PanSystem 3.4 is a version of PanSystem®, a leading software tool for well-test analysis in the oil and gas industry, developed by Weatherford (now part of SLB following acquisitions). Released around 2010–2012 as part of the product’s evolution, it focuses on transient well testing, enabling engineers to analyze pressure and rate data from wells to estimate reservoir properties, boundaries, and performance. The software is robust, user-friendly, and supports both standard industry models and custom user-defined ones for flexibility in complex reservoir scenarios.
This version builds on earlier releases (e.g., 3.0 and 3.2) and precedes 3.5 (2013) and 4.0 (2015), with enhancements in data handling, plotting, and simulation capabilities. It remains relevant for legacy workflows, though newer versions offer improved integration and reporting.
Key Features in PanSystem 3.4
- Analysis Models: Supports a wide range of reservoir models (homogeneous, dual-porosity, fractured), boundary conditions (constant pressure, no-flow), and superposition time functions for drawdown/buildup tests.
- Diagnostic Tools: Includes log-log and semi-log plots, derivative analysis, type-curve matching, and line-fit options for quick identification of flow regimes.
- Simulation and History Matching: Nonlinear simulation for forward modeling and parameter estimation, with sensitivity analysis.
- Data Management: Imports pressure gauge data (ASCII, LAS formats), handles wavelet reduction for noisy data, and supports multi-well comparisons.
- Reporting: Customizable templates for outputs to Word or printers; supports regulatory formats like Alberta EUB PAS.
- Integration: Works with PanScan for digitizing old strip charts and PanQL for quick-look analysis via web interfaces.

