Subsidium

Rig floor calculator. Answers update as you type; every field starts with an example value.

Screen

Units

Mud weight

Pressure

Barite sack

Check before you trust it. This is a tester version. Confirm every result against your company's kill sheet and procedures before acting on it.

Formulas use standard oilfield constants. Values you type are remembered on this device only.

Before you use Subsidium

Subsidium is a reference tool. It runs standard oilfield formulas on the numbers you enter.

It does not replace your company's procedures, approved kill sheets, engineering, or your own judgment.
Check every result before you act on it. A wrong input gives a wrong answer.
Decisions on location belong to the trained people responsible for the well.
The app is provided as is, with no warranty. Megmo LLC is not responsible for decisions made or actions taken using it.

Nothing you type leaves this device. There are no accounts, ads or tracking.

This is a tester version. If anything looks wrong, tap Report a problem.

Installed, it opens from your home screen like any app and works with no signal.

Open this page in Chrome.
Tap Install app at the top of the page, or open the ⋮ menu and tap Install app (or Add to Home screen).

After an update, open the app once with signal and tap Reload when it asks.

A new version is ready.