and supports
- Corrosion under insulation (CUI) affecting structural members
- Overloading due to process modifications or additional piping
- Vibration-induced fatigue from rotating equipment
- Fire and blast exposure risks in process areas
- Structural damage caused by plant modifications
Without systematic integrity management, these issues can lead to unplanned shutdowns, safety risks, and costly emergency repairs.
How HPG Engineering Limited Can Help
HPG Engineering Limited provides specialist structural integrity services tailored to petrochemical and refinery environments, supporting operators in maintaining safe and reliable facilities.
Structural Condition Assessments
Inspection review and engineering evaluation of pipe racks, equipment supports, flare towers, and structural frameworks.
Advanced Structural Analysis
Using industry-standard tools such as SACS, SESAM, and ANSYS, we assess structural capacity, load paths, and reserve strength to verify fitness-for-service.
Risk-Based Inspection Strategies
Development of targeted inspection programmes that prioritise high-risk structures and optimise maintenance resources.
Corrosion and Degradation Assessment
Evaluation of corrosion damage, thickness loss, and structural capacity reduction, with recommendations for repair or strengthening.
Digital Inspection Integration
Integration of inspection findings into digital asset platforms such as Cognite and AVEVA, linked with maintenance systems like SAP S/4HANA or IBM Maximo.
Brownfield Modifications & Asset Life Extension
We support operators managing aging offshore platforms, terminals, and FPSO infrastructure through engineering solutions focused on life extension and brownfield modification. Our services cover piping integrations, structural upgrades, and load reassessments—ensuring compatibility, constructability, and long-term asset integrity while minimizing operational disruption.
The Result
Through structured Structural Integrity Management, operators gain:
- Improved asset reliability and safety
- Reduced maintenance backlog
- Better capital planning for ageing infrastructure
- Confidence in the continued operation of critical structures