Petroleum Tools

Browse all available petroleum tools.

Available tools

Petroleum Aquifer Productivity Index Calculator Extract actual independently assessed interval aquifer inflow/pressure-margin PI and unexplained intercept, not suppliedPI water-influx forecast. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Bond Number Calculator BondnumberBo=|Δρ|gL²/σ,actualgeometryscaleandphases independentlyestablished,no universalcapillarytransport criterion.
Petroleum Bubble Point Pressure Calculator Extract actual independently identified BubbleGas onset at explicit measured phase-fraction criterion, preserve all/no crossings, no inferred composition-specific equilibrium EOS or pressure operating limit. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Buckley Leverett Velocity Calculator Named Buckley–Leverett q/(φA) dfw/dSw discrete characteristic speeds, independently supplied monotone saturation coordinates and shared scalar Darcy flux; not automatically selected shock or breakthrough velocity. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Buildup Pressure Horner Calculator Evaluate independently fitted bounded Horner pressure branch with explicit log10 units and prior-flow duration, not extracting fit from actual trace or forecasting outside validated regime. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Capillary Number Calculator DeclaredcapillarynumberCa=μU/σ,SI/superficialDarcyvelocityconvention not porevelocity;no universal displacementefficiency.
Petroleum Casing Biaxial Correction Calculator Explicit plane-stress von-Mises positive hoop yield root under independently known axial stress/yield, signed measured margin only; not manufacturer biaxial burst/collapse rating, connection strength or casing safety. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Cement Slurry Yield Calculator Audit already mixed cement batch yield per weighed dry cement after independent gas-envelope correction, no mixture recipe, cement placement or seal integrity claim. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Choke Performance Gilbert Calculator Audit actual choke trial against independently calibrated Gilbert-family empirical C d^a p^b/R^c with explicit64ths-inch/psi/scf-per-bbl/bbl-day units, no unverified Gilbert edition coefficients or choke setting. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Coning Critical Rate Gas Calculator Extract actual already completed GasConing phase criterion/rate crossings, no unverified analytical critical-rate correlation, test procedure or safe production-rate claim. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Coning Critical Rate Oil Calculator Extract actual already completed OilConing phase criterion/rate crossings, no unverified analytical critical-rate correlation, test procedure or safe production-rate claim. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Coning Critical Rate Water Calculator Extract actual already completed WaterConing phase criterion/rate crossings, no unverified analytical critical-rate correlation, test procedure or safe production-rate claim. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Cuttings Transport Ratio Calculator Audit vertical dilute cuttings transport ratio1−slip/liquid speed from independently observed slip, negative settling evidence retained; no deviated-well bed transport model or prescribed circulation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Decline Curve Exponential Calculator Named Arps exponential rate AND exact integrated finite-horizon production, explicit nominal decline/day, zero-decline limit, not fitted parameters, economic reserve or infinite-tail recoverable volume. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Decline Curve Harmonic Calculator Named Arps harmonic rate AND exact integrated finite-horizon production, explicit nominal decline/day, zero-decline limit, not fitted parameters, economic reserve or infinite-tail recoverable volume. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Decline Curve Hyperbolic Calculator Named Arps hyperbolic rate AND exact integrated finite-horizon production, explicit nominal decline/day, zero-decline limit, not fitted parameters, economic reserve or infinite-tail recoverable volume. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Dew Point Pressure Calculator Extract actual independently identified DewLiquid onset at explicit measured phase-fraction criterion, preserve all/no crossings, no inferred composition-specific equilibrium EOS or pressure operating limit. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Displacement Efficiency Calculator Audit actual pore-weighted core initial/residual oil displacement, signed apparent losses retained; not sweep contact fraction or reservoir-wide recovery guarantee. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Drainage Radius Calculator Equivalentcircularradialdrainage-area radius√(A/π),not estimateactualboundaryfromwell spacingwithoutsurvey/reservoirassessment.
Petroleum Drawdown Pressure Analysis Calculator Audit actual pressure drawdown versus natural-log elapsed time against independently established slope reference, not permeability inversion or model-selected regime; signed fit evidence retained. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Equivalent Circulating Density ECD Calculator Audit actual layered annular hydrostatic inventory plus independent friction into equivalent circulating density at summed TRUE VERTICAL interval depth, no measured-depth substitution or safe mud density. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Flow Efficiency Calculator ActualwellflowefficiencyPIactual/independentundamagedPIref,no inventskin/remediationefficacy;ratioabove1retained.
Petroleum Formation Volume Factor Water Calculator Infer measured water formation-volume factor from same-parcel reservoir/stock volumes after independently measured gas-envelope correction, no generic liquid density ratio or universal PVT correlation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Fractional Flow Fw Calculator Named two-phase mobility fractional flow, explicit independently matched relative permeabilities/viscosities and no gravity/capillary gradient, not actual produced water cut or generic mass fraction. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Fracture Pressure Calculator Extract actual independently identified fracture-indicator pressure crossings from already completed records, no fracture test instructions, required injection or safe formation pressure. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Gas Coning Height Calculator Audit actual independently observed gas static/producing contact shift in same downward-positive depth datum, positive convention=gas downward, negative retreat/unknown evidence retained; no coning prediction. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Gas Viscosity Calculator Read actual same-composition/pressure gas temperature/viscosity calibration, no invented compositional fluid constants or viscosity correlation. Piecewise linear measured calibration only; no extrapolation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Gravity Number Calculator Declaredgravity/viscousnumberNg=k|Δρ|g/(μU),actualunits/velocitybasis,not Bondnumber or inferstablefloodfront.
