Oil & Gas
Upstream oil & gas field tools — the full set of drilling calculations, from mud weight and circulation to well control, drillstring loads, directional surveys and bit hydraulics, plus SIMOPS planning for concurrent rig and production operations. Field and metric units throughout.
Open Oil & Gas →Private · runs in your browserOffline · after first loadFree · no signup
Download the Oil & Gas offline pack
- Mud Weight & HydrostaticsDrilling-fluid pressure maths — hydrostatic pressure, pressure gradient, equivalent mud weight (EMW),…
- Pump Output & CirculationMud-pump output and circulation maths — triplex and duplex output per stroke and flow rate, annular velocity,…
- Hole & Pipe VolumeHole, pipe and annular capacity and volume, open- and closed-end pipe displacement, and slug calculations.…
- Well Control Kill SheetWell-control kill-sheet maths — kill mud weight, formation pressure, initial and final circulating pressures,…
- Drillstring MechanicsDrillstring load maths — buoyancy factor and buoyed weight, margin of overpull, drill-collar weight for…
- Directional SurveyDirectional-survey maths — dogleg severity by the minimum-curvature method, the TVD/north/east step between…
- Bit HydraulicsBit-hydraulics maths — total flow area from nozzle sizes, nozzle velocity, bit pressure drop, hydraulic…
- Surge, Swab & TrippingTripping maths — hole-fill per stand, a simplified surge/swab pressure estimate, trip margin, and usable…
- SIMOPS PlannerPlan Simultaneous Operations: build a matrix of permitted operations (MOPO) marking every activity pair Go /…