About this tool Drop an AGS file to instantly plot drilling progress (depth vs time) for all locations. The tool reads the PTIM (progress by time) group and creates a chart showing how depth increased over time for each location.
Select up to 15 locations to compare on one chart. Toggle between "by reading" (sequential) and "by time" (elapsed days) views. A summary table shows final depths, record counts, and casing depths per location.
Useful for drilling performance review, billing verification (meterage summaries), and identifying periods of slow progress or downtime. Same drag-and-drop AGS pattern as existing tools.
How to use this tool 1. Drop an AGS file — the tool reads the PTIM group automatically.
2. Select locations and view mode — pick up to 15 locations, toggle between "by reading" and "by time".
3. Review the summary table — final depth, number of records, and max casing depth per location.
Technical information Reads AGS group PTIM (progress by time). Key fields: LOCA_ID, PTIM_DTIM, PTIM_DPTH, PTIM_CAS (casing depth), PTIM_REM.
"By reading" mode uses step-after interpolation. "By time" mode plots elapsed days from each location's first reading. Y-axis is reversed (depth increases downward). Supports AGS 4.0.3 through 4.1.1.
Limitations Requires PTIM data in the AGS file. Not all AGS files include progress-by-time data — it depends on the contractor and project specification.
Maximum 15 locations can be plotted simultaneously. For larger datasets, use the selector to compare subsets.
Does not calculate drilling rates or costs. For billing summaries, use the meterage data in conjunction with the HDPH (hole details) group.
Revision history 6 October 2026: Initial release
Disclaimer This tool is provided for educational and general information purposes only. It is not a substitute for professional engineering advice, design or verification.
Diggy and its contributors are not licensed engineering consultants and no results generated by this tool should be used directly for construction, design or safety-critical decisions.
All values and outputs are based on published empirical correlations and should be independently checked and confirmed by a qualified geotechnical engineer before use.
By using this tool, you accept full responsibility for how you interpret and apply the information provided.
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