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Pressure-Transient Analysis: Horner & Derivative Diagnostics
Inside this lesson
- Define a well test as a deliberate rate change with a recorded pressure response - drawdown or buildup
- Construct the Horner plot and read its semilog straight-line slope m to find permeability via k = 162.6 q mu B / (m h)
- Explain how skin is also obtained from the Horner analysis
- Interpret the pressure-derivative (Bourdet) diagnostic to fingerprint flow regimes: early wellbore storage, the radial-flow plateau, and late-time boundary responses
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Educational content covering topics typical of an undergraduate petroleum-engineering curriculum. Not a substitute for accredited coursework, and not suitable for real well, reservoir, or field decisions without review by a licensed professional engineer. Well-control content is conceptual awareness only and is not IWCF/IADC training. References to reserves or resource classifications are descriptive context only, not regulatory disclosure or booking guidance.