Well Test Analysis
تحليل اختبارات الآبار
- Next date
- 21–25 December 2026Dubai
- Fees from
- £2,950per delegate
- Formats
- Classroom · Online5 sessions
- Duration
- 5 daysCertificate
Overview
A well test is one of the few chances to measure how a reservoir behaves under real flowing conditions, and a well-designed test can answer questions that no log or core can. This course teaches participants how to plan tests that deliver useful data and how to interpret the results with confidence. Starting from the diffusivity equation, the programme explains flow regimes and shows how the pressure derivative reveals wellbore storage, skin, permeability, boundaries and reservoir heterogeneity. Participants then apply these ideas to drawdown and build-up tests, gas wells, fractured and horizontal wells, and interference tests. Throughout the week the focus stays on practical interpretation: recognising patterns, avoiding common pitfalls, checking results against geology, and writing conclusions that the asset team can use.
Objectives
- Explain the physics of transient flow and the diffusivity equation
- Identify flow regimes on log-log and derivative plots
- Estimate permeability, skin and average pressure from drawdown and build-up tests
- Recognise boundary and heterogeneity effects
- Interpret tests in gas, fractured and horizontal wells
- Design a well test that meets defined objectives
- Assess data quality and the uniqueness of interpretations
- Report results clearly for reservoir management decisions
Who should attend
Reservoir and petroleum engineers, production engineers and well test supervisors, geoscientists who use pressure data, and engineers preparing to design or witness well tests.
Training methodology
Theory is introduced in short blocks and immediately tested on real pressure data. Participants interpret a sequence of tests of increasing difficulty using spreadsheet tools and, where available, commercial interpretation software. Each exercise is reviewed as a group so that different interpretations can be compared and debated. A final design exercise asks teams to plan a test for a new well, including duration, gauges and safety considerations. Participants keep the spreadsheet templates used in class so they can apply the same workflow to their own wells.
Programme outline
Day1Fundamentals of Transient Flow
- Objectives and types of well tests
- Rock and fluid properties used in analysis
- The diffusivity equation and its assumptions
- Radial flow and the line-source solution
- Wellbore storage and skin
- Radius of investigation
- Practical exercise: semi-log analysis of a drawdown test
Day2Derivative Analysis
- Log-log and pressure derivative plots
- Identifying flow regimes
- Build-up tests and superposition
- Horner and MDH methods
- Average reservoir pressure
- Type-curve matching
- Practical exercise: interpreting a build-up test
- Practical exercise: diagnosing flow regimes
Day3Boundaries and Heterogeneity
- Sealing faults and channel reservoirs
- Closed systems and pseudo-steady state
- Constant-pressure boundaries
- Dual-porosity naturally fractured reservoirs
- Layered and composite reservoirs
- Distinguishing geology from noise
- Practical exercise: boundary identification
Day4Special Wells and Tests
- Gas well testing and pseudo-pressure
- Non-Darcy flow and deliverability tests
- Hydraulically fractured wells
- Horizontal well responses
- Interference and pulse tests
- Drill stem tests and formation testers
- Practical exercise: fractured well interpretation
Day5Test Design and Reporting
- Setting test objectives
- Duration, rates and gauge selection
- Surface equipment and safety
- Data quality control and gauge drift
- Integrating results with geology and production data
- Test design workshop
- Final assessment
Dates and fees
Fees are in GBP. per delegate.
Certificate
Every delegate who attends the full programme receives a Harfard Technology certificate of completion stating the course title, duration, dates and venue.
Frequently asked questions
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What is the difference between classroom and online?
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