Petroleum Horner Plot Slope Calculator Fit actual pressure versus log10[(tp+Δt)/Δt] Horner history, explicit prior-flow/shut-in elapsed durations, negative buildup slope retained; not natural-log slope or pressure-star verification. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Hydrostatic Pressure Calculator Actualconstant-densityhydrostaticgaugepressurePaρgh,no formationfracturepressureor operationalpressure selection.
Petroleum Leak Off Test Pressure Calculator Audit already observed leak-off surface readings translated with independent shoe hydrostatic/gauge calibration, not pressure testing instructions or fracture strength inferred from a curve. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Material Balance Gas Calculator Fit actual dry gas p/z versus cumulative production material balance, not EOS Z inference, volumetric OGIP or a gas reserve claim. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Material Balance Oil Calculator Explicit reduced solution-gas oil balance N=(Np[Bo+(Rp−Rs) Bg]+WpBw−We)/[Bo−Boi+(Rsi−Rs) Bg], no gas-cap, injection or rock/water compressibility terms; caller matches reservoir/stock units, signed inconsistency retained. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Mobility Ratio Calculator Evaluate independently matched displacement-front phase mobility ratio, not permeability-independent viscosity ratio or fractional-flow complement; no stability/fingering forecast. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Nodal Analysis Inflow IPR Vogel Calculator Named saturated Vogel IPR q/qmax=1−.2p/pr−.8(p/pr)², explicit independent qmax/branch; not linearPI, general multiphase inflow or production recommendation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Nodal Analysis Outflow TPR Calculator Read actual matched tubing-outflow pressure/rate calibration, no fabricated multiphase vertical-lift correlation or optimum nodal solution. Piecewise linear measured calibration only; no extrapolation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Nozzle Pressure Drop Calculator Audit actual bit pressure differential after independent non-nozzle loss subtraction, signed instrumentation mismatch retained; not Bernoulli or discharge coefficient nozzle model. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Oil Compressibility Calculator Extract actual logarithmic volume/pressure secant compressibility on independently verified single-phase oil branch, signed apparent expansion retained; not generic bulk modulus constant. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Oil Viscosity Calculator Read actual same-composition/pressure oil temperature/viscosity calibration, no invented compositional fluid constants or viscosity correlation. Piecewise linear measured calibration only; no extrapolation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Original Gas In Place OGIP Calculator Inventory independently verified nonoverlapping gas reservoir patches A h φ(1−Sw)/B into stock volume, all m²/m/m³ conventions explicit; no reserves, geology continuity or single homogeneous patch assumption. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Original Oil In Place OOIP Calculator Inventory independently verified nonoverlapping oil reservoir patches A h φ(1−Sw)/B into stock volume, all m²/m/m³ conventions explicit; no reserves, geology continuity or single homogeneous patch assumption. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Overburden Pressure Calculator Integrate actual depth-dependent overburden density and independent top stress, not single-fluid hydrostaticρgh or inferred geologic density log. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Pore Pressure Prediction Calculator Named Eaton SONIC normal/observed transit-time convention with explicit exponent (3 example), independently established overburden/hydrostatic pressures; not resistivity exponent, proven pore pressure or drilling safety. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Pressure Derivative Calculator Explicit three-point Bourdet derivative dP/dln(time) with opposite-side logarithmic interval weights on actual unequal sample times, not uniform finite differences or automatic well-test regime diagnosis. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Productivity Index From Buildup Calculator Extract Horner-fit intercept and matched prior-flow PI from actual selected buildup trace, natural-log Horner input explicit; not supplied-reservoir-pressure simplePI or full transient interpretation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Productivity Index PI Calculator Actualsingle-phasequalifiedsteadyPI q/(pr−pw),matchedvolumebasis/units,not HornerfitPIor skin/productionforecast.
