About this app
100+ petroleum engineering calculators for oilfield professionals. Oilfield Calculator Pro is a comprehensive petroleum engineering toolkit designed for engineers, operators, supervisors, technicians, and students working in the oil and gas industry. The app provides over 100 engineering calculators covering Well Control, Well Testing, Reservoir Engineering, Production Engineering, Enhanced Oil Recovery (EOR), Tank Volume Calculations, Separator Vessel Calculations, Unit Conversions, and many other field and office applications. Key Features: • 100+ petroleum engineering calculators • Well Control calculations (Hydrostatic Pressure, Formation Pressure, Kill Mud Weight, Pressure Gradient, and more) • Well Testing calculations and fluid property tools • Reservoir Engineering calculations including PVT, Material Balance, Relative Permeability, Reservoir Volumes, and Rock Properties • Production Engineering tools including IPR, Vogel, Fetkovich, Artificial Lift, Pressure Analysis, and Flow Performance calculations • Tank Volume calculations for multiple tank geometries with engineering drawings • Separator Vessel calculations including retention time, vessel sizing, and liquid capacity calculations • Extensive oilfield unit conversions • Interactive charts and engineering visualizations • Fast offline operation with no internet connection required • User-friendly interface optimized for field and office use Whether you are working in drilling, production, reservoir management, well testing, facilities, or petroleum engineering studies, Oilfield Calculator Pro provides reliable engineering tools to support daily operations and technical evaluations. Developed by petroleum industry professionals for practical field use. Version 2.0 Professional Petroleum Engineering Toolkit
Latest release
What’s New
Major update! Added Engineering Assistant, Engineering Handbook, Formula Library, Petroleum Glossary, new production, reservoir, well testing, artificial lift, separator and well control calculators. Added engineering charts and plots, improved navigation, enhanced dark mode, better performance, improved calculation accuracy, and various bug fixes.
Audience growth
Ratings growth
Baseline captured. Growth appears after the crawler observes a changed rating count.
Momentum comes from crawler snapshots for the tracked storefront. “Viral growth signal” means unusually fast recent rating gains; it is an indicator, not download data.
Price tracking
Price intelligence
First snapshot captured. The trend line starts after the next crawler price observation.
- First observed Aug 19, 2026 · 10:56 AM $9.99
Screenshots
