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Reservoir & Production Engineering

Consulting Services

Featured Services

Our engineers are specialists with over 20 years of experience each and have worked in the most prolific basins and fields around the word during the exploration, appraisal, development and rejuvenation of conventional and unconventional resources of heavy to light oil and gas, onshore and offshore.  Our engineers are highly experienced and proficient with most of the commercial software for classical, analytical and advanced reservoir engineering, production analysis, reserves assessments and economic evaluations.

Efficient reservoir development requires a good understanding of reservoir and production systems, especially in a low oil price market scenario where established fields are the most likely places to find additional oil and gas production. Improving the performance of existing wells that are already producing or suspended is a cost-effective way to offset natural decline, extend field life and improve hydrocarbon recovery. 

Dynamic Reservoir Simulation

We have many years of consulting experience in Numerical Simulation for different E&P clients and projects, including:

  • Conventional Oil

  • Heavy Oil

  • Compositional Processes

  • Fractured Reservoirs

  • Water Flooding

  • Unconventional Oil and Gas Reservoirs

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Reservoir Engineering and Characterization

  • Volumetrics & Monte Carlo Simulation

  • PVT Characterization and Correlations

  • Equations of State & Relative Permeability Curves

  • Formation Testing – Pressure vs Depth – Gradients & Contacts

  • Material Balance Analysis - MBA

  • Pressure Transient Analysis & Design - PTA

  • Rate Transient Analysis - RTA

Project Evaluations

  • Reservoir Characterization

  • Production Forecasting

  • Recovery Factor Analysis

  • Reserves Assessments

  • Costs Estimates

  • Risk Analysis

  • Economic Evaluations

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Production Engineering and Optimization

  • Decline Curve Analysis & Monte Carlo Simulation

  • Field Development Planning - FDP

  • Analog and Benchmark Analysis

  • Reservoir Surveillance Permanent Downhole Gauges - PDG

  • Production Analysis and Optimization

  • Nodal Analysis and Wellbore Modelling

Enhanced / Improved Oil Recovery – EOR / IOR

  • Screening and Visualization

  • Notional Predictive Models

  • Waterflood Performance and Modelling

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We have a proven track record for providing high quality projects by integrating our proprietary technology and offering solutions to fulfill our clients’ needs.

Reservoir Engineering and Characterization

Volumetrics & Monte Carlo Simulation

  • Single values for “deterministic” calculations vs probability distributions for “stochastic” results, more meaningful results for decision analysis. 

  • Several prospects with multiple reservoirs containing different type of fluids with associated fluids, each one needs to be calculated separately.

PVT Characterization and Correlations

  • PVT properties are required in practically every aspect of reservoir and production engineering.

  • Quick and accurate PVT calculations based on multiple well know correlations for a wide range of properties. 

Equations of State & Relative Permeability Curves

  • In addition to correlations used to calculate PVT properties, Equations of State (SRK or PR) are also available to accurately model the volumetric and phase behaviour of hydrocarbon and to predict the performance of surface facilities. 

  • Tools with models and routines to quickly and precisely calculate oil, gas and water relative permeability tables.

Formation Testing – Pressure vs Depth – Gradients & Contacts

  • Data from MDT, RFT or XPT to characterize, identify or validate pressure regimes, fluid properties and fluid contacts for proper exploration, appraisal and development. 

  • Layered reservoirs separated by impermeable shales, containing multiple contacts and controlled by a common or different aquifers requires efficient integration of large data sets from engineering and G&G.

Material Balance Analysis - MBA

  • Shilthuis material balance equation and Havlena-Odeh interpretative technique quickly and easily determine reservoir drive mechanisms, establish volumes in-place and predict reservoir performance under primary recovery conditions.  When multiple reservoirs exist, each reservoir needs to be analyzed independently.

  • Using relative permeability curves perform early production forecasting prior to building complex reservoir simulation models. Perform production allocation when wells/reservoirs produce from multiple layers/zones at the same time and estimate movement and location of fluid contacts. 

Pressure Transient Analysis & Design - PTA

  • Establish reservoir pressure, permeability, skin, boundaries, and heterogeneities to calibrate simulation models, evaluate completion efficiencies and recommend potential stimulations or optimization practices. 

  • Design and analysis of buildups, drawdowns, falloffs, interference, DST and mini-frac tests.  Fast diagnostic analysis, modelling and history match of measured data to validate estimated reservoir properties and sensitivity analysis. 

Rate Transient Analysis - RTA

  • Conventional or Unconventional reservoirs, with RTA there is NO need to shut-in production to establish reservoir properties and volumes in-place. 

  • RTA allows validation of driving mechanisms and contains multiple techniques (FMB & TypeCurves) to estimate volumes in-place and expected ultimate recoveries.  RTA can be used to calibrate simulation models, support reserves assessments and to identify production issues and optimizations. 

