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About Annulus Volume bbl/ft
Annulus volume calculator
This little app calculates the annulus volume between hole and pipe sizes. It also works with the Bit to Surface app for calculation of strokes.
The app has been tested on several different android devices.
What's new in the latest 1.0
Last updated on Oct 19, 2013
Minor bug fixes and improvements. Install or update to the newest version to check it out!
Videos and Screenshots
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