# Author: admin

### Skin Model

Mechanical/Geometrical Skin If a reliable skin value is available from transient well testing, then this value should be directly entered…

### Lead or Power Screw Critical Speed (N) Formula & Calculator

lead screw critical speed (N) calculator – step by step calculation, formula & solved example problem to find the angular velocity…

### Helical Spring Shear Stress (τ) Calculation

helical linear spring shear stress (τ) calculator – step by step calculation, formula & solved example problem to find the shear…

### Power Screw Efficiency (η) Calculation

power screw efficiency (η) calculator – step by step calculation, formula & solved example problem to find the efficiency of square…

### Square Thread – Torque Required to Minimize Load Formula & Calculator

Torque required to lower load calculator – step by step calculation, formula & solved example problem to find the torque required…

### Torque Required to Raise Load Calculator

Square Thread – Torque Required to Raise Load Formula & Calculator Torque required to raise load calculator – step by step…

### Z Factor

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### Liquid Orifice Plate Calculation

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### Gas Orifice Plate Calculation

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### Evaluation of Hydrocarbon Saturation – RST

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### How to measure fluid saturation behind casing – Enter the Sigma mode.

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