DRILL CALC - Oilfield Tool
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About this app
DRILL/CALC — Professional Drilling Fluids & Hydraulics Calculator
Built by drilling professionals, for drilling professionals. DRILL/CALC is the all-in-one field toolkit for mud engineers, drilling supervisors, fluid engineers, and oilfield consultants who need fast, accurate calculations on the rig.
━━━ CORE CALCULATORS ━━━
• Hydrostatic Pressure — HP = 0.052 × MW × TVD
• ECD (Equivalent Circulating Density)
• Kill Mud Weight (well control)
• Hole & Annulus Volume / Capacity
• String Displacement
• Mud Weight Mixing (barite, hematite)
• Vertical Depth (TVD) — Average, Balanced Tangential & Minimum Curvature methods
• Flow Rate & Pump Output (SPM-based)
• Hydraulics & Friction Pressure Loss — Bingham Plastic, Power Law & Herschel-Bulkley models
• Rheology Profile — full 3-model overlay with rheogram chart
• Universal Unit Converter — Pressure, Temperature, Mud Weight, Depth, Flow Rate, Volume, Density
━━━ BRINE CALCULATIONS ━━━
• NaCl, KCl, CaCl₂, CaBr₂, NaBr, ZnBr₂, CsHCO₂, KHCO₂
• CaBr₂ / CaCl₂ Mixing Tool (Baroid Table 3.16 procedure)
• Complete API Brine Reference Table with crystallization & freeze points
━━━ MICA AI ASSISTANT ━━━
Built-in AI assistant trained on drilling fluids and oilfield engineering. Ask questions in plain English, get instant expert answers — even offline thanks to a built-in knowledge base of 24 topics.
━━━ PDF REPORTS ━━━
Export professional PDF reports with all inputs, results, and graphs — ready to share with the company man, working team, or client. Includes full procedure steps for brine mixing.
━━━ KEY FEATURES ━━━
• Works in both Metric and Imperial units (auto-converts on the fly)
• Light and dark mode with frosted-glass UI
• Saves your last inputs on every calculator — no re-typing after restart
• Clean, fast, no-nonsense interface designed for the rig site
• No internet required for core calculators
━━━ WHO IT'S FOR ━━━
• Mud Engineers
• Drilling Supervisors / Company Men
• Fluid Engineers
• Drilling Consultants
• Petroleum Engineering students
━━━ DISCLAIMER ━━━
DRILL/CALC is an engineering aid. All results should be verified against rig-specific conditions and company procedures. The developer is not liable for operational decisions made based on app outputs.
Developed and maintained by Ojana DEV.
Built by drilling professionals, for drilling professionals. DRILL/CALC is the all-in-one field toolkit for mud engineers, drilling supervisors, fluid engineers, and oilfield consultants who need fast, accurate calculations on the rig.
━━━ CORE CALCULATORS ━━━
• Hydrostatic Pressure — HP = 0.052 × MW × TVD
• ECD (Equivalent Circulating Density)
• Kill Mud Weight (well control)
• Hole & Annulus Volume / Capacity
• String Displacement
• Mud Weight Mixing (barite, hematite)
• Vertical Depth (TVD) — Average, Balanced Tangential & Minimum Curvature methods
• Flow Rate & Pump Output (SPM-based)
• Hydraulics & Friction Pressure Loss — Bingham Plastic, Power Law & Herschel-Bulkley models
• Rheology Profile — full 3-model overlay with rheogram chart
• Universal Unit Converter — Pressure, Temperature, Mud Weight, Depth, Flow Rate, Volume, Density
━━━ BRINE CALCULATIONS ━━━
• NaCl, KCl, CaCl₂, CaBr₂, NaBr, ZnBr₂, CsHCO₂, KHCO₂
• CaBr₂ / CaCl₂ Mixing Tool (Baroid Table 3.16 procedure)
• Complete API Brine Reference Table with crystallization & freeze points
━━━ MICA AI ASSISTANT ━━━
Built-in AI assistant trained on drilling fluids and oilfield engineering. Ask questions in plain English, get instant expert answers — even offline thanks to a built-in knowledge base of 24 topics.
━━━ PDF REPORTS ━━━
Export professional PDF reports with all inputs, results, and graphs — ready to share with the company man, working team, or client. Includes full procedure steps for brine mixing.
━━━ KEY FEATURES ━━━
• Works in both Metric and Imperial units (auto-converts on the fly)
• Light and dark mode with frosted-glass UI
• Saves your last inputs on every calculator — no re-typing after restart
• Clean, fast, no-nonsense interface designed for the rig site
• No internet required for core calculators
━━━ WHO IT'S FOR ━━━
• Mud Engineers
• Drilling Supervisors / Company Men
• Fluid Engineers
• Drilling Consultants
• Petroleum Engineering students
━━━ DISCLAIMER ━━━
DRILL/CALC is an engineering aid. All results should be verified against rig-specific conditions and company procedures. The developer is not liable for operational decisions made based on app outputs.
Developed and maintained by Ojana DEV.
Oilfield engineering toolkit: mud weight, ECD, hydraulics, brine & MICA AI
Updated on
Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
What’s new
Introducing a new Drilling Fluids Engineering knowledge pack with detailed guidelines, procedures, and reference tables. Also includes bug fixes for MICA purchase credits and improved content readability.
App support
phone
Phone number
+213659114002
About the developer
Zine Elaabidine ROUABHI
ojanadev.studio@gmail.com
Yabous Center
Khenchela 40023
Algeria