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Well Engineering Quick Reference (PDF)
41 essential formulas with units, assumptions, a reproducible worked example and a reference for each one. 19 pages, US oilfield units.
- Hydrostatics and well control: ECD, kill mud weight, ICP and FCP, influx gradient, MAASP
- Capacities and circulation: pipe and annular capacity, pump output, annular velocity, bottoms-up time
- Bit hydraulics: nozzle area, bit pressure drop, hydraulic horsepower, HSI
- Cementing: slurry volume with excess, sacks, mix water, displacement volume and strokes
- Simplified casing load examples: buoyancy, collapse and burst loads, design factor
- Drilling performance and cost: cost per foot, mechanical specific energy, dogleg severity
- Reservoir and production: OOIP, productivity index, radial inflow, Bg, decline, VRR
Educational use only. The guide does not replace approved well programs, operator and drilling contractor procedures, applicable standards or the judgment of qualified engineers.
Want more practice? Our question bank courses on Udemy cover drilling, mud engineering, well control, piping codes, inspection, rotating equipment and HSE.
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