EXECUTIVE SUMMARY
Well Test Analysis provides petroleum professionals with a systematic framework for interpreting pressure and production responses to evaluate reservoir and well performance. The course explains how pressure transient behavior reveals permeability, skin, boundaries, reservoir connectivity, and flow regimes. Participants examine the fundamental equations, diagnostic plots, interpretation methods, and quality control procedures used in modern well testing. The program integrates pressure buildup, drawdown, injectivity, interference, and deliverability testing within practical reservoir engineering workflows. Particular emphasis is placed on pressure derivative analysis, flow regime identification, wellbore storage, and boundary effects. Participants learn to distinguish reservoir responses from operational disturbances and measurement limitations. Practical exercises demonstrate how well test results support reservoir characterization, production optimization, stimulation evaluation, and development planning. The course also addresses test design, data acquisition, interpretation uncertainty, and integration with geological and production information. By completion, participants will be prepared to perform reliable well test analysis and communicate technically defensible reservoir conclusions.
INTRODUCTION
Well testing is one of the most powerful techniques for evaluating dynamic reservoir behavior and near-wellbore conditions. Pressure responses recorded during controlled production or shut-in periods contain valuable information about reservoir properties and boundaries. Reliable interpretation requires understanding fluid flow, pressure diffusion, well conditions, measurement quality, and reservoir geometry. This course introduces the complete workflow from test objectives and data acquisition to diagnostic interpretation and engineering conclusions. Participants examine classical analysis methods alongside modern pressure derivative techniques and specialized test applications. The program explains how different flow regimes appear on pressure and derivative plots. Practical applications connect interpreted parameters with reservoir performance, stimulation effectiveness, connectivity, and field development decisions. Particular attention is given to data quality, model selection, non-unique solutions, and uncertainty management. The resulting knowledge enables participants to extract greater technical value from well test data and improve reservoir decision-making.
COURSE OBJECTIVES
Participants will achieve the following objectives by this course:
- Explain the fundamental principles of pressure transient behavior and reservoir flow.
- Design well tests according to technical objectives and reservoir conditions.
- Evaluate pressure, rate, fluid, and operational data quality before interpretation.
- Apply drawdown and buildup analysis methods to estimate reservoir properties.
- Interpret pressure derivative plots and identify characteristic flow regimes.
- Estimate permeability, skin, wellbore storage, and reservoir pressure accurately.
- Recognize faults, boundaries, fractures, heterogeneity, and reservoir connectivity effects.
- Analyse injectivity, interference, deliverability, and specialized well test responses.
- Assess interpretation uncertainty and distinguish alternative reservoir models.
- Integrate well test results with geology, production, completion, and reservoir studies.
TARGET AUDIENCE
This program targets a professional audience seeking to improve knowledge and skills:
- Reservoir engineers responsible for pressure transient analysis, reservoir characterization, and performance evaluation.
- Production engineers supporting well optimization, stimulation assessment, and production troubleshooting activities.
- Petroleum engineers involved in well testing, field development, and integrated reservoir studies.
- Well test engineers planning operations, acquiring pressure data, and supporting interpretation workflows.
- Geoscientists integrating dynamic reservoir information with structural and geological interpretations.
- Completion engineers evaluating skin, stimulation effectiveness, and near-wellbore performance.
- Technical managers reviewing reservoir studies, development decisions, and well performance recommendations.
- Early-career professionals seeking practical foundations in well test analysis and pressure interpretation.
COURSE OUTLINE
Day 1: Fundamentals of Well Testing and Pressure Transient Behavior
- Objectives and applications of well testing in reservoir engineering.
- Fundamentals of fluid flow through porous reservoir formations.
- Pressure diffusion and transient response development around producing wells.
- Radial flow equations and assumptions supporting well test analysis.
- Influence of rock, fluid, and well properties on pressure behavior.
- Wellbore storage, skin effect, and early-time pressure responses.
- Pressure gauges, rate measurements, and essential data acquisition requirements.
- Establishing test objectives, duration, operating procedures, and quality controls.
