well-log-evaluation

Name: well-log-evaluation
Availability: InStock
Author: steadfastasart

Load LAS or DLIS well logs and perform end-to-end formation evaluation.

46|3|Updated Jan 26, 2026

Search Tags:#workflow #well-logs #las #petrophysics #geoscience #formation-evaluation #dlis

Ready to run

npx skills add https://github.com/SteadfastAsArt/geoscience-skills --skill well-log-evaluation

💬 Prompt for ChatGPT / Claude Chat▼

Please help me install this Agent Skill.
Skill: well-log-evaluation
Source: https://github.com/SteadfastAsArt/geoscience-skills/tree/main/workflows/well-log-evaluation
Command: npx skills add https://github.com/SteadfastAsArt/geoscience-skills --skill well-log-evaluation

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

This workflow automates end-to-end formation evaluation from LAS/DLIS loading through QC, petrophysical analysis, lithology classification, and visualization, saving geoscientists hours of manual work.

Core Features & Use Cases

Data loading: Load LAS and DLIS logs and unify depth bases for cross-curve analysis.
QC & preparation: Despike, normalize, and resample curves to a common depth grid.
Petrophysical analysis: Compute Vshale, porosity from density/neutron, water saturation, and estimated permeability.
Lithology classification: Generate a lithology striplog from log responses and visualize interval properties.
Visualization: Create 3D or 2D visualizations of well path and petrophysical properties for interpretation.
Use Case: Apply to single or multiple wells to compare formations and derive pay zones.

Quick Start

Load LAS or DLIS well logs and run the end-to-end well log evaluation workflow to produce porosity, Vshale, Sw, and lithology results.

Frequently Asked Questions about well-log-evaluation

High-intent search queries and answers about installing and using this skill.

FAQPage Schema

How do I perform petrophysical analysis on LAS well logs?▼

You can perform end-to-end well log evaluation by loading LAS or DLIS files, running QC to despike and resample curves, then computing Vshale, porosity, water saturation, and lithology classification across single or multiple wells.

Can I load DLIS files for formation evaluation alongside LAS logs?▼

Yes, you can load both DLIS and LAS well logs to unify depth bases for cross-curve analysis. The workflow parses both formats using libraries like lasio and petropy to prepare data for formation evaluation.

What is the best way to calculate Vshale and water saturation from well logs?▼

The best way to calculate Vshale and water saturation is using an end-to-end formation evaluation workflow that applies QC, computes porosity from density/neutron curves, and estimates permeability for lithology classification.

Do I need pyvista to visualize well path and petrophysical properties?▼

Yes, pyvista is required to create optional 3D visualizations of the well path and petrophysical properties. The workflow also supports 2D visualization for interpreting interval properties and lithology striplogs.

How do I normalize and resample well log curves to a common depth grid?▼

You normalize and resample well log curves to a common depth grid by running the QC and preparation step, which unifies depth bases across multiple wells to enable accurate cross-curve petrophysical analysis.

Does this workflow support multi-well formation evaluation to identify pay zones?▼

Yes, the workflow supports multi-well formation evaluation, allowing you to compare formations, generate lithology striplogs, and derive pay zones across several wells loaded from LAS or DLIS files.