EOR/IOR Field Pilot-Testing Consulting
Designing, Conducting, Analyzing, Interpreting, and Scaling Up Enhanced and Improved Oil Recovery Pilot Tests — Worldwide
Whether EOR/IOR field pilot testing is new to your company, or your company needs help with an existing EOR/IOR pilot test already underway, assign the challenge to A&A, and let the high-level, seasoned consultants of the A&A Consulting Team bring more than five decades of pilot-test design, execution, analysis, and scale-up experience to your project, around the world.
Avasthi & Associates, Inc. (A&A) is an independent petroleum engineering consulting firm. A&A does not sell EOR chemicals, CO₂, polymers, injection equipment, or reservoir-simulation software — our only business is expert technical consulting, which means our pilot-test design, interpretation, and scale-up recommendations are never influenced by a stake in any particular vendor or technology.
Since the early 1970s, the high-level, seasoned consultants of the A&A Consulting Team have been designing, evaluating, and optimizing EOR/IOR projects — to maximize oil production rate and recovery — and have been directly involved in designing, conducting, analyzing, and interpreting numerous EOR/IOR field pilot tests, as well as in the operational aspects of EOR/IOR field projects, around the world. If EOR/IOR field pilot testing is new to your company, or your company needs help with an existing pilot test, we will be delighted to help with ALL aspects of your company's EOR/IOR field pilot-testing projects.
Why a Pilot Test?
A field-wide EOR/IOR project represents a major capital commitment — new wells, injection facilities, chemical or gas supply, and years of operating cost — before an operator knows, with confidence, how the target reservoir will actually respond. A well-designed pilot test answers that question on a smaller, lower-risk scale first: confirming injectivity, conformance, and incremental-oil response under real reservoir conditions, and de-risking the field-wide investment decision before it is made.
1. Designing EOR/IOR Field Pilot Tests
• Geological, petrophysical, and seismic interpretation, to characterize the pilot area's reservoir architecture and heterogeneity
• Original oil-in-place (OOIP) and original gas-in-place (OGIP) estimation, for the pilot pattern and surrounding area
• Reservoir depletion and development-strategy review, to select a representative, well-instrumented pilot location
• Pilot pattern selection and well-spacing design — inverted five-spot, line-drive, or single-well huff-n-puff, as appropriate to the recovery method
• Injection planning and management — injectant selection, rate and pressure design, and conformance-control strategy
• Surveillance and monitoring-plan design — pressure, tracer, production allocation, and, where applicable, 4D seismic or time-lapse logging
• Success-criteria definition, and troubleshooting plans for anticipated operational challenges
2. Conducting EOR/IOR Field Pilot Tests
A&A's EOR/IOR consultants have hands-on field-pilot experience across the full range of recovery methods, including, but not limited to:
• Miscible CO₂ flooding
• Immiscible CO₂ flooding
• CO₂ huff-n-puff
• Nitrogen and hydrocarbon-gas flooding
• Chemical (polymer, surfactant, ASP) flooding
• Steamflooding and cyclic steam stimulation (CSS)
• Cold heavy oil production with sand (CHOPS)
• Waterflooding and improved waterflood management
3. Modeling, Analyzing, and Interpreting Pilot-Test Results
• Reservoir simulation modeling of the pilot, using state-of-the-art simulation technology, to reproduce and explain observed performance
• History matching of pilot-test production, injection, and pressure data
• Tracer-test interpretation, conformance diagnostics, and identification of thief zones or channeling
• Incremental-oil, injectivity, and recovery-factor analysis, relative to the pre-pilot baseline
• Root-cause analysis of underperforming or overperforming pilot elements
4. Optimizing, Scaling Up, and Designing Field-wide Projects
• Optimizing the pilot design itself, using lessons learned during the test — cycle timing, injection rate, and pattern configuration
• Capturing operational lessons learned, for field-wide project design
• Scaling up pilot-test results to a field-wide project basis — pattern replication, heterogeneity effects, and economic scale-up
• Designing the field-wide EOR/IOR project, and the supporting field development plan (FDP), based on validated pilot-test results
Software and Technical Tools
The high-level, seasoned consultants of the A&A Consulting Team are expert users of industry-standard software and technical tools for state-of-the-art pilot-test design, modeling, and interpretation, including:
• CMG (IMEX/GEM/STARS): for black-oil, compositional, and thermal reservoir simulation of pilot patterns
• Eclipse / INTERSECT, tNavigator: for dynamic reservoir simulation and history matching
• CMOST: for assisted history matching, uncertainty quantification, and pilot-design sensitivity analysis
• Python, MATLAB: for tracer-test interpretation, surveillance-data analysis, and automation workflows
Training and Knowledge Transfer
In addition to providing consulting services to our clients for ALL aspects of EOR/IOR field pilot testing, A&A's EOR/IOR consultants conduct high-level, customized, hands-on training workshops on EOR/IOR field pilot testing, and other related topics, for the benefit of our clients, around the world, whenever mutually convenient:
• EOR Technology Screening and Field Trials (Pilot Tests)
• Practical Reservoir Surveillance and Management
The outlines of these, and other, customizable training workshops are available on request.
