Power Generation
BUILT FOR CRITICAL ENERGY INFRASTRUCTURE
Complex Assets Demand Integrated Expertise.
Oil & gas facilities contain highly interconnected mechanical, process, electrical, instrumentation and control systems.
Successful delivery depends on more than individual equipment being installed correctly.
Systems must be:
Complete. Clean. Tested. Verified. Commissioned. Integrated. Ready for Operation.
TES provides engineering-led support across the interfaces between construction, commissioning, operations and maintenance.
Our personnel can integrate with operators, EPC contractors, principal contractors, OEMs and specialist vendors to support defined work packages or wider project delivery requirements.
WHERE WE SUPPORT
TES capabilities can support projects across:
Offshore Production Facilities
Platforms, topsides, modules and associated production and utility systems.
FPSO / FSO Facilities
Mechanical completion, commissioning, maintenance, shutdown and technical support.
Onshore Oil & Gas Facilities
Processing facilities, compressor stations, terminals, storage and associated infrastructure.
Refineries
Mechanical systems, rotating equipment, shutdowns, cleaning, testing and commissioning.
Gas Processing Facilities
Process utilities, mechanical equipment, testing, commissioning and maintenance.
LNG Facilities
Mechanical and utility systems, rotating equipment, commissioning, maintenance and shutdown support.
Petrochemical Facilities
Process plant, mechanical infrastructure, utilities, rotating assets and specialist maintenance.
Storage & Distribution Terminals
Tank farms, pumping systems, valves, pipework and associated infrastructure.
Brownfield Developments
Modification, upgrade, tie-in, testing, commissioning and reinstatement activities.
Greenfield Projects
Construction completion through pre-commissioning, commissioning, start-up and handover.
PROJECT LIFECYCLE SUPPORT
One Partner. Multiple Project Phases.
TES can support oil & gas assets throughout the project and operational lifecycle.
01 — CONSTRUCTION SUPPORT
Mechanical supervision, QA/QC, inspection, installation verification and technical support.
02 — MECHANICAL COMPLETION
Systemisation, walkdowns, inspection, punch management and readiness verification.
03 — PRE-COMMISSIONING
Cleaning, flushing, pressure testing, leak testing, equipment preparation and system verification.
04 — COMMISSIONING
Functional testing, equipment start-up, system commissioning, control verification and performance testing.
05 — START-UP & HANDOVER
System integration, troubleshooting, performance verification, defect close-out and operational handover.
06 — OPERATIONS & MAINTENANCE
Rotating equipment support, inspection, condition monitoring, valve services and technical maintenance.
07 — SHUTDOWNS & TURNAROUNDS
Planning, specialist resources, mechanical services, inspection, testing, commissioning and restart.
08 — LATE-LIFE & DECOMMISSIONING SUPPORT
Technical planning, system isolation, cleaning, inspection and specialist engineering support for asset transition.
MECHANICAL COMPLETION
Establishing Readiness Before Commissioning Begins.
Mechanical Completion forms the critical transition between construction and pre-commissioning.
TES can support structured verification that equipment and systems have been installed in accordance with approved drawings, specifications and project requirements.
Support can include:
- Systemisation and subsystem definition
- Mechanical completion walkdowns
- Equipment verification
- P&ID verification
- Installation inspection
- Tag verification
- Valve verification
- Punch-list development
- Punch categorisation
- Outstanding-work tracking
- Documentation review
- Vendor documentation verification
- Test-pack status
- Completion certificate support
- Handover preparation
Our objective is to establish clear, documented readiness before systems progress into pre-commissioning.
PRE-COMMISSIONING
Preparing Systems for Safe Introduction of Energy and Process Media.
TES can support the controlled transition from mechanically complete systems into commissioning.
Activities can include:
- System cleaning
- Water flushing
- Dynamic flushing
- Oil flushing
- Filtration
- Pressure testing
- Leak testing
- Tightness testing
- Equipment inspection
- Valve verification
- Rotating equipment preparation
- Lubrication verification
- Temporary systems
- Filling and venting
- Draining
- System cleanliness verification
- Pre-start inspections
Each activity can be coordinated around system boundaries and commissioning priorities.