Day 2: Drawdown, Buildup, and Classical Interpretation Methods
- Principles and applications of pressure drawdown testing.
- Pressure buildup testing procedures and shut-in response interpretation.
- Semilog analysis for estimating permeability, skin, and reservoir pressure.
- Superposition principles for variable production and pressure histories.
- Horner analysis fundamentals and practical interpretation limitations.
- Correcting pressure responses for changing rates and operational disturbances.
- Identifying representative analysis intervals from pressure data.
- Validating classical interpretation results against reservoir and well information.
Day 3: Pressure Derivative Analysis and Flow Regime Identification
- Fundamentals of pressure derivative calculation and diagnostic interpretation.
- Recognizing wellbore storage and transition behavior on diagnostic plots.
- Identifying infinite-acting radial flow from pressure derivative responses.
- Recognizing linear, bilinear, spherical, and hemispherical flow regimes.
- Interpreting fractured wells and complex near-wellbore flow behavior.
- Identifying fault, channel, and reservoir boundary responses.
- Distinguishing geological features from operational and measurement artifacts.
- Selecting suitable reservoir models using diagnostic evidence.
Day 4: Specialized Well Tests and Reservoir Characterization
- Analysing injection and falloff tests for reservoir evaluation.
- Interpreting interference tests for connectivity and directional reservoir properties.
- Applying pulse testing methods between communicating wells.
- Evaluating gas well deliverability and pressure-dependent performance.
- Recognizing multilayer, composite, and heterogeneous reservoir responses.
- Interpreting naturally fractured and dual-porosity reservoir behavior.
- Assessing hydraulic fracture performance through pressure transient responses.
- Integrating specialized test results with geological and reservoir models.
Day 5: Test Design, Uncertainty, and Integrated Decision Support
- Designing well tests according to reservoir and operational objectives.
- Selecting test duration, production rates, shut-in periods, and measurement equipment.
- Evaluating data quality before detailed pressure transient interpretation.
- Comparing alternative models and assessing non-unique interpretation solutions.
- Quantifying uncertainty in permeability, skin, boundaries, and reservoir pressure.
- Integrating well test results with production and geological information.
- Reviewing practical cases involving complex reservoir and well responses.
- Communicating interpretation conclusions, limitations, and recommendations to decision-makers.
COURSE DURATION
This intensive professional training course is delivered over five consecutive training days and combines technical presentations, guided calculations, diagnostic plot interpretation, practical pressure transient exercises, well test case studies, group discussions, and applied problem-solving activities designed to strengthen participants’ ability to design, analyse, interpret, and communicate reliable well test results.
INSTRUCTOR INFORMATION
The course is delivered by an internationally certified expert with extensive practical and consulting experience in well test analysis, pressure transient interpretation, reservoir engineering, production evaluation, reservoir characterization, stimulation assessment, and multidisciplinary oil and gas field development projects.
FREQUENTLY ASKED QUESTIONS
- Is previous well test experience required? Basic reservoir engineering knowledge is recommended, while interpretation concepts are developed progressively.
- Does the course cover pressure derivative analysis? Yes, diagnostic plots and major reservoir flow regimes are examined extensively.
- Are buildup and drawdown tests included? Yes, both testing methods and their interpretation workflows are covered.
- Does the program address complex reservoirs? Yes, fractured, layered, bounded, composite, and heterogeneous systems are included.
- Is the course suitable for practical field applications? Yes, it combines test design, data quality, interpretation, uncertainty, and decision support.
CONCLUSION
Well Test Analysis provides a comprehensive foundation for extracting dynamic reservoir information from pressure and production data. Participants develop practical capabilities in test design, classical analysis, derivative interpretation, specialized testing, and uncertainty assessment. The course strengthens the ability to identify reservoir properties, flow regimes, boundaries, connectivity, and near-wellbore effects. It also improves integration between well test results and broader reservoir characterization and development decisions. Graduates are better prepared to perform reliable pressure transient interpretation and support technically informed reservoir management.
