DERRICK
The wellsite drilling and well-control calculator.
DERRICK is a fast, accurate drilling and well-control calculator for the rig floor. Set up your well once and every calculator pre-fills from it, so you only change what is different today. It is built for drilling engineers, toolpushers, company men, mud engineers, and students who need the right number under pressure.
What you can do
- Run hydrostatic pressure, ECD, kill mud weight, MAASP, formation pressure, LOT and FIT, kick tolerance, pump output, capacities, buoyancy, trip margin and more.
- Read pore pressure, mud weight, ECD and fracture at any depth on the interactive mud weight window.
- Build a full kill sheet with kill mud weight, ICP, FCP and a step schedule.
- Ask an AI co-pilot that is grounded in your active well to explain a calculation, interpret a kick, or draft a handover.
- Save results to your well log, see your activity, and export reports.
- Work in Field or SI units, on iPhone and iPad, fully on device.
Free and Pro
DERRICK is free to use with one active well and the core calculators. DERRICK Pro unlocks unlimited wells, full history, export and reports, unlimited AI, and specialist modules.
Privacy first
Your wells and calculations stay on your device. No accounts, no analytics, no tracking.
Download
DERRICK is available on the App Store for iPhone and iPad.
Links
Privacy Policy: [link to your Privacy page]
Support: [link to your Support page]
Contact: pradeep.aneesh@gmail.com
Steppe Summit Studio
DERRICK assists calculation. It does not replace your company well-control procedures, the well program, or the judgment of the on-site supervisor. Always verify independently before acting.