What A&A Delivers
An EOR/IOR field pilot-testing engagement with the A&A Consulting Team is built around the practical decisions your company needs to make, including, but not limited to:
• A fully designed, ready-to-execute pilot-test plan, with defined success criteria and a surveillance program
• Real-time or post-test analysis and interpretation of pilot performance
• A validated, history-matched simulation model of the pilot, ready for scale-up
• A field-wide EOR/IOR project design and development plan, built on validated pilot-test lessons learned
• High-quality final reports and executive presentations
Related A&A Service: For A&A's broader Enhanced Oil Recovery (EOR) / Improved Oil Recovery (IOR) consulting services, across all recovery methods, please see A&A's Enhanced Oil Recovery (EOR) / Improved Oil Recovery (IOR) Consulting page.
Related A&A Services: For A&A's full technical services on each specific recovery method, please see A&A's dedicated CO₂ Flooding EOR, CO₂ Huff-and-Puff Consulting, Chemical/Polymer EOR Consulting, Steam EOR Consulting, Nitrogen (N₂) EOR/IOR Consulting, and Hydrocarbon Gas EOR Consulting pages.
Related A&A Service: For A&A's full history-matching services — applied to pilot-test production, injection, and pressure data — please see A&A's History-Matching Consulting page.
Related A&A Service: For A&A's full Decision-Grade Reservoir Simulation-Driven Field Development Planning services — for scaling a successful pilot up to a field-wide project — please see A&A's Decision-Grade Reservoir Simulation-Driven Field Development Planning (FDP) Studies page.
Frequently Asked Questions
What is an EOR/IOR pilot test, and why not go straight to a field-wide project?
A pilot test applies the proposed EOR/IOR method to a small, representative part of the reservoir first, to confirm injectivity, conformance, and incremental-oil response before committing the capital required for a field-wide project. It converts untested assumptions into field-validated performance data, at a fraction of the cost and risk of a full-field commitment.
How long does a typical EOR/IOR pilot test take?
It depends heavily on the recovery method and the reservoir's response time — from weeks-to-months per cycle for a huff-n-puff pilot, to several years for a full miscible-flood, chemical-flood, or thermal (CSS/steamflood) pilot. A&A can advise on realistic timing for your specific reservoir and method.
What makes a pilot-test result reliable enough to scale up to a field-wide project?
A defensible scale-up rests on a pilot that was well-instrumented from the start, a simulation model that has been properly history-matched against the pilot's actual performance, and a clear understanding of which pilot results are representative of the wider field versus specific to the pilot location — all core parts of A&A's pilot-testing methodology.
Can A&A help if our pilot test is already underway, or already completed and needs interpretation?
Yes. A&A regularly steps into EOR/IOR field pilot-testing projects already in progress — to help analyze and interpret pilot data, troubleshoot underperformance, or determine whether a completed pilot supports scaling up to a field-wide project — not only at the design stage.
Does A&A sell EOR chemicals, CO₂, or injection equipment?
No. A&A is an independent consulting firm and does not sell chemicals, gases, equipment, or software, so our pilot-test recommendations are never influenced by a stake in any particular vendor or technology.
We can put teams of our high-level, seasoned EOR/IOR consultants — with extensive experience in designing, conducting, analyzing, and interpreting EOR/IOR field pilot tests — to work on your company's EOR/IOR field pilot-testing projects, around the world, whenever required.
To find out how we can help on your company's EOR/IOR field pilot-testing projects, around the world, please contact us.
