Engineering
Science
Financial
Measurement Unit
Drilling
- Surge & Swab Pressures
- Bit Hydraulics Optimization
- Cuttings Slip Velocity
- Equivalent Circulation Density Of Mud
- Basic Solids Analysis
- Drilling Rate d -Exponent
- Directional Survey
- Well Schematic I - Single vertical completion
- Well Schematic II - Dual vertical completion
- Well Schematic III - Horizontal single completion
- Casing Data Browser
Reservoir I
- Material Balance Equation I:SolutionGas-GasCap Drive
- Material Balance Equation II:SolutionGas with GasCap Withdrawal/Injection
- Pressure Buildup Analysis - Horner Plot (Oilwell)
- Inflow Performance Relationships For solution-gas drive Vertical wells
- Inflow Performance Relationships For solution-gas drive Slanted wells
- Inflow Performance Relationships For solution-gas drive Horizontal wells
- Horizontal well performance (oil)
- Water coning in a vertical well
- Combined gas & water coning in a vertical well
- Water breakthrough time in a vertical well
- Original Gas In Place: Volumetric reservoir - p/z method
- Original Gas In Place: Abnormally Pressured gas reservoir
- Coalbed Methane: Original Gas In Place by P/Z* method
- Coalbed Methane: Reservoir performance prediction
- Gaswell deliverability - Backpressure AOF test
- Horizontal well performance (gas)
- Gas Properties - I: Z, ì , B g and Sg for a given Composition
- Gas Properties - II: Z, ì , B g for a given Specific gravity
- Real gas pseudo-pressure
- Gas coning in a vertical well
Reservoir II - Gas
Production
- Decline Curve Analysis
- Flow through chokes (1-phase)
- Flow through chokes (2-phase)
- Gaswell flow in Vertical Tubing
- Gas flow in Horizontal Pipeline
- Gas flow in Inclined Pipeline
- API Gravity Correction to 60°F
- Gas well load-up: Critical Rate
- Tubing Data Browser
- Skin Factors In Perforated Vertical Wells
- Skin Factors In Perforated Horizontal Wells
- Productivity Ratio Of Perforated Horizontal Wells
Geosciences
- Basic cashflow analysis
- Comprehensive cashflow analysis (oilfield)
- Comprehensive cashflow analysis (gasfield)
- "Optimum" number of Oilfield development wells
- Project selection/Capital allocation by Ranking method
Economics
- Units Conversion Calculators
- Units Conversion factors
- World Oil & Gas Production & Reserves - Country by country Data
- Mechanical Engineering Calculators
- Civil Engineering Calculators
- Chemical Engineering Calculators
Miscellaneous
Physical Properties
- Physical properties of Water
- Liquid-phase Diffusion coefficients
- Gas Z-factor, Viscosity & Specific Gravity for a given Composition
- Gas Z-factor & Viscosity for a given Specific gravity
- API gravity Correction To 60°F
Fluid Flow
- Reynolds Number and Friction Factors
- Vapor-Liquid 2-Phase Vertical downflow
- Flow Through Packed Bed
- Liquid Pipe flow: Pressure Drop calculation
- Liquid Pipe flow: Pipe Length calculation
- Liquid Pipe flow: Flow Rate calculation
- Liquid Pipe flow: Pipe Diameter calculation
- Gas flow in Horizontal Pipeline
- Gas flow in Inclined Pipeline
Heat Transfer
Equipment Sizing
- Sizing Of Liquid-Vapor Separators
- Partial Volumes Of Tanks
- Orifice Sizing for fluid flow
- Gas Compressor performance
Mass Transfer
Economics
Measurement Units
Other Calculators
- Petroleum Engineering Calculators
- Chemistry Calculators
- Mechanical Engineering Calculators
- Civil Engineering Calculators
Machine Mechanics
- Rolling Wheel
- Motion of Crank-Slider Mechanism
- Buckling of Helical Spring
- Bolt & Nut Bolted Joint: Stiffnesses of components
- Cap Screw Bolted Joint: Stiffnesses of components
- Bolted Joint: Static and Dynamic loading
- Butt Weld under axial and transverse loading
- Fillet Weld under Torsional loading
- Fillet Weld under Bending loading
Material Stresses
- Pressure loading: Thin-walled vessels (Sphere & Cylinder)
- Pressure loading: Thick-walled Cylinder
- Stresses due to Interference (press or shrink) fit
- Contact stresses: Sphere on a sphere
- Contact stresses: Sphere on a Flat surface
- Contact stresses: Cylinder on a cylinder
- Contact stresses: Cylinder on a Flat surface
- Rotational loading: Thin disk
- 2D Stresses & Mohr's Circle
- 3D Stresses & Mohr's Circles
- Static Failure analysis: Ductile material
- Static Failure analysis: Brittle material
- Buckling of Column with Rectangular cross-section
- Buckling of Column with Circular cross-section
- Fatigue & dynamic Failure analysis
- Stress Concentration factors: Two U-Notches in a Rectangular member
- Stress Concentration factors: Circular Hole in a Rectangular member
