Well Log QC Checklist — N-D, M-N, GR-Density Crossplots + Environmental Corrections
Systematic QC for every curve in your log suite — three diagnostic crossplots, auto range-flags, and a full environmental corrections checklist.
TITLE
Well Log QC Checklist — N-D, M-N, GR-Density Crossplots + Environmental Corrections
PRICE
$49 USD — one-time purchase
TAGLINE
Systematic QC for every curve in your log suite — three diagnostic crossplots, auto range-flags, and a full environmental corrections checklist.
WHO IT'S FOR
Petrophysicists and log analysts who need a documented, reproducible QC workflow before starting formation evaluation.
WHAT IT DOES
Runs your log data through three standard diagnostic crossplots (Neutron-Density, M-N lithology, GR-Density), auto-flags any curve outside expected ranges, checks depth coverage against TD/casing shoe, and generates a pass/fail QC summary. A dedicated Environmental Corrections tab documents which corrections were applied and why.
TABS INCLUDED (10)
• Instructions • Log Run QC — 8-curve table with Good/Fair/Poor ratings and auto-flags • Depth & Coverage QC — log top/bottom vs TD and casing shoe • N-D Crossplot — RHOB vs NPHI coloured by GR class; gas-effect detection • Curve Statistics — min, max, mean, std dev per curve • QC Flag Summary — pass/fail counts; overall suite QC rating • QC Report — one-page summary for the file • M-N Lithology Plot — M vs N endpoints for sandstone/limestone/dolomite identification • GR-Density Crossplot — GR vs RHOB with IGR and Vshale Larionov-T • Environmental Corrections — borehole size, salinity, gas, temperature correction checklist
KEY FEATURES
• N-D crossplot: gas effect, limestone matrix line, sandstone matrix line • M-N plot: 5 standard mineral endpoints (sandstone, limestone, dolomite, anhydrite, gypsum) • Out-of-range auto-flag per curve based on expected min/max • Environmental corrections: RHOB borehole, NPHI salinity & gas, RT shoulder bed, DT cycle-skip
TECHNICAL SPECS
• Excel 2016+ compatible — no add-ins required • 10-tab professional suite • Sample dataset with 25 log depth stations included • MDT color scheme: input cells blue, calculated grey
SHOP COPY
10-tab log QC workbook with N-D, M-N, and GR-Density crossplots, automated out-of-range flags, depth coverage check, and environmental corrections checklist.
SUGGESTED TAGS
well log QC, wireline quality control, LWD, N-D crossplot, M-N plot, petrophysics, log analysis, environmental corrections, Excel template, petroleum engineering
ABOUT RESERVOIR RISK SOLUTIONS
Built by petroleum engineers for petroleum engineers. All workbooks require only Microsoft Excel (2016+) — no plugins, no subscriptions. reservoirrisksolutions.com
What you get
- Instant workbook access after payment in your Excel Library
- Formula-driven worksheet designed for petroleum workflows
- No recurring fees and no plugin requirements
FAQ
Is this a one-time purchase?
Yes. Each workbook is sold as a one-time purchase with no recurring subscription.
How do I access purchased files?
After checkout, your file appears in Excel Library under your account for download.
Do these templates require macros or plugins?
No. Templates are designed for Excel 2016+ and do not require VBA macros or external add-ins.
