DRILLINGIT
The drilling world — rigs and wells, oil, gas and geothermal, drilling technique, and the calculators every operation needs.
From sizing mud weight and annular volumes to working through hydrostatic pressure, casing capacities, ROP, and cementing figures, DrillingIt pairs free hands-on drilling calculators with practical guides and a richly illustrated museum. Plan the job, run the numbers, understand the well.
Drilling Tools & Calculators
Free calculators for the rig floor and the office — mud weight and hydrostatic pressure, annular and pipe volumes, casing capacity, drilling rate, and the everyday figures every operation needs.
Hydrostatic Pressure Calculator
Find the pressure a drilling-fluid column exerts at the bottom of the hole from mud weight and true vertical depth — the psi behind every mud-weight and well-control decision
Annular Velocity Calculator
Work out the up-hole velocity of drilling fluid in ft/min from pump flow rate, hole diameter, and pipe diameter — the speed that lifts cuttings and keeps the wellbore clean
Rate of Penetration (ROP) Calculator
Turn footage drilled and rotating hours into an average ROP in ft/hr — the headline efficiency number crews use to benchmark bit runs and plan wells
Drilling Cost Per Foot Calculator
Compare bit runs on an equal footing from bit cost, rig day rate, rotating and trip hours, and footage — the classic dollars-per-foot yardstick of bit economics
Hole Volume Calculator
Convert a diameter and depth into barrels with the 1029.4 capacity factor — open-hole or pipe volume for mud systems, displacement, and cement and spacer planning
Equivalent Circulating Density (ECD) Calculator
See the effective density the formation feels while circulating, from mud weight, annular pressure loss, and TVD — key to staying inside the drilling window and avoiding losses
The Drilling Museum
Walk an immersive museum of the machines and methods that shape the way we drill — from cable-tool rigs and early derricks to modern offshore platforms, the world of rotary and directional drilling, drill bits and drilling fluids, wells and boreholes, and oil, gas, and geothermal extraction, each in its own gallery, so you can get to know the story behind every rig: how the technology came to be, what makes it work, and the role it plays in bringing energy up from the ground.
Tour the museum →From the Journal
Fresh guides on drilling rigs and technology, onshore and offshore operations, wells and boreholes, drilling fluids, and oil, gas, and geothermal exploration and production, plus plain-language explainers and how-tos for the field and the office.
Advanced Oil Rig Operations Techniques and Methods
The Inner Workings of Modern Offshore Oil Rigs: A Deep Dive into Drilling Operations In the vast expanse of the world’s oceans, oil rigs stand as towering symbols of human…
The Revolutionary Impact of Horizontal Drilling on Modern Energy Production
The Revolutionary Impact of Horizontal Drilling on Modern Energy Production In recent decades, horizontal drilling has transformed the landscape of energy production worldwide. This advanced technique allows operators to access…
The Ultimate Blueprint for Mastering Drilling Site Preparation
The Ultimate Blueprint for Mastering Drilling Site Preparation In the high-stakes world of oil and gas exploration, site preparation can often be the silent hero that determines the difference between…
The Science and Engineering Behind Modern Rotary Drilling Techniques
The Science and Engineering Behind Modern Rotary Drilling Techniques Rotary drilling is the backbone of modern oil and gas exploration, enabling access to deep subterranean resources that power our world….
The Science and Strategy Behind Modern Land Drilling Operations
The Science and Strategy Behind Modern Land Drilling Operations In an era defined by energy demands and environmental consciousness, land drilling has evolved from rudimentary techniques to highly sophisticated operations…
The Science and Artistry Behind Deep Well Drilling: Unlocking Earth’s Hidden Resources
The Science and Artistry Behind Deep Well Drilling: Unlocking Earth’s Hidden Resources In an era where water scarcity threatens millions and energy demands continue to rise, deep well drilling emerges…
Keep Learning
Practical know-how on rig equipment, well construction, and drilling technique, plain-language explainers on hydrostatic pressure, mud systems, casing, and cementing, and field-tested tips for new hands and seasoned crews alike — everything you need to dig deeper.
Visit the Learn hub →