COMMISSIONING & START-UP
From Static Completion to Dynamic Operation.
TES commissioning personnel can support the progressive introduction of energy and operation of equipment and systems.
Commissioning activities can include:
- Commissioning planning
- Procedure development
- System walkdowns
- Pre-start checks
- Valve line-up verification
- Motor rotation checks
- Pump commissioning
- Fan and blower commissioning
- Rotating equipment start-up
- Utility system commissioning
- Mechanical system commissioning
- Functional testing
- Control-system interface verification
- Cause-and-effect verification
- Equipment sequencing
- Performance testing
- System troubleshooting
- Punch close-out
- Operational readiness
- Handover
The objective is not simply to start equipment.
It is to demonstrate that the complete system operates safely and performs as intended.
COMPLETIONS MANAGEMENT
Visibility From Construction Through Handover.
Large oil & gas projects generate thousands of equipment tags, inspection records, test certificates, punch items and completion activities.
TES can support structured completions management to provide visibility across:
Construction → Mechanical Completion → Pre-Commissioning → Commissioning → Start-Up → Handover
Support can include:
- Systemisation
- Tag management
- Completion dossiers
- Inspection and test records
- Punch management
- Certification
- Progress tracking
- System status
- Turnover packages
- Handover documentation
- Completion reporting
Digital completions systems can be incorporated where required to provide clear project status and traceability.
PRESSURE & LEAK TESTING
Proving System Integrity Before Operation.
System integrity is fundamental before process media are introduced.
TES can support engineered testing activities including:
- Hydrostatic pressure testing
- Pneumatic testing
- Leak testing
- Tightness testing
- System integrity testing
- Valve testing
- Test boundary development
- Test-pack preparation
- Instrumentation selection
- Pressure monitoring
- Test witnessing
- Reinstatement
- Certification
Testing strategies can be developed around project specifications, system requirements and approved procedures.
FLUSHING & SYSTEM CLEANLINESS
Protecting Equipment Before Start-Up.
Contamination introduced during fabrication, construction or maintenance can cause premature equipment failure and compromise system performance.
TES can support:
- High-velocity flushing
- Dynamic water flushing
- Oil flushing
- Filtration
- Temporary filtration
- Temporary pumping systems
- Chemical cleaning coordination
- System cleanliness inspection
- Water sampling
- Oil sampling
- Laboratory analysis
- Particle monitoring
- Cleanliness verification
Particular attention can be given to sensitive rotating equipment, lubrication systems, hydraulic systems and process equipment where contamination presents significant operational risk.
ROTATING EQUIPMENT SERVICES
Reliability Starts Before the First Rotation.
TES provides specialist support for rotating equipment including:
Pumps • Motors • Compressors • Fans • Blowers • Gearboxes • Coupled Equipment
Services can include:
- Installation verification
- Mechanical inspection
- Shaft alignment
- Laser alignment
- Soft-foot checks
- Coupling inspection
- Lubrication verification
- Rotation checks
- Start-up support
- Vibration analysis
- Thermal imaging
- Performance assessment
- Troubleshooting
- Condition monitoring
- Maintenance support
Our engineering approach considers both the equipment and the system in which it operates.
VALVE SERVICES
Critical Components. Controlled Performance.
Valves represent critical points of isolation, control and protection throughout oil & gas facilities.
TES can support valve activities including:
- Valve inspection
- Removal and reinstatement
- Overhaul coordination
- Pressure testing
- Seat leakage testing
- Functional testing
- Control valve support
- Actuator inspection
- Valve tagging
- Valve management
- Safety and relief valve support
- On-site testing
- Certification and reporting
Specialist valve services can be integrated into shutdown, maintenance and commissioning work scopes.
JOINT INTEGRITY & CONTROLLED BOLTING
Flanged connections represent critical integrity points throughout process facilities.
TES can support controlled joint assembly through:
- Hydraulic bolt tensioning
- Controlled torquing
- Bolt stretching
- Flange management
- Joint identification
- Tightening procedures
- Bolt-load verification
- Completion records
- Final inspection
Joint integrity activities can be coordinated directly with pressure and leak-testing programmes.
