Drilling and Oilfield Resources
143 plain-English articles on drilling rigs, rig equipment, well control, fracking, completions and the problems crews run into downhole. Written for rig hands, engineers, students and anyone who wants to know how a well really gets drilled.
Drilling Rigs
- Slips, Elevators and Tongs – How Drill Pipe Gets Handled
- Drilling Rig Layout – Where Everything Sits on Location
- Top Drive Systems – How They Work and Why They Replaced the Kelly
- Pipe Handling Systems – Catwalks, Racking and Pipe Movers
- What Does a Derrickman Do? – Monkeyboard, Fingerboard and Escape Line
- Iron Roughneck – How Automated Pipe Makeup Works
- Rig Up and Rig Down – How a Rig Move Gets Planned
- How Much Does a Drilling Rig Cost? – Buying vs. Day Rates
- Drilling Rig Components – Every Major System, Labeled
- Automated Drilling Rigs – What Robots Do on the Rig Floor Now
- Rig Floor Equipment – A Walkaround for New Hands
- How Does an Oil Rig Work? – Drilling Rig Basics
- Crown Block and Traveling Block – How the Rig's Pulley System Works
- How Is an Oil Rig Built? – Substructure, Mast and Floor
- Kelly, Swivel and Rotary Table – How Rigs Turned Pipe Before Top Drives
- Drawworks – How the Rig's Hoisting System and Brake Work
- Can Oil Rigs Move? – How Rigs Travel From Well to Well
- Drilling Line Slip and Cut – Ton-Miles and Inspection Basics
- What Are the Main Types of Drilling Rigs? – Land and Offshore
Completion & Production
- What Does a Workover Rig Do?
- Completion Packers – Types and How They Set
- Electric Submersible Pumps – How ESPs Lift Oil
- How Does Gas Lift Work?
- What Is Coiled Tubing? – CT Units, Snubbing and CT Drilling
- Why Do Oil Rigs Have a Flame on Top? – Gas Flaring Explained
- How Do You Read an Oil Well Completion Diagram?
- What Is Wireline? – Wireline Services in Oil and Gas
- How Do Perforating Guns Work?
- How Does a Production Separator Work?
- Pipeline Pigging – Why Pipelines Need Cleaning and Inspection
- How Does a Pump Jack Work? – Sucker Rod Pumps Explained
- How Is an Oil Well Plugged and Abandoned?
- What Is Well Completion? – From Drilled Hole to Producing Well
- Wellhead vs. Christmas Tree – What's Bolted on Top of a Well?
- How Is Natural Gas Produced? – From Wellhead to Pipeline
- Artificial Lift Systems – Choosing the Right Lift for a Well
- Gas Compression – Why Natural Gas Needs a Push
Well Control & Safety
- BOP Accumulator Unit – Stored Power to Close the Well
- What Causes Oil Rig Explosions? – Blowouts, Fires and Gas
- What Is a Trip Tank and Why Does It Matter?
- Well Control Basics – Primary, Secondary and Tertiary Barriers
- What Is Shallow Gas and Why Is It So Dangerous?
- History of Oil Rig Explosions – The Disasters That Changed Drilling
- Abnormal Formation Pressure – Causes and How Drillers Predict It
- Wellbore Breathing or a Kick? – How Drillers Tell the Difference
- What Causes Gas Cut Mud?
- Choke Manifold – Controlling Pressure During a Kick
- Oilfield Safety – The Habits That Keep Rig Crews Safe
- What Is a Kick in Drilling? – Warning Signs and First Response
- Choke Line vs. Kill Line – What's the Difference?
- Is Oil Rig Work Dangerous? – Real Risks and How Crews Manage Them
- What Is a Blowout Preventer? – How a BOP Stack Works
- Annular Preventer vs. Ram Preventer – How Each One Seals
Industry & Careers
- Oilfield Equipment List – Names Every Newcomer Should Know
- How Much Do Oil Rig Workers Make? – Pay by Position
- What Is the Oil and Gas Industry? – Upstream, Midstream and Downstream
- What Is the Rig Count? – Why the Industry Watches It
- Who Invented Oil Rigs? – A Short History of Drilling
- Life on an Oil Rig – What a Hitch Is Really Like
- Best Oil Rig Movies – Ranked for Accuracy
- How Are Oil and Gas Formed?
- Oil and Gas in Oklahoma – A Short History and Where It Stands
- Oil and Gas in Texas – From Spindletop to the Permian
- Drilling Rig Crew Positions – Roughneck to Toolpusher
- How Do Companies Decide Where to Drill? – Oil and Gas Exploration
- How Does 3D Animation Help Explain Drilling Equipment?
- What Does a Roughneck Do? – The Floorhand's Job
- Types of Oilfield Services – Who Does What on a Well
- What Training Do You Need to Work on an Oil Rig?
