Well Test & Pressure Transient Analysis Training Course

Course Overview

Learning Objectives

• Explain the diffusivity equation, flow regimes, and radius of investigation in pressure transient analysis on Day 1.
• Quantify wellbore storage and skin and calculate the resulting pressure drop and flow efficiency.
• Apply superposition in time and space to represent variable rates, nearby wells, and boundaries.
• Analyze drawdown and build-up tests with Horner and superposition-time semilog methods to estimate permeability and skin.
• Estimate initial and average reservoir pressure from build-up data.
• Construct log-log derivative plots and identify wellbore storage, radial, linear, bilinear, spherical, and boundary flow regimes.
• Assess pressure and rate data quality, including gauge drift, phase segregation, tidal effects, and rate history errors.
• Interpret tests in hydraulically fractured, horizontal, and partially penetrating wells using appropriate well models.
• Identify dual porosity, radial composite, and bounded reservoir behavior, including sealing faults, channels, and closed systems.
• Analyze gas well tests using pseudo-pressure and pseudo-time, and separate mechanical from non-Darcy skin with multi-rate tests.
• Apply deconvolution and interference testing to extend the radius of investigation and assess connectivity between wells.
• Design well tests with defined objectives, durations, and gauge specifications, and report interpretations with uncertainty by the end of Day 5.

Who Should Attend

Learning Outcomes

• By the end of the course, participants will be able to:
• Explain how pressure transients travel through a reservoir and what they reveal.
• Recognize the effects of wellbore storage and skin on test data.
• Use superposition to handle changing rates and nearby boundaries.
• Calculate permeability and skin from drawdown and build-up tests.
• Estimate average reservoir pressure from build-up data.
• Read log-log derivative plots and identify each flow regime.
• Check pressure and rate data quality before interpretation.
• Interpret tests in fractured, horizontal, and partially penetrating wells.
• Recognize dual porosity, composite, and boundary responses.
• Analyze gas well tests and separate mechanical from non-Darcy skin.
• Use deconvolution and interference tests to investigate further into the reservoir.
• Design tests that can meet their interpretation objectives.
• Report results with a clear statement of uncertainty and alternative models.

Course Outline