INDUSTRIAL CLEANING
Clean Equipment. Safer Intervention. Reliable Restart.
TES can integrate specialist industrial cleaning into construction, commissioning, maintenance and shutdown programmes.
Capabilities can include:
- High-pressure water jetting
- Hydrojetting
- Tank cleaning
- Vessel cleaning
- Pipework cleaning
- Heat exchanger cleaning
- Vacuum recovery
- DISAB vacuum services
- Liquid-ring vacuum systems
- Debris removal
- CCTV inspection
- Specialist system cleaning
Cleaning scopes can be coordinated with inspection and maintenance activities to minimise programme interfaces.
INSPECTION & ASSET CONDITION
See More. Understand More. Intervene Earlier.
TES can combine traditional engineering inspection with advanced diagnostic techniques.
Capabilities include:
- Visual inspection
- Borescope inspection
- Thermal imaging
- Vibration analysis
- Ultrasonic techniques
- Remote visual inspection
- Drone inspection
- Equipment condition assessment
- Corrosion observations
- Mechanical inspection
- Performance trending
The resulting information helps clients make better decisions around maintenance, repair and equipment replacement.
TROUBLESHOOTING & ROOT CAUSE ANALYSIS
Find the Cause — Not Just the Symptom.
Complex process facilities rarely fail in isolation.
A pump problem may originate from system resistance.
High vibration may result from alignment, cavitation or process conditions.
Repeated valve failures may indicate a wider control or operating issue.
TES combines field measurements, engineering analysis, operating data and system knowledge to investigate the complete problem.
Our diagnostic capabilities include:
Vibration Analysis
Thermal Imaging
Laser Alignment
Borescope Inspection
Ultrasonic Techniques
Hydraulic Analysis
Equipment Performance Analysis
Operating Data Analysis
Where required, TES can develop findings into a formal Root Cause Analysis with recommended corrective and preventative actions.
SHUTDOWNS & TURNAROUNDS
Every Hour Matters.
TES can strengthen client and contractor teams during planned shutdowns, turnarounds and outages.
Support can include:
- Shutdown planning
- Engineering support
- Mechanical supervision
- Specialist personnel
- Valve services
- Industrial cleaning
- Rotating equipment
- Inspection
- Pressure testing
- Flushing
- Controlled bolting
- Troubleshooting
- Reinstatement
- Commissioning
- Restart support
- Completion documentation
TES can deliver defined specialist work packages or integrate personnel directly into the wider shutdown organisation.
BROWNFIELD MODIFICATIONS
Existing facilities introduce additional technical and operational challenges.
TES can support brownfield scopes including:
- Existing-system surveys
- Tie-in planning
- Shutdown coordination
- Isolation verification
- Mechanical modifications
- Equipment replacement
- Pipework modifications
- Testing
- Reinstatement
- Commissioning
- Control verification
- Performance testing
- Handover
Our commissioning-led approach keeps focus on how the modified system will ultimately be returned safely to operation.
MAINTENANCE & ASSET RELIABILITY
From Reactive Maintenance to Informed Intervention.
TES can support planned and condition-based maintenance strategies across mechanical assets.
Services can include:
- Rotating equipment maintenance
- Valve maintenance
- Equipment inspection
- Laser alignment
- Vibration analysis
- Thermal imaging
- Borescope inspection
- Lubrication assessment
- Condition monitoring
- Performance assessment
- Troubleshooting
- Root Cause Analysis
- Technical reporting
Condition information can be used to help prioritise maintenance around actual equipment condition and operational risk.
REMOTE ENGINEERING SUPPORT
Specialist Expertise Wherever the Asset Is Located.
TES Remote Support can connect site personnel directly with experienced engineers and commissioning specialists.
Our team can remotely review:
- Drawings
- P&IDs
- Photographs
- Live video
- Equipment data
- Operating parameters
- Test results
- Vibration data
- Thermal images
- Control-system trends
- Technical documentation
This enables troubleshooting and technical assessment to begin before specialist personnel are mobilised to site.
