MudFlow: Mud Engineer Tools

MudFlow is a complete drilling fluids toolkit for mud engineers and wellsite

petroleum engineers. Over 50 mud engineering calculators, reference tables and

lab test procedures — all working fully offline, with no ads and no account.

Built by a working mud engineer for the rig floor, not the office.

WORKS WITH NO SIGNAL

Every calculation, table and report runs on your device. No internet, no login,

no data sent anywhere. Designed for offshore rigs and remote land locations

where connectivity is unreliable or absent.

MUD ENGINEERING CALCULATORS

• Mud weight up and cut back, slug and pill design

• Rheology: PV, YP, gel strength, LSYP, LSRV, Herschel-Bulkley model

• Hydraulics: annular velocity, ECD, pressure loss, nozzle TFA, jet impact

• Solids analysis, low gravity solids, dilution and centrifuge planning

• Oil/water ratio, retort analysis, water phase salinity

• Pump output: triplex and duplex, strokes and volumes

• Surge and swab, spacer and displacement design

• Torque and drag, cementing and balanced plug calculations

WELL CAPACITY AND VOLUMES

• Pipe, annular and open hole capacity

• Drill string and total well system volumes

• Pipe specifications reference tables

• Trip sheet monitoring and hole fill tracking

KILL SHEETS AND WELL CONTROL

• Surface BOP kill sheet with kill mud weight, ICP and FCP

• Pressure step-down schedule and stroke calculations

• MAASP and formation strength from leak-off test data

• Excel and PDF export for handover and reporting

SALT AND BRINE TABLES

• NaCl, KCl, CaCl2, NaBr, sodium formate and potassium formate

• Density, weight percent, salt content in lb/bbl and kg/m3

• Chloride content and crystallization temperature (TCT)

• Tap any row for a complete mixing recipe per barrel and per cubic meter

LABORATORY TEST GUIDE

Step-by-step procedures with required equipment and result interpretation:

mud density, Marsh funnel, Fann 35 rheology, API filtration, sand content,

retort, pH, alkalinity Pf/Mf, chlorides, MBT, total hardness and calcium,

electrical stability, HPHT fluid loss, POM excess lime, water phase salinity.

SPECIALIZED LAB TESTS

HPHT viscometry, particle plugging test (PPT), dynamic fluid loss, lubricity

and differential sticking, shale-fluid interaction, return permeability,

Garrett gas train, hot rolling and static aging.

CONTAMINATION AND TREATMENT

Diagnose and treat cement, gypsum, anhydrite, salt and saltwater flow,

carbonate and bicarbonate, hydrogen sulphide, carbon dioxide and drilled

solids overload, with treatment quantities calculated for your system volume.

REPORTS AND EXPORT

• Branded PDF reports with your company and client logos

• Excel export for kill sheets and mud data

• Backup and restore to your device, Google Drive, Dropbox or OneDrive

• Notes and voice memos for shift handover

ENGLISH AND FRENCH

Full bilingual interface. Every calculator, table and lab procedure is

available in both languages, with field and metric units throughout.

GLOSSARY AND ACRONYMS

Hundreds of drilling fluids terms and industry acronyms, free for everyone.

WHO USES MUDFLOW

Mud engineers, drilling fluids specialists, wellsite petroleum engineers,

fluids supervisors and coordinators, laboratory technicians, drilling

supervisors, company men and petroleum engineering students.

MudFlow is a calculation aid. Always verify critical results against your

company procedures and well control policy.

Contact: [email protected]

Website: mudflowapp.online