Boundary Effects Analysis

Analysis of boundary effects on wellbore pressure. Compares infinite acting reservoir with single linear fault and perpendicular sealing faults.

Buildup Near Sealing Fault — Boundary Detection

Pressure buildup interpretation near a linear sealing fault. Demonstrates the classic derivative doubling signature: early IARF yields the correct permeability, then the Bourdet derivative doubles as the pressure signal reaches the fault and reflects back. Compares fault model against infinite reservoir to highlight the boundary effect.

Constant Pressure Boundary

Analysis of constant pressure boundary effects. Compares sealing boundaries with constant pressure boundaries (aquifer support).

Constant-Rate Drawdown Analysis

Constant-rate drawdown test interpretation using MDH (Miller-Dyes-Hutchinson) semilog analysis with Bourdet derivative for IARF identification. The most fundamental well test — a single rate from initial conditions. Includes forward model for synthetic data generation and round-trip validation.

Horner Plot Analysis — P* Calculation

Pressure buildup interpretation using Horner semilog analysis with Bourdet derivative for IARF identification. Includes forward model for synthetic data generation and round-trip validation.

Radial Flow Analysis

Infinite acting radial flow analysis using line source solution and vertical well models. Calculates dimensionless pressure for pressure transient interpretation.

Skin Factor Effect

Demonstrates the effect of skin factor on wellbore pressure. Positive skin indicates damage, negative skin indicates stimulation.

Wellbore Storage & Skin — Type Curve Diagnostic

Dimensionless type curve display for wellbore storage and skin effects. Compares three WBS/skin scenarios showing how the CDe²ˢ grouping controls the transition from unit-slope storage to radial flow. Includes end-of-WBS time estimation and the 1.5 log-cycle rule for IARF onset.

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