Geoscience software · Crafted in India
Borehole CSV in. AutoCAD-ready drawings out.
Upload your borehole interval table. SeamChart returns seam correlation charts, fence diagrams, graphic logs and seam structure plots — not as pictures, but as layered DXF that opens straight in AutoCAD, Civil 3D or BricsCAD (one Save-As from DWG), hatched from a standard library of graphic lithological symbols your reviewers already recognise. Plot-ready vector PDF and high-resolution PNG come along free. No install, no license server, no dongle.
Free tier at launch · Release notes only, no spam
The workflow reads like a borehole: top to bottom, no detours
Drop in the CSVs you already keep
The interval table — BOREHOLE, FROM, TO, LITHOLOGY, SEAM_NAME. Add the collar file (easting, northing, RL) for fence diagrams, and the band-by-band quality CSV (recovery, M%, Ash%) for seam structure plots. Your logging sheets already carry these columns.
The engine drafts the figure
Holes hung on your marker-seam datum or true collar RL. Standard lithological hatches, seam brackets with names and depths, downhole ticks every 50 m, dashed correlation lines tying same-name seams — applied identically on every hole, whether it is hole 3 or hole 300.
A drawing, not a screenshot
Layered DXF your CAD cell edits directly — plus vector PDF for the plotter and high-resolution PNG for the report body. Batch an entire campaign from one file.
Four figures every Indian coal report must carry, from one database
Correlation charts, fence diagrams, borehole graphic logs and seam structure plots — drawn from the same interval tables. No re-entry of data, ever.
03 / LOGS & STRUCTURE
Graphic logs & seam structure plots, with the quality data in
Every borehole's banded lithology as a top-aligned column — all holes in one DXF. Then, one file per seam: a reference-style structure card for each hole, windowed from 3 m above the seam roof to 1 m below the floor, with wavy break lines, recovered and effective thickness, band-by-band M / Ash / VM / FC, and the Seam Overall Analysis table (I100 / I50 / I30) drawn at the bottom — the figure your GR's seam chapter is built on.
| WINDOW | roof −3.0 m → floor +1.0 m, wavy break lines |
| BANDS | lithology · thickness · recovery %, standard hatching |
| QUALITY | M% · Ash% · VM · FC per band |
| THICKNESS | recovered & effective, per intersection |
| ANALYSIS | Seam Overall table — I100 / I50 / I30 scenarios |
| SCALE | exaggeration selectable, default 2 units / m |
DXF the way a draughtsman would set it up himself
Open the file in AutoCAD, Civil 3D or BricsCAD and it behaves like an in-house drawing: 1 drawing unit = 1 metre, vertical scale 1:1, Y=0 on the datum, ACI colours, and every element class on its own named layer — switch off, restyle, or plot exactly what you need. Save as DWG in one step, insert into the mine plan, hand to the survey office.
Your standards, not ours
A complete lithological hatch library ships built in — and everything about it is yours to override. Load your own AutoCAD .pat hatch files, remap any lithology code with a one-line JSON entry (pattern, ACI colour, scale, description), set the datum seam, roof or floor reference, column pitch and width, hatch scale, plot title. The output follows your office's drawing conventions, run after run.
The hatch library, drawn correctly
Hatching follows a standard library of graphic lithological symbols — the symbology every Indian coal reviewer was trained on. Coal-measure lithologies are first-class: coal, shaly coal, carbonaceous shale high and low, shale, sandy shale, and fine / medium / coarse sandstone, out of the box.
Complimentary · For the drawing office
The Lithology Hatch-Pattern Atlas
A downloadable reference of standard graphic lithological symbols as a printable PDF plate plus the AutoCAD .pat file — load it into your own CAD templates today, whether or not you ever use SeamChart. No account needed; just an email.
Priced so a junior explorer can expense it without a meeting
No perpetual license. No hardware dongle. No procurement cycle.
Field Free
₹0 · FOREVER
- 1 figure at a time
- Full lithological hatch library
- PNG export with watermark
Campaign
LAUNCH PRICING — ANNOUNCED TO THE LIST
- Layered DXF export — CAD-ready, plus vector PDF
- All four figures — correlation, fence, logs, seam structure
- Unlimited holes, batch rendering, auto snake traverse
- Custom .pat hatches, litho-map & title templates
- Priority email support
Early-access subscribers lock the launch price for 12 months.