Drilling Operations
- The Drilling Process Step by Step – From Spud to TD
- Measurement While Drilling (MWD) – How Downhole Data Reaches Surface
- HDD vs. Oilfield Directional Drilling – What's the Difference?
- Mud Motors – How Downhole Motors Turn and Steer the Bit
- How Deep Are Oil Wells?
- What Does Spudding a Well Mean?
- How Long Does It Take to Drill an Oil Well?
- Casing Cementing – How a Primary Cement Job Works
- Types of Casing – Conductor, Surface, Intermediate and Production
- LWD vs. Wireline Logging – Which Data Do You Need?
- Casing Running Operations – Getting Pipe to Bottom
- Rotary Steerable vs. Mud Motor – Which Steers Better?
- How Does Horizontal Drilling Work?
- Tripping Pipe – Pulling and Running the Drill String
- What Is Directional Drilling? – Why Wells Don't Go Straight Down
Drilling Problems
- Torque and Drag – What Rising Readings Tell the Driller
- Hole Cleaning Problems – Why Cuttings Beds Form and How to Stop Them
- Why Does Shale Swell and Slough?
- What Is a Borehole Washout?
- Differential Sticking – Causes and How to Free the Pipe
- What Causes Wellbore Instability?
- Fishing Operations – Recovering Junk and Lost Tools Downhole
- Drill String Vibration – Stick-Slip, Whirl and Bit Bounce
- Keyseat Sticking vs. Packoff – Telling Stuck Pipe Apart
- What Causes a Drill Pipe Twistoff?
- Bit Balling – Causes, Warning Signs and Prevention
- Lost Circulation Materials – What Goes Down the Hole to Stop Losses
- Why Do Downhole Tools Fail?
- What Is Lost Circulation in Drilling? – Causes and Severity
- What Causes Stuck Pipe? – Mechanisms and First Actions
Downhole Tools & Bits
- Drilling Jars – How Hydraulic and Mechanical Jars Work
- Bottomhole Assembly Design – How Drillers Build a BHA
- What Is a PDC Bit?
- Drill Collars – What They Do in the Drill String
- Drill String Stabilizers – Types and Placement
- Drill String Components – Pipe, Collars, HWDP and the BHA
- What Are Downhole Tools? – Types and What Each One Does
- Drill Bit Types – Roller Cone, PDC and Diamond Bits Compared
- Heavyweight Drill Pipe – What HWDP Is Used For
- How Does a Tricone Bit Work?
- Crossover, Float and Shock Subs – What Each Sub Does
- Underreamers and Hole Openers – Enlarging the Hole
Offshore Drilling
- Subsea Production Systems – Trees, Manifolds and Umbilicals
- Onshore vs. Offshore Drilling – Costs, Risks and Rigs
- Jackup Rigs – How They Stand on the Seafloor
- Marine Drilling Riser – How It Connects the Rig to the Well
- How Many Oil Rigs Are in the Gulf of Mexico?
- Drillships – How a Ship Drills a Well Miles Below the Sea
- What Is Deepwater Drilling?
- How Do Semisubmersible Rigs Stay in Place?
- What Happens Under an Oil Rig? – Legs, Jackets and Reefs
- How Does Offshore Drilling Work?
- What Is a Subsea Tree?
Hydraulic Fracturing
- When Was Hydraulic Fracturing Invented?
- Why Do Fracking and Horizontal Drilling Work Together?
- Hydraulic Fracturing Equipment – What's on a Frac Spread
- Does Hydraulic Fracturing Increase Permeability? – The Rock Mechanics
- Hydraulic Fracturing Pros and Cons – An Honest Look
- How Long Does It Take to Frack a Well?
- Frac Pumps – Fluid Ends, Power Ends and Electric Fleets
- What Is Hydraulic Fracturing? – Fracking Explained Plainly
- Types of Hydraulic Fracturing – Slickwater, Gel and Hybrid Fracs
- The Hydraulic Fracturing Process – Step by Step on a Frac Site
- What Are Hydraulic Fracturing Fluids Made Of?
Drilling Fluids
- Desander vs. Desilter – What's the Difference?
- What Is Mud Weight? – How Drillers Balance the Well
- Drilling Fluid Circulation – The Mud Path Through a Well
- How Does a Shale Shaker Work?
- Solids Control Equipment – Shakers, Cones and Centrifuges
- Mud Pumps – How Triplex Pumps Move Drilling Fluid
- Mud Gas Separator vs. Vacuum Degasser – Getting Gas Out of Mud
- What Is Mud Logging? – Reading the Well Through Cuttings and Gas
- Decanter Centrifuges – What They Do on a Drilling Rig
- What Is Drilling Mud? – What It Does and Why Rigs Need It