Field Notes
Deeper dives, practical guidance, and industry perspective — beyond the core reference pages.
Oil Rig Boots: How to Choose the Right Pair
What rig work demands from a safety boot: ASTM F2413 and EN ISO 20345 labels, steel vs composite toe, met guards, pull-on vs lace-up, and when to replace.
Read more →Hydrostatic Pressure Math: Why the 0.052 Constant Never Changes
Where the 0.052 in P = 0.052 × MW × TVD actually comes from, why it's a fixed unit conversion and not a property of mud, and what people usually get wrong about it.
Read more →When You Can't Pump: A Real 48-Hour Volumetric Kill
A real account of a volumetric kill run when the well couldn't take circulation — why pump-a-little-and-shut-in was the wrong call, and what killing it with one full circulation actually looked like.
Read more →Driller's Method and Wait and Weight: Common Mix-Ups
Where the Driller's Method, Wait and Weight, and Volumetric Method get confused with each other — which pressure to hold constant, what a balanced well actually looks like, and the reasoning behind each answer.
Read more →Kick Warning Signs and Shut-In: Common Mistakes
Kick indicators, barrier types, and shut-in procedure questions that read as straightforward but hide a real trap — ballooning, float assemblies, flow checks, and the reasoning behind each answer.
Read more →Pit Volumes and MAASP: Where the Math Gets Misread
Kick tolerance, MAASP, ballooning, and pit-volume reasoning that sounds right but isn't — and the correct logic behind each answer.
Read more →Shut-In Pressure Behavior: What Actually Happens
How SIDPP, SICP, and bottom hole pressure actually behave during shut-in, migration, and stripping operations — and where the assumptions people bring to it go wrong.
Read more →Subsea Well Control: Two Concepts Worth Knowing Cold
A short pair of subsea-specific well control concepts that are easy to get backwards — BOP panel pressure behavior and fixed bore ram ratings.
Read more →Well Control Basics: Common Misconceptions
Fundamental well control concepts that sound simple but are easy to get backwards — kick indicators, BOP components, abnormal pressure, and the reasoning behind each correct answer.
Read more →Well Control Curveballs: Trickier Scenarios Worth a Second Look
Worked pressure problems and edge-case well control scenarios that don't fit neatly into a single category — mud gas separators, PWD readings, BOP testing, and the reasoning behind each answer.
Read more →Well Control Pressure Concepts That Get Misread
Pressure, hydrostatic, and definition-based well control questions that read one way but mean another — ECD, porosity, SIDPP, and the reasoning behind each correct answer.
Read more →Differential Sticking: The Three Conditions, and How to Remove One
Differential sticking needs overbalance, a permeable formation and a stationary string. Remove any one and it cannot happen. Why the force grows with time, and why freeing the pipe means lowering pressure rather than pulling harder.
Read more →Drilling Jars Explained: Why an Impact Frees Pipe That Pulling Cannot
A jar turns steady overpull into a short, violent blow by storing stretch in the drill pipe and releasing it at once. How cocking and firing work, up jars versus down jars, and why jarring is a designed operation rather than brute force.
Read more →Hole Cleaning in High-Angle Wells: Why Cuttings Beds Form and How to Shift Them
Above roughly 50 degrees, cuttings stop being carried out and start settling into beds. Why gravity changes the problem, what actually moves a bed, and how to read the signs before the string packs off.
Read more →Torque and Drag as Early Warning: Reading the Trend, Not the Number
A torque figure means nothing on its own. What matters is the gap between what the model predicted and what the string actually did — and that gap opens several connections before the value ever looks alarming.
Read more →Permit to Work System on Drilling Rigs: A Complete Guide
How the PTW system works on a rig in practice: hot work, confined space, electrical isolation and LOTO, SIMOPS, and the step-by-step process for permits that hold up under audit and real conditions.
Read more →STOP Card System: How to Write One That Works
What a STOP card is, what makes an observation worth reviewing, and why the review cycle — not the monthly card count — decides if the program is real.
Read more →Real-Time Drilling Performance Data: Platforms and Practices
How real-time drilling data actually gets used on modern rigs — the systems behind it, what MWD/LWD data streams enable, and why the practice matters more than any single platform.
Read more →Roustabout to Driller: What the Timeline Actually Looks Like
A realistic look at how long it actually takes to progress from an entry-level rig job to running the console, and what determines whether you move faster or slower than average.
Read more →What Is a Kick? Well Control Explained for New Rig Crews
What a kick actually is, why hydrostatic pressure fails, how a flow check confirms an influx, and why hard and soft shut-in exist — the reasoning behind the procedures, for people learning them.
Read more →Five Warning Signs of a Kick Every New Hand Should Know Cold
The early indicators of a well kick, why they matter more than the dramatic ones you see in movies, and what to actually do the moment you notice them.
Read more →Rig Floor PPE Guide: Personal Protective Equipment for Drilling Operations
The complete PPE reference for drilling crews: ANSI, OSHA, and API standards for hard hats, gloves, FR clothing, fall protection, and H2S gear on the rig floor.
Read more →Welcome to RigFloorHQ: A Complete Field Reference, Built From the Ground Up
Why we built RigFloorHQ, what's in it today, and what's coming next for anyone working in or entering the oil and gas drilling industry.
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