Proof that difficult compression decisions can become practical outcomes.
See how ETA has helped operators select the right compression concept, recover production, improve reliability, extend existing assets and control technical risk from FEED through execution.
Confidence in the decision before committing more capital.
From field-development concepts to compressor interventions and Owner Engineer support, the work stays focused on the production, reliability and project decision at stake.
Start with the decision you need to make.
Case studies are organised around the problems operators and project teams are trying to solve—not simply by industry sector or project stage.
What compression do we need, where and when?
Evidence from field-development studies, integrated asset modelling, concept selection and phased compression planning.
See strategy cases →Can we unlock capacity before adding more equipment?
Examples of debottlenecking, system redesign, changed operating duties and capacity-enhancement studies.
See optimisation cases →Why is the compressor underperforming—and what is the right fix?
Performance assessment, fitness-for-purpose, root-cause work, rewheels and independent technical assurance.
See reliability cases →How do we protect the technical outcome through procurement and EPC?
Owner Engineer, technical bid evaluation, vendor design review, FAT, commissioning and EPC support.
See assurance cases →A track record that connects engineering work to the decision it protected.
One example of the full Owner Engineer journey—from a production problem to controlled procurement and EPC execution.
Third Wellhead Compression Train — EPC Project Management Consultancy
Declining Cashiriari reservoir pressures required a third compression train in a remote, biodiversity-sensitive environment with significant multiphase-flow challenges.
How the operator moved from declining pressure to a controlled third-train project.
ETA acted as Owner Engineer through EPC execution, supporting the operator in a technically demanding remote environment while maintaining focus on production requirements, package quality and delivery risk.
Experience across the compression decisions that affect production and project value.
Use the pathways below to move directly to the type of evidence most relevant to your current challenge.
Andrew (AAD) Rewheel Study
Existing reliability issues and a planned satellite-field tie-in required a fundamental reassessment of the main compression train.
Andrew (AAD) Rewheel Technical Assurance
The operator needed independent assurance through OEM design, manufacture and Factory Acceptance Testing to protect its requirements.
Magnus System Improvement Study
Persistent reliability issues and concerns about future operational suitability required an independent assessment and actionable improvement roadmap.
Wellhead Compression Project — PMC and Technical Assurance
Compression project delivery required procurement, vendor management and commissioning support at the Cashiriari field.
Sales Gas Turbocompressor Special Studies
Lower-than-expected wellhead pressures required assessment of rewheeled compressor capability and independent validation of commercial shaft-power calculations.
Pagoreni Rewheel Technical Assurance
Declining reservoir pressures required two existing compression trains to be rewheeled for changed operating conditions.
Rospan IAM & Compression Conceptual Design
Inaccurate integrated asset models and week-long simulation runs were blocking field-development decisions.
Camisea Wellhead Compression — Conceptual Study
A remote, biodiversity-sensitive location and multiphase-flow complexity made distributed wellhead compression difficult.
Downhole Compression Technology Review
An operator in areas of significant biodiversity needed an independent assessment of downhole compression as an alternative to surface wellhead compression.
Gas Storage Injection Enhancement — Phase 2
The operator wanted to maximise injection capacity to improve facility economics.
Hatfield West Gas Storage Development
The project assessed options to increase injection and storage capacity and improve commercial flexibility.
Conceptual Compression Study for Declining Field Development
Declining reservoir pressures required structured assessment of technology, sizing and phased implementation.
Not just case studies. A complete compression engineering capability.
The portfolio demonstrates ETA's ability to work from the first strategic question through concept selection, optimisation, project assurance and execution.
Compression Strategy, Concept Selection & Integrated Asset Modelling
Determine the right compression strategy before committing to equipment or major capital.
- Gas compression conceptual studies
- Integrated asset modelling
- Production forecast sensitivities
- Compressor sizing
- Location and driver studies
- Compression phasing
Production Debottlenecking & Compression System Redesign
Find the constraint and determine whether targeted modification can unlock capacity before replacement.
- Network debottlenecking
- Pipeline hydraulic analysis
- Pressure-drop analysis
- Operating-envelope development
- Rewheel evaluation
- System reconfiguration
Compressor Performance, Reliability, Integrity & Life Extension
Understand why an existing system is underperforming and define the intervention that protects uptime and production.
- Performance benchmarking
- Root-cause analysis
- Reliability investigations
- Fitness-for-service
- Residual-life assessment
- Revamp versus replacement
Owner's Engineering, FEED/EPC Technical Assurance & Procurement
Protect operator requirements through specification, vendor selection, detailed design, testing and commissioning.
- Owner / Client Engineer
- Pre-FEED and FEED
- Package specifications
- Technical bid evaluation
- Vendor design review
- FAT and commissioning support
Five specialist processes. Each matched to a different decision.
ETA's methodology covers the full project lifecycle, so the relevant case study can lead naturally into a defined engineering route.
Extraclarity™
Clarify objectives, constraints, scope and success criteria before the engineering work begins.
Explore →CONCEPTCOMPRESSOR™
Systematically identify, compare and prove the optimum gas compression concept.
Explore →modgas™
Identify bottlenecks and define cost-effective compression-system modifications.
Explore →verify™
Provide independent technical assurance through FEED, procurement, EPC and testing.
Explore →CompressorDoc™
Move from symptoms to root causes and an implementable uptime roadmap.
Explore →Not every relevant project can be published.
Some case studies are marked confidential at the client's request. To discuss a specific sector, geography, or challenge type not represented above, please get in touch directly.
Have a compression decision that looks similar?
Tell us what is changing, what you need to decide and what is at risk. We can identify the most relevant experience and the right engineering route.