Petroleum Recovery Factor Gas Calculator Audit actual produced gas against independently established original/remaining stock inventory, recovery>1 and signed mismatch retained; not reserve recovery-factor prediction. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Relative Permeability Krg Calculator Infer actual gas phase relative permeability from matched Darcy core-flow/viscosity/geometry, independently established absolute permeability and net potential drop; negative/>1 apparent measurement evidence retained, no saturation law or experiment recipe. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Relative Permeability Kro Calculator Infer actual oil phase relative permeability from matched Darcy core-flow/viscosity/geometry, independently established absolute permeability and net potential drop; negative/>1 apparent measurement evidence retained, no saturation law or experiment recipe. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Relative Permeability Krw Calculator Infer actual water phase relative permeability from matched Darcy core-flow/viscosity/geometry, independently established absolute permeability and net potential drop; negative/>1 apparent measurement evidence retained, no saturation law or experiment recipe. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Reserve Possible Calculator Summarize caller already independently assigned incremental possible reserve-category stock volumes, not1P/2P/3P cumulative sums or new reserve classification/valuation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Reserve Probable Calculator Summarize caller already independently assigned incremental probable reserve-category stock volumes, not1P/2P/3P cumulative sums or new reserve classification/valuation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Reserve Proved Calculator Summarize caller already independently assigned incremental proved reserve-category stock volumes, not1P/2P/3P cumulative sums or new reserve classification/valuation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Reservoir Pressure Average Calculator Pool actual independently same-datum corrected reservoir pressure observations by measured pore volumes, not arithmetic pressure average or inferred structural datum/geodesy. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Skin Factor Calculator Named pseudo-steady radial drawdown inverse with natural-log geometry and.75 boundary constant, independently established pressure scale; signed apparent skin not causal damage diagnosis or transient Horner skin. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Solution Gas Oil Ratio Bubble Point Calculator Audit actual independently confirmed bubble-point released solution gas versus matched stock oil, no free production-gas GOR substitution or Standing fluid constants. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Sweep Efficiency Areal Calculator Audit actual independently tracer-assessed areal sweep exposure with unavailable whole-inventory bounds, not assumed areal×vertical independence or displacement efficiency. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Sweep Efficiency Vertical Calculator Audit actual independently tracer-assessed vertical sweep exposure with unavailable whole-inventory bounds, not assumed areal×vertical independence or displacement efficiency. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Torque On Bit Calculator Reconcile actual on/off-bottom surface torque and independently measured transmission factors into signed apparent bit torque, not drive commands or string mechanical safety. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Type Curve Match Calculator Fit actual caller independently time-aligned type curve vertical log-scale and shape residual, no inferred time shift, reservoir regime identity or permeability from unspecified normalization. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Volumetric Sweep Efficiency Calculator Integrate actually assessed3D pore-cell contacted fractions with unknown volume bounds, not product of marginal areal/vertical efficiencies or assumed spatial independence. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Water Breakthrough Time Calculator Route actual cumulative flood injection history to independently established breakthrough-volume criterion, no constant rate, assumed shock saturation or operation deadline. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Water Coning Height Calculator Audit actual independently observed water static/producing contact shift in same downward-positive depth datum, positive convention=water upward, negative retreat/unknown evidence retained; no coning prediction. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Water Density Calculator Qualified piecewise-linear calibration for Petroleum Water Density Calculator. actual petroleumwatercomposition/salinity/pressure/temperature and independently measureddensitycalibration. Increasingmatchedknots,noextrapolation,no universalcurve or fit. Examplesillustrative,actualsource independently verified;no safe-use approval or validated forecast.
Petroleum Water Influx Steady State Schilthuis Calculator Named Schilthuis steady aquifer influx J∫(pi−p) dt over actual unequal-time boundary history, signed reversals retained; no generic lake inflow model or inferred aquiferPI. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Water Influx Unsteady State Van Everdingen Hurst Calculator Superpose actual pressure-step history through independently supplied VanEverdingen–Hurst unit-step kernel/normalization, not invented kernel PDE solution, Schilthuis steadyPI or exponential aquifer shortcut. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Water Viscosity Calculator Read actual same-composition/pressure water temperature/viscosity calibration, no invented compositional fluid constants or viscosity correlation. Piecewise linear measured calibration only; no extrapolation. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Well Test Dual Porosity Lambda Calculator Explicit Warren–Root λ=α rw² km/kf with independent block shape factorα in m⁻², not guessed cubic-block factor or automatic type-curve fitting. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Well Test Dual Porosity Omega Calculator Evaluate explicitly independently established fracture/(fracture+matrix) storage ratios for dual porosity, not type-curve automatic inference or pore volume fractions substituted for storativity. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Well Test Permeability Calculator Infer radial-test permeability from actual pressure versus NATURAL LOG elapsed time slope with SI qμB/(4πhm), not log10 oilfield unit constant or steady Darcy core permeability; caller independently selects regime. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Well Test Radius Of Investigation Calculator Qualified piecewise-linear calibration for Petroleum Well Test Radius Of Investigation Calculator. actual well-testregime/permeability/storagegeometry/mobility/units and independentlyvalidatedradius-of-investigationcriterion. Increasingmatchedknots,noextrapolation,no universalcurve or fit. Examplesillustrative,actualsource independently verified;no safe-use approval or validated forecast.
Petroleum Well Test Skin Calculator Extract transient test skin from observed minus independently matched zero-skin drawdown divided by2 natural-log derivative, distinct from pseudo-steady radius/.75 inverse; no damage diagnosis. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.
Petroleum Well Test Storage Coefficient Calculator Extract actual early wellbore storage from independently measured withdrawn volume/drawdown trace, retain signed fit evidence and offset, no reservoir compressibility or automatic regime assignment. Caller independently verifies units, applicability and matching conditions; no operational recipe, safety certification, causal efficacy or legal/resource classification is inferred.

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