CompressorDoc™ · Diagnose
Find the root causebefore the next repair becomesanother temporary fix.
CompressorDoc™ is ETA's structured diagnostic and improvement methodology for existing compression systems with poor performance, chronic reliability problems, recurring shutdowns or rising maintenance burden.
Use it when...
A compression solution is moving from engineering into delivery.
Specification
Are requirements captured correctly?
Vendor
Is the proposed package technically appropriate?
Delivery
Does the final package still meet original intent?
The Decision It Protects
More data does not
automatically mean
more understanding.
Compressor failures may arise from machine design, process-system conditions, controls, auxiliaries, maintenance practices or several causes acting together.
CompressorDoc™ deliberately combines performance, maintenance and design evidence before root cause is declared.
The tool is designed to prevent:
- Repeated repairs to the same symptom
- Machine-only troubleshooting
- Assuming maintenance is always the cause
- Ignoring design susceptibility
- Modification before performance is benchmarked
- Replacement without understanding the underlying issue
The Five-Step Process
CompressorDoc™
01
Performance Benchmarking
Establish actual versus expected compression performance.
02
Maintenance Review
Identify recurring patterns in failures and interventions.
03
Design Analysis
Examine aerodynamic, thermodynamic and rotodynamic characteristics.
04
Root-Cause Analysis
Integrate evidence and isolate the underlying technical causes.
05
Uptime Roadmap
Prioritise corrective action and implementation.
What CompressorDoc™ Examines
The complete compression context
MAP
Compressor Map Behaviour
Operating points, margins, recycle and changed-duty behaviour.
TH
Thermodynamic Performance
Head, flow, power, efficiency and temperature behaviour.
HIST
Failure History
Recurring events, maintenance backlog and intervention patterns.
SYS
Process-System Interaction
Upstream, downstream and ancillary conditions affecting the train.
DSG
Design Susceptibility
Features that may make the machine prone to certain problems.
ACT
Corrective Options
Operational change, repair, rewheel, revamp or replacement.
Typical Outputs
An evidence-based route to
sustained improvement
Performance benchmark
Current versus expected machine behaviour.
Failure pattern analysis
Recurring issues identified from history.
Design findings
Susceptibilities relevant to current problems.
Root-cause conclusion
Evidence-based explanation of why problems occur.
Corrective options
Technically appropriate interventions.
Uptime roadmap
Prioritised implementation plan.
Relevant Proof
Reliability improvement on an
operating North Sea asset
BP · Andrew Platform
Compression Train Fitness-for-Purpose & Reliability
Existing reliability issues combined with changing future duty.
The equipment needed more than another isolated intervention.
The compression train required broader reassessment in the context of existing reliability issues and changed project requirements.
Outcome
Sustained compression reliability restored ahead of schedule.
Are you fixing failures—or
solving the reason they happen?
CompressorDoc™ is designed for teams that need to move from recurring symptoms to sustained improvement.