  • RTA allows for the construction of simple and quick analytical and numerical reservoir models to validate properties and volumes and also allows for early production forecasting prior to building complex simulation models.

 

Project Evaluations

Reservoir Characterization

  • High level or detailed reservoir characterization though any of the processes described in our reservoir and production engineering services

Production Forecasting

  • Prediction of oil, gas and water production though any of the processes described in our reservoir and production engineering services. 

Recovery Factor Analysis

  • Deterministic and probabilistic calculations of oil recovery factors for solution gas drive and water drive reservoirs based on the API equations.

Reserves Assessments

  • Revision, validation or determination of expected ultimate recoveries or remaining recoverable volumes to economic limits. 

Cost Estimates

  • Revision and assessment of lease operating statements, AFE’s and budgets or estimation of capital, operating and transportation costs. 

Risk Analysis

  • Assessment of chances of technical success  (COS) and chances of development (COD), decision trees and calculation of Expected Monetary Value for decision analysis. 

Economic Evaluations

  • Quick and simple economic/fiscal models for scoping economics or detailed and rigorous models for evaluation of economic indicators and sensitivities. 

 

Production Engineering and Optimization

Decline Curve Analysis & Monte Carlo Simulation

  • Quickly and accurately perform conventional “deterministic” oil, gas, water and ratios (GOR, WCUT, WOR, CGR & WGR) decline curve analysis on hundreds or thousand of wells.

  • Generate probabilistic EUR values based on probabilistic simulations of decline curve parameters.  Model evaluates all the parameters in the decline curve equations and generates production forecasts for specific realizations.

Field Development Planning - FDP

  • Visualization and generation of worldwide oil and gas on-shore and off-shore field development plans:  timelines, wells, equipment, facilities and infrastructure, operating and capital costs and production forecasts.

  • Quickly prepare and analyze primary and associated production profiles.  Quick-look sizing for facilities throughput capacity for all production and injection streams.  Use total field production profile or different well-types.

Analog and Benchmark Analysis

  • Analysis of similar reservoir and fluid properties, completions and stimulation strategies, reserves and production performance of large data sets of analog reservoirs, wells and fields.

  • Conventional and unconventional oil and gas reservoirs, from green-field exploration to development, enhanced/improved recovery and infill drilling.

Reservoir Surveillance with Permanent Downhole Gauges - PDG

  • Wells completed with PDG or with Electrical Submersible Pumps (ESP) equipped with downhole gauges?.  Let us look at all these data to search for free buildups to analyze, to perform MBA or RTA. 

  • PDG allows identification of:  production performance issues with artificial lift systems (ESP, Gas Lift, PCP), changes in reservoir properties (Perm & Skin) with time and well spacing or interference. 

Production Analysis and Optimization

  • Extract maximum value out of your field’s production and well performance data with workflows that include various sets of specialized engineering analysis designed to easily and quickly understand reservoir behavior and its properties.

  • Identify wells with anomalous behavior (high water cuts and high gas-oil ratios), over/under performance, and also to recognize areas of opportunities by performing ratio analyses, grid/bubble maps, time motion analyses, vintage and Waterflood pattern analyses, associated production forecasting and heterogeneity indexes. 

Wellbore Modelling and Nodal Analysis

  • Wellbore modelling and nodal analysis can assist production and reservoir engineering to predict tubing and pipeline hydraulics with accuracy and speed, to perform sensitivity calculations enabling existing well designs to be optimized and to assess the effects of future potential optimization in system’s parameters. 

  • When all the previous analyses are integrated with geology and well data, it makes possible the identification of optimization opportunities, such as: suspension/shut-off of intervals/zones with high water cuts and high gas-oil ratios (gas/water shut-off) and liquid loading in gas wells.

 

Enhanced / Improved Oil Recovery

Screening and Visualization

  • EOR screening and visualization helps to quickly and easily identify, prioritize and categorize appropriate EOR methods for a given set of reservoir properties and fluids. 

  • Screening tools based on 1996 SPE paper by Taber, Martin and Seright.

Notional Predictive Models

  • Quick and simple Notional Predictive Models to quantify the economic impact and incremental production due to the application of EOR processes.

  • Notional Predictive Models based on US Department of Energy models for CO2, Chemical, Polymer, Steam floodings, In-situ Combustion, and In-Fill Drilling.

Waterflood Performance

  • Analyze, interpret and predict the waterflood performance with time using various quick and simple analytical calculations and routines. 

  • Dake-Welge single & multi-layers, Craig-Geffen-Morse, Dykstra-Parson-Lorenz, log of WOR, mobility ratio, displacement efficiency, fractional flow and water coning analysis methods.