Enhanced Oil Recovery (EOR) has long been recognized as a powerful lever for unlocking additional reserves from mature oil fields. As conventional development opportunities decline and capital discipline tightens, operators increasingly look to EOR to extend field life, improve recovery factors, and maximize asset value.
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However, EOR projects carry significant technical, operational, and economic risk. Not every reservoir is a suitable candidate, and not every EOR method delivers the expected uplift. Selecting the right EOR projects therefore depends on robust screening—grounded in data, analog performance, and realistic expectations.
bMark, developed by Belltree, enables structured EOR screening with bMark by benchmarking candidate reservoirs against global analogs and historical EOR outcomes. This approach helps operators identify high-potential recovery projects while avoiding costly missteps.
Why EOR Screening Is Critical in Mature Asset Strategies
EOR is not a one-size-fits-all solution. Each method—waterflood optimization, gas injection, polymer flooding, chemical EOR, thermal recovery—comes with specific geological and operational requirements.
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The Stakes of EOR Project Selection
Poorly screened EOR projects can lead to:
- Limited incremental recovery
- Escalating operating costs
- Disappointing economic returns
- Loss of confidence in EOR programs
Effective EOR screening focuses effort on projects with a realistic chance of success.
Increasing Role of EOR in Energy Transition Context
As operators seek to maximize recovery from existing fields rather than develop new ones, EOR plays a growing role in:
- Extending asset life
- Improving resource efficiency
- Supporting capital discipline
This makes structured screening more important than ever.
Limitations of Traditional EOR Screening Approaches
Historically, EOR screening has often relied on simplified criteria and expert judgment.
Rule-of-Thumb and Checklist Methods
Traditional EOR screening often uses:
- Reservoir property cut-offs
- Generic screening tables
- Experience-based judgment
While useful as a first pass, these methods lack context and realism.
Limited Use of Analog Performance Data
Many screening workflows fail to fully leverage:
- Global EOR project performance
- Recovery uplift distributions
- Real-world variability
As a result, expectations may be misaligned with actual outcomes.
What Effective EOR Screening Really Requires
Successful EOR screening must go beyond basic reservoir properties.
Contextualizing Reservoir Characteristics
Effective screening considers:
- Reservoir properties (porosity, permeability, viscosity)
- Development maturity
- Existing recovery mechanisms
- Operational constraints
Learning from Comparable EOR Projects
Understanding how similar reservoirs have performed under EOR is critical to realistic screening.
How bMark Enables Structured EOR Screening
bMark transforms EOR screening from a subjective exercise into a benchmark-based workflow.
Benchmarking Against EOR Analogs
EOR screening with bMark leverages:
- Curated datasets of EOR projects
- Performance metrics across methods
- Statistical distributions of recovery uplift
This enables teams to see where a candidate reservoir fits relative to proven outcomes.
Comparing Multiple EOR Options
bMark supports comparison across:
- Waterflood enhancement
- Gas injection (miscible and immiscible)
- Polymer and chemical flooding
- Thermal methods (where applicable)
Avoiding Overcommitment to a Single Concept
Benchmarking encourages exploration of multiple EOR pathways rather than premature commitment.
Identifying High-Potential Recovery Projects
The goal of EOR screening with bMark is to identify projects with the best balance of upside and risk.
Highlighting Realistic Recovery Uplift Ranges
Instead of relying on optimistic single values, bMark shows:
- Typical uplift ranges
- Probability of achieving target recovery
- Variability across analogs
This supports more realistic project selection.
Prioritizing Projects Within a Portfolio
EOR screening helps rank opportunities across:
- Fields
- Reservoirs
- EOR methods
This ensures capital is allocated to the most promising recovery projects.
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Supporting Phased EOR Development Strategies
EOR projects often evolve over time.
From Screening to Pilots
bMark supports:
- Initial screening
- Pilot design justification
- Scaling decisions
Benchmark-based insight helps define realistic success criteria for pilots.
Learning and Adapting Over Time
As pilots and early EOR phases deliver data, screening assumptions can be updated and refined.
Reducing Bias in EOR Decision-Making
Bias is a significant risk in EOR planning.
Common Sources of EOR Bias
H3: Common Sources of EOR Bias
These include:
- Overreliance on “success stories”
- Ignoring less successful EOR attempts
- Pressure to justify redevelopment
How bMark Introduces Objectivity
EOR screening with bMark mitigates bias by:
- Presenting full outcome distributions
- Highlighting variability and failure rates
- Encouraging balanced interpretation
Strengthening Governance and Investment Decisions
EOR projects often require significant capital and long payback periods.
Supporting Investment Gate Reviews
Benchmark-based screening provides:
- Transparent justification for EOR selection
- Context for recovery assumptions
- Clear communication of risk
Improving Confidence in Sanction Decisions
Decision-makers gain greater confidence when EOR proposals are grounded in analog performance.
EOR Screening Across the Asset Lifecycle
EOR screening is relevant at multiple stages.
Mature Field Redevelopment
For mature fields, screening helps:
- Identify remaining recovery potential
- Select appropriate EOR methods
- Avoid uneconomic late-life projects
Brownfield and Late-Life Assets
Benchmarking supports decisions on whether to:
- Invest further
- Modify recovery strategy
- Plan orderly abandonment
Business Impact of EOR Screening with bMark
The benefits of structured EOR screening extend beyond technical accuracy.
Improved Capital Efficiency
By focusing on high-potential projects, operators achieve:
- Better use of redevelopment budgets
- Reduced sunk costs in poor candidates
- Higher value per EOR dollar invested
More Predictable Recovery Outcomes
Benchmark-anchored expectations reduce the gap between forecast and actual performance.
Industry Perspective on EOR Screening and Benchmarking
EOR screening and benchmarking are widely recognized as best practice.
External references:
- Society of Petroleum Engineers (SPE) – Enhanced Oil Recovery resources
- OnePetro – Technical papers on EOR screening and performance
These references highlight the importance of data-driven EOR selection.
Why EOR Screening with bMark Is Now Essential
As operators increasingly rely on EOR to sustain production and reserves, informal screening methods are no longer sufficient.
EOR screening with bMark enables organizations to:
- Identify high-potential recovery projects
- Manage technical and economic risk
- Allocate EOR capital with confidence
Conclusion
EOR represents a powerful opportunity—but only when applied selectively and realistically. By embedding benchmarking and analog performance into the screening process, bMark enables smarter identification of high-potential recovery projects.
For operators seeking to maximize recovery while maintaining capital discipline, EOR screening with bMark is no longer optional—it is essential.
Apply Benchmark-Based EOR Screening with Confidence
Implementing EOR screening effectively requires both the right tools and practical expertise. Kejora Gasbumi Mandiri works closely with reservoir and asset teams to apply bMark in a way that directly supports EOR decision-making.
From early screening to investment review, Kejora helps organizations translate benchmarking insight into confident, high-potential EOR projects.