TECHNICAL & ENGINEERING SUPPORT
TES can provide engineering personnel to support project and operational requirements including:
- Commissioning management
- Commissioning engineering
- Mechanical engineering
- Shutdown management
- Mechanical supervision
- QA/QC
- Completion management
- Planning
- Technical coordination
- Vendor coordination
- Troubleshooting
- Documentation and handover
Resources can be provided individually or as part of a multidisciplinary TES delivery team.
GREENFIELD TO BROWNFIELD
New Assets.
TES can support construction completion, pre-commissioning, commissioning, start-up and handover.
Operating Assets.
We provide maintenance, inspection, troubleshooting and reliability support.
Brownfield Assets.
TES supports modifications, tie-ins, upgrades, testing and recommissioning.
Shutdown Assets.
We provide specialist resources and integrated services during critical maintenance windows.
Late-Life Assets.
TES can support inspection, technical assessment and controlled transition towards decommissioning.
SAFETY. QUALITY. TECHNICAL ASSURANCE.
Oil & gas operations demand disciplined execution.
TES projects are delivered through controlled procedures, competent personnel, defined responsibilities and documented verification.
Our approach is built around:
SAFETY
Activities planned and executed around controlled systems of work and project HSE requirements.
QUALITY
Inspection, testing and completion evidence captured throughout execution.
TRACEABILITY
Clear documentation from initial inspection through testing and final handover.
COMPETENCE
Personnel selected around the technical requirements of the activity.
ENGINEERING CONTROL
Technical activities executed against approved procedures, drawings, specifications and defined acceptance criteria.
STOP-WORK CULTURE
Where conditions differ from the approved scope or safe operating envelope, work stops and the situation is reassessed before proceeding.
THE TES DIFFERENCE
More Than Manpower.
TES is not positioned simply as another source of personnel.
Our value comes from combining experienced people with specialist engineering capability and structured technical delivery.
MULTIDISCIPLINARY
Access commissioning, mechanical, inspection, cleaning, testing, maintenance and specialist services through one organisation.
COMMISSIONING-LED
We understand what ultimately matters:
Can the system be safely started, operated and demonstrated to perform?
SYSTEM-FOCUSED
We look beyond individual components to understand how complete systems interact.
FLEXIBLE
Engage TES for one specialist requirement, a defined work package or wider project support.
LIFECYCLE CAPABILITY
Support from construction completion through commissioning, operation, shutdown and late-life activities.
FIELD + ENGINEERING
Practical site experience combined with engineering analysis and technical reporting.
ONE INTEGRATED DELIVERY MODEL
Instead of coordinating multiple independent contractors for individual specialist activities, TES can combine complementary services within one coordinated delivery model.
COMPLETIONS
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PRE-COMMISSIONING
↓
TESTING & CLEANING
↓
COMMISSIONING
↓
START-UP
↓
MAINTENANCE & RELIABILITY
↓
SHUTDOWNS
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RECOMMISSIONING
The result is fewer interfaces, clearer accountability and continuity of technical knowledge throughout the asset lifecycle.
SUPPORTING THE ENERGY INDUSTRY
Onshore. Offshore. Greenfield. Brownfield.
Whether delivering a new facility, modifying an operating asset, executing a critical shutdown or investigating equipment reliability issues, TES Group provides the specialist engineering capability required to move projects forward.
Our objective remains the same at every stage:
SAFELY COMPLETE THE WORK.
PROVE THE SYSTEM.
PROTECT THE ASSET.
RETURN IT TO OPERATION.
OIL & GAS ENGINEERING SUPPORT
Your Asset. Our Expertise.
From construction completion to first start-up — and from planned shutdowns to complex troubleshooting — TES Group provides specialist engineering services throughout the oil & gas asset lifecycle.
Commissioning. Mechanical. Testing. Maintenance. Integrity. Reliability.
Discuss Your Next Project
Speak to TES Group about an upcoming greenfield development, brownfield modification, shutdown, maintenance programme or specialist technical requirement.
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