Industrial, Logistics & Plant Operations

Oil, Gas & Drilling Calculators

Rig-floor and lease-office math that no consumer calculator site covers: mud hydraulics, well control, crude quality, production decline and royalty checks. Used by drilling and mud engineers, rig hands, production analysts and mineral owners.

2 calculators in this category

API Gravity Calculator (Specific Gravity, lb/gal & bbl per Ton)API MPMS Chapter 11.1 volume correction; API gravity defined at 60/60 °FAPI gravity is an inverted density scale built so that heavier oil gets a lower number and 10 °API is exactly the density of…
Oil & Gas Royalty Calculator (Net Revenue Interest & Monthly Check)Division order net revenue interest conventionA royalty check is the product of three things: how much of the drilling unit you own, what fraction of production your lease…

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