- Stress Concentration factors: U-Notch in a Circular shaft
- Stress Concentration factors: Square Shoulder with Fillet in a Circular shaft
- Stress Concentration factors: Radial Hole in hollow or solid Circular shaft
Fluid Flow
- Reynolds Number and Friction Factors
- Liquid Pipe flow: Pressure Drop calculation
- Liquid Pipe flow: Pipe Length calculation
- Liquid Pipe flow: Flow Rate calculation
- Liquid Pipe flow: Pipe Diameter calculation
- Gas Z-factor, Viscosity & Specific Gravity for a given Composition
- Gas Z-factor & Viscosity for a given Specific gravity
- Gas flow in Horizontal Pipeline
- Gas flow in Inclined Pipeline
- Forces on a pipe bend
Heat Transfer
Vibrations
Metalworking
Economics
- Simply-supported beam with concentrated Force at intermediate point
- Simply-supported beam with concentrated Couple at intermediate point
- Simply-supported beam with Uniform Distributed load
- Simply-supported beam with Triangular Distributed load
- Simply-supported beam with Twin concentrated Forces
- Simply-supported beam with Single overhang and concentrated Force at free end
- Simply-supported beam with Single overhang and uniform Distributed load
- Simply-supported beam with Double overhang and concentrated Forces both ends
- Simply-supported beam with Double overhang and Distributed load
- Simply-supported beam with Multiple and Varied loading: I
- Simply-supported beam with Multiple and Varied loading: II
- Cantilevered beam with concentrated Force at intermediate point
- Cantilevered beam with concentrated Couple at intermediate point
- Cantilevered beam with Uniform Distributed load
- Cantilevered beam with Triangular Distributed load
Beam Flexure
Miscellaneous
- Units Conversion Calculators
- Units Conversion factors
- Petroleum Engineering Calculators
- Civil Engineering Calculators
- Chemical Engineering Calculators
Structure I
- Simply-supported beam with concentrated Force at intermediate point
- Simply-supported beam with concentrated Couple at intermediate point
- Simply-supported beam with Uniform Distributed load
- Simply-supported beam with Triangular Distributed load
- Simply-supported beam with Twin concentrated Forces
- Simply-supported beam with Single overhang and concentrated Force at free end
- Simply-supported beam with Single overhang and uniform Distributed load
- Simply-supported beam with Double overhang and concentrated Forces both ends
- Simply-supported beam with Double overhang and Distributed load
- Simply-supported beam with Multiple and Varied loading: I
- Simply-supported beam with Multiple and Varied loading: II
- Cantilevered beam with concentrated Force at intermediate point
- Cantilevered beam with concentrated Couple at intermediate point
- Cantilevered beam with Uniform Distributed load
- Cantilevered beam with Triangular Distributed load
Structure II
- Fixed Frame With Concentrated Force At Any Point On Girder
- Hinged Frame With Concentrated Force At Any Point On Girder
- Fixed Frame With Distributed Force On Girder
- Hinged Frame With Distributed Force On Girder
- Fixed Parabolic Arch With Concentrated Force
- Two-Hinged Parabolic Arch With Concentrated Force
- Fixed Parabolic Arch With Distributed Force
- Two-Hinged Parabolic Arch With Distributed Force
- Triangular Truss Under Concentrated Forces
- Bridge Truss Under Concentrated Forces
- Cantilever Truss Under Concentrated Forces
- 2D Stresses & Mohr's Circle
- 3D Stresses & Mohr's Circles
- Static Failure analysis: Ductile material
- Static Failure analysis: Brittle material
- Buckling of Column with Rectangular cross-section
- Buckling of Column with Circular cross-section
- Fatigue & dynamic Failure analysis
Structure III
I
I
Geotechnical
- Physical Properties of Soils
- Stresses In Soils Due To Concentrated Surface Load
- Soil Consolidation And Settlement
Transportation
Hydraulics
Hydrology
Economics
Miscellaneous
- Units Conversion Calculators
- Units Conversion factors
- Mechanical Engineering Calculators
- Petroleum Engineering Calculators
- Chemical Engineering Calculators
General
Nucleic Acids
Polymerase Chain Reaction
Protein
Centrifugation
Measurement Units
Miscellaneous
Chemical Structure
- Vector addition
- Newton's laws of motion
- Equilibrium of rigid body under coplanar forces
- Simple machines
Mechanics
Heat
Sound
Electricity
Light
Nuclear
Measurement Units
Miscellaneous
Atomic Structure
Formulas&Composition
Gases
Calorimetry
Concentration&Solutions
Acids & Bases
Measurement Units
Chemical Kinetics
Electrochemistry
Miscellaneous
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