Reservoir Characterization, Engineering & Simulation Consulting
Integrated Reservoir Analysis, Simulation, and Asset Optimization — from Characterization Through Reserves and Risk — Worldwide
Assign your company's reservoir characterization, simulation, and asset-optimization challenges to A&A, and let the seasoned consultants of the A&A Consulting Team build the integrated, multi-disciplinary technical foundation your development and investment decisions can stand on.
Avasthi & Associates, Inc. (A&A) is an independent petroleum engineering and geoscience consulting firm. A&A does not sell reservoir-simulation software, production-modeling software, or field equipment — our only business is expert technical consulting, which means our reservoir characterization, simulation, and asset-optimization recommendations are never influenced by a stake in any particular software vendor or technology.
The seasoned consultants of the A&A Consulting Team have extensive experience conducting integrated, multi-disciplinary oil & gas reservoir exploitation studies. Using state-of-the-art reservoir-simulation software, our consultants develop dynamic reservoir models that predict future reservoir performance under various operating scenarios, and conduct sensitivity studies to determine the optimum technical and economic reservoir-exploitation plan.
Most of A&A's reservoir consulting services are described below. We welcome inquiries about challenging assignments from around the world. Our reservoir consultants' extensive expertise includes, but is not limited to, the following:
Reservoir Characterization
Reservoir characterization is a vitally important consideration for every aspect of the development and production of oil & gas fields. It is used in both new and mature oil & gas fields to determine:
• Reservoir architecture
• Oil & gas in-place
A&A's experienced geoscience and reservoir consultants use state-of-the-art software to create integrated, multi-disciplinary static reservoir models — the necessary foundation for developing dynamic reservoir models that:
• Predict future reservoir performance
• Determine optimal production techniques
• Maximize production rates and reserves
• Minimize cost
Reservoir Simulation
Reservoir simulation/modeling is used to manage uncertainty in drilling and production scenarios. A&A's reservoir-simulation consultants create dynamic 3-D models representing fluid and rock properties, allowing for future reservoir-performance predictions under various operating scenarios.
Our consultants also conduct sensitivity studies to determine the most technically and economically optimum reservoir-exploitation scheme, and to provide a more accurate estimate of oil & gas reserves.
A&A's extensive reservoir-simulation expertise includes, but is not limited to:
• Conducting black-oil, PVT/phase-behavior/complex-reservoir-fluid-characterization/compositional, naturally fractured, heavy-oil, and thermal reservoir-simulation studies, using commonly used commercial reservoir simulators (such as ECLIPSE, CMG, etc.)
• Conducting gas-condensate/volatile-oil reservoir development studies (gas cycling/pressure maintenance to accelerate and maximize liquid production, and LNG/LPG production-rate and recovery forecasting)
• Conducting CO₂ flooding, hydrocarbon-gas flooding, steam flooding, or nitrogen-injection enhanced oil recovery (EOR) studies
Integrated Asset Modeling (IAM)
While conventional optimization involves isolated studies of facilities, wells, and reservoirs, Integrated Asset Modeling (IAM) brings together all of the interested systems — reservoir, well inflow, wellbore, pipeline, and compressor models — to create an integrated, optimal solution based on realistic projections consistent with facilities, well, and reservoir constraints. IAM software can model a complete production system, from reservoir to surface network.
A&A's professional IAM consultants, with extensive experience in IAM projects, are available to conduct reservoir and production-system IAM studies, network modeling, nodal analysis, gas-lift and gas-compression optimization, pipeline and flow-line modeling, and gas-well de-liquification studies — using MBAL, GAP, PROSPER, RESOLVE, IMEX, GEM, ECLIPSE, PIPESIM, PIPER, tNavigator, HYSYS, and other commonly used software.
Related A&A Service: For a full description of A&A's integrated asset modeling services, please see A&A's Integrated Asset Modeling (IAM) page.
