This Excel-based tool enables quick, transparent, and customizable volumetric assessments for oil reservoirs using Monte Carlo simulation… no complex software required.

Key Features:

• Distribution Control

  Define the distribution type and input range for each volumetric parameter (Area, thickness, Shape factor, NTG, Porosity, So, Bo).

• Parameter dependencies

  Input correlation strengths (positive or negative) via simple correlation matrix.

• Robust Output Visualization

  • Distribution charts and summary statistics (P10, P50, P90)
  • Cross-plots for parameter relationships
  • Correlation heatmaps with intuitive color gradients

Tutorial

See how the tool works in this demo video:

https://www.youtube.com/watch?v=90FrFb2wGPg

Free Trial

Start your free trial today, risk-free.

To get started, you’ll need to launch a small executable to generate your personal license file.

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License Request

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Once you submit the form, you’ll receive your personal license file along with the Excel Tools to start using.

• Important Note:
• Excel File Security - READ!

Purchase the Tool

Convinced of the value this tool delivers?

You have three options to continue using this tool:

1. Join a monthly membership plan, starting at $10/month.

   You’ll receive licensed access to the Excel files for all tools (VBA code remains locked).

2. Purchase this tool as a standalone product, granting you full access to its VBA code for your own customisations and improvements.

3. Upgrade to the Lifetime Vault. Get access to ALL my current and future tools, with unlimited access to VBA code and full rights to edit, customise, and extend every tool as you wish.

Explore the options below to find your best fit.

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Support

👉 FAQs, Troubleshooting & Feature Request

Enjoyed this?

If you’d like to support the CrowdField project, two small actions make a big difference:

👉 Subscribe to the CrowdField YouTube channel, here

👉 Follow CrowdField on LinkedIn, here

That’s where I share short demos, workflows, and behind-the-scenes builds that don’t always make it into written content.

How did you like it?

If you can spare a moment, I would really appreciate any feedback to help me refine existing products and decide what to build next.

https://page.famewall.io/CrowdField

About the author

Alan Mourgues, MSc, is a Petroleum Reservoir Engineering Consultant with 25 years of international industry experience.

Through his consultancy, moREc, he provides subsurface and financial expertise to Australian and international clients.

Alan is also the founder of CrowdField, a platform built to help O&G professionals upskill, collaborate, and monetize their expertise.

→ Alan on LinkedIn

→ CrowdField on LinkedIn

https://embed.famewall.io/carousel/CrowdField

CrowdField

The Go-To Hub for the O&G Crowd

Technical professionals need better places to learn, build, and collaborate.

CrowdField is an ecosystem for subsurface pros to:

• Connect with businesses for freelance work
• Learn and upskill with practical tools and deep dives
• Collaborate with peers on real problems
• Turn spreadsheets, workflows, and ideas into products
• Use AI thoughtfully to boost productivity

Explore the platform at crowdfield.net

https://www.crowdfield.net/

Store

Check the growing catalog of free and paid tools to help you level up and improve productivity.

https://www.crowdfield.net/store

Memberships

Explore our Plans and choose the option that matches your ambition 👇

https://www.crowdfield.net/join