Drill Annulus Pro

Quickly figure out your drilling annulus capacities with this intuitive and easy to use slide calculator. Modeled after a variety of hand-held physical calculators this app is designed for quick calculation and reference of how differences between drilling pipe sizes and hole sizes convert to annulus capacities. Whether in an office meeting where a technical question arises or on the well-site where a decision needs to be made quickly this can be a very useful quick reference tool.