Tools
Engineering tools that open in the browser
Small cloud-based tools and calculators for coiled tubing and oilfield work. Each one explains its method, so you can check the result.
CT Simulator
A full application, not a calculator
The CT Simulator is a workspace laid out like a drawing program, with its own steps, palettes and command line. It runs in the browser and keeps your project on your computer. Draw the well, build the CT string and the BHA, set the job and read the weight indicator, lock-up depth, set-down weight and overpull.
Open the CT SimulatorLarge screens and tablets only. There is no mobile version.
Calculators
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CT Pressure Loss
HydraulicsFrictional pressure loss for power-law fluids pumped through coiled tubing, with the string split into straight and reel-wound sections.
- Inputs
- Fluid density, power-law n and K · Reel size, tubing size and wall · String length and length on the reel · Flow rate
- Results
- Velocity and Reynolds number · Flow regime, straight and curved · Pressure loss per section and total
Available Open the tool -
CT Strength Limits
MechanicsStresses, burst, collapse and tension limits of coiled tubing for a given load, with the von Mises check against the yield factor.
- Inputs
- Tubing size, wall and ovality · Yield strength, yield factor and modulus · Pressures, axial force and bend radius
- Results
- Axial, hoop and von Mises stress · Burst and collapse (API 5C3, 5C7) · Tension limits and the yield-factor check
Available Open the tool -
Nitrogen Displacement
NitrogenNitrogen needed to displace the fluid in a well through coiled tubing, including the tubing left on the reel.
- Inputs
- Coiled tubing length, size and pumping depth · Production tubing and well fluid density · Temperatures, compressibility and nitrogen density
- Results
- Pressure at depth and at the wellhead · Gas volume at standard conditions · Liquid nitrogen volume and mass
Available Open the tool -
Nitrogen for a Vessel
NitrogenNitrogen needed to bring a vessel up to a pressure at a given temperature.
- Inputs
- Vessel volume · Pressure to raise to, and starting pressure · Temperature and compressibility
- Results
- Gas volume at standard conditions · Liquid nitrogen volume · Nitrogen mass
Available Open the tool -
Well Kill
Well controlKill fluid density, volumes and bullheading pressure for a producing well, and the kill sheet of a drilling well.
- Inputs
- Depth, pressures and fluid density · Tubing and casing sizes, or string and annulus volumes · Pump rate or kill-rate pressure
- Results
- Kill fluid density · Volumes, strokes and times · Bullheading pressure, or ICP, FCP and the pressure schedule
Available Open the tool
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The tools are aids for engineers. Check the inputs and the results: responsibility for any decision stays with the user.