Improved/Enhanced Oil Recovery (IOR/EOR)
The U.S. Department of Energy (DOE) has estimated that as much as two-thirds of the conventional crude oil discovered in U.S. fields remains unproduced after primary and secondary recovery — and much of that remaining oil is difficult to access, held in the pores by capillary pressure.
A&A's IOR/EOR consultants have extensive experience developing improved methods for recovering oil beyond what is achievable by primary and secondary methods — including waterflood design and troubleshooting, analytical and simulation studies for CO₂, hydrocarbon-gas, nitrogen, chemical, and thermal EOR, pilot-test and field-wide project design, and reservoir surveillance for primary, secondary, and tertiary recovery projects. Even a single percentage point of improvement in recovery can unlock substantial additional reserves from an already-known reservoir.
Related A&A Service: For a full description of A&A's EOR/IOR consulting services across all recovery methods, please see A&A's Enhanced Oil Recovery (EOR) / Improved Oil Recovery (IOR) Consulting page.
CO₂ EOR
The U.S. Department of Energy has estimated that, under current technology, roughly 24 billion barrels of U.S. oil are economically recoverable through CO₂ EOR — and that "next-generation" CO₂ EOR technology could increase that economically recoverable resource to as much as 60 billion barrels. The central technical challenge is controlling the behavior of the injected gas.
A&A's consultants conduct simulation studies to analyze the mobility and sweep of the injected gas, and to predict future reservoir production performance under different operating scenarios, using state-of-the-art PVT/compositional reservoir simulation. Our CO₂ EOR reservoir-simulation, geomechanics, and production consultants have more than 30 years of experience working on CO₂ EOR projects, and are available to conduct all aspects of CO₂ EOR studies, including pilot-test and field-wide project design, evaluation and optimization, well-profile modification studies, geomechanics studies, and reservoir surveillance and management for CO₂ flood EOR projects.
Related A&A Service: For A&A's full CO₂ flooding EOR project experience — by region, and by project type — please see A&A's CO₂ EOR Consulting page.
CO₂ Geosequestration
Choosing the right storage site is critical to managing uncertainty and minimizing risk in CO₂ storage projects. A&A's CO₂ geosequestration consultants analyze client data and build state-of-the-art models to examine geochemical and geomechanical processes, and to simulate and test a range of scenarios covering:
• Site Selection: Analytical and simulation studies for CO₂ sequestration in depleted oil & gas fields, saline reservoirs, and unmineable coal beds, to determine total storage capacity, injection rates, and secure and permanent containment
• Storage Performance: Screening and comparison of design, evaluation, and optimization options to identify the optimum CO₂ sequestration project
• Risk Mitigation: Capturing CO₂ and injecting it into deep underground geologic formations securely, efficiently, and permanently
Reserves Determination
The most important factor in reserves determination is the experience and knowledge of the evaluator. A&A's reserves consultants have extensive experience in reserves determination, creating and comparing both deterministic and probabilistic methods to ensure the highest-quality, most accurate estimate, by conducting:
• Reserves determination studies using classical methods as well as 3-D seismic interpretation, geological and geophysical modeling, reservoir simulation, and deterministic and probabilistic methods
• Oil & gas reserves certification studies
Economic and Risk Analysis
Development and operation of oil and gas production facilities requires an enormous investment of time, money, and technology. A thorough understanding of economic issues and associated risks — technological, economic, and political — is therefore critical.
Companies that employ sound risk-assessment and risk-management practices have a better track record of achieving their project goals on time and within budget. A&A's experienced economic and risk-analysis consultants have extensive industry experience and are available to conduct:
• Economic evaluation and risk analysis
• Divestment/acquisition support (project evaluation, bid/sale offer document preparation, data-room preparation or data review, sales-contract preparation and negotiation, and due-diligence audit of production records, field operations, and facilities)
• Prospect evaluation, using state-of-the-art software
To put the seasoned consultants of the A&A Consulting Team to work on your company's challenging reservoir characterization, simulation, and asset-optimization projects, around the world, please contact us (Contact@AvasthiConsulting.com) or click here.
