Reservoir Engineering





We have reservoir engineering specialization to provide advisory to exploration/NBD, development and asset teams in helping improve the performance of the complex oil and gas reservoirs in conventional and unconventional fields


  1. Fundamental reservoir data analysis

  2. Reservoir fluid characterization and modeling of black-oils and compositional fluids

  3. Primary, secondary and tertiary recovery assessment methods (IOR/EOR)

  4. Reservoir characterization, simulation modeling and production forecasting

  5. Numerical reservoir simulation; Black-oil and compositional modeling

  6. Reservoir development and depletion strategies 

  7. Integrated production system modeling (IPSM) 

  8. Risk and uncertainty management with multiple scenario modeling and range of subsurface realizations

  9. Pressure Transient Test Analysis (PTA)

  10. Hydrocarbon Resource Management (HRM) and reserves estimation

  11. Reservoir surveillance and Well, Reservoir & Field Management (WRFM)

  12. Production logging, testing and productivity enhancement

Reservoir Characterization & Simulation | Modeling
  • Data collection , validation and preparation

  • Upscale Static models

  • Develop dynamic models

  • Initialization & volume estimates

  • History matching

  • Production forecasting

Hydrocarbon Resource Management & Reserve Estimation

HRM is at the heart of asset valuation and business planning. We can provide guidance and audit in:

  • Prospective Resource (PR) assessment; Play, Leads & Prospects

  • Contingent Resources (CR) assessment; 

  • Reserves Assessment; Proved Developed (PD) & Proved Undeveloped (PUD), Proved Developed Producing (PDP), and Proved Developed Non Producing (PDNP) reserves

  • Range of uncertainty; 1P, 2P, 3P (or 1C, 2C, 3C)

Production Forecasting

We can help develop production forecast for various stages of business planning:

  • Risked & Un-risked exploration forecast 

  • Contingent Resources forecast (capital investment for growth) 

  • No-Further Activity (NFA) forecast (PDP reserves & open only)

  • Full lifecycle portfolio forecast for business planning

  • Others

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Integrated Production  System Modeling

IPSM models permits the engineer to determine the optimum setting to maximum production or revenue, taking account of all constraints that are set in the system. 

  • PROSPER: well modeling

  • MBAL: Material balance and reservoir modeling

  • GAP; surface network modeling with real field constraints

  • For Gas, oil and NGL reservoirs

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Uncertainty Management

Uncertainty is inherent subsurface but can be managed and reduced with effective appraisal program, front-end loading (FEL). Without it projects are delayed and value degrade or destroyed.   we can help with developing

  • Develop Effective Appraisal programs with optimum FEL

  • Identify needs for exploration & development appraisal

  • Identify key uncertain variable impacting recovery & NPV

  • Develop range of subsurface scenarios and development options to ensure that selected concept is robust under uncertainty

Enhanced Oil Recovery (EOR)

EOR can recover 30% - 60% more oil that is in-place. CO2-EOR in US injects about 2.0 billion ft3 and produce 280,000 bpd.  This has additional benefit of storing CO2 in the ground. We can help with various EOR

  • Miscible & miscible injection

  • Thermal recovery 

  • Chemical recovery

  • CO2 EOR

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Carbon Capture Storage

CO2 capture and its storage in depleted oil & gas reservoirs or storage in deep saline aquifer is a leading way to eliminate Co2 emissions. We can help with  (SEE: CARBON STORAGE)

  • Site Characterization

  • Class-II & Class-VI well design & permitting

  • Developing plume modeling 

  • Various trapping methods; structural, hysteresis or residual trapping, solubility trapping mineral trapping

  • Lifecycle injection modeling 

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Unconventional Reservoir Engineering

We offer integrated approach of de-risking unconventional play resulting in better growth and profits:

  • Data collection, review & QA/QC

  • Develop big rules for the play & identify 'Killer risks'

  • Develop Critical Risk Segment (CRS) maps & play segment maps

  • Map EUR and IP; & identify 'sweet-spot'

  • Help optimize well & completions for maximum IP & EUR

Pressure Transient Analysis

PTA, is, in most cases, about analyzing high frequency, high resolution shut-in data.

  • PVT, data QA/QC

  • Diagnostic analysis; Log-log; semi-log; specialized plot

  • Analytical models; wellbore, reservoir, inner / outer boundary

  • 2D | 3D models 

  • Standard & Other tests;