Drilling Operator Course

Lesson 1 • The Drilling Industry Overview

Covers the purpose of drilling in oil, gas, and geothermal sectors and the operator's role within it. Establishes context for all subsequent technical content.

Lesson 2 • Drilling Team Roles and Communication

Defines crew hierarchy from driller to roughneck and establishes communication protocols. Effective teamwork is foundational to safe rig operations.

Lesson 3 • Rig Components and Systems

Identifies major rig systems including hoisting, rotating, and circulating equipment. Provides the mechanical vocabulary needed for all operational chapters.

Lesson 1 • Fluid Properties and Testing

Covers density, viscosity, filtration, and pH measurement using standard field instruments. Accurate testing enables operators to maintain fluid within design specifications.

Lesson 2 • Hydraulics and Pump Management

Applies hydraulic principles to optimise pump pressure, flow rate, and bit nozzle selection. Proper hydraulics maximise hole cleaning and drilling efficiency.

Lesson 3 • Functions of Drilling Fluids

Explains how drilling fluids control pressure, cool the bit, and transport cuttings. Understanding these functions guides all fluid selection decisions.

Lesson 4 • Fluid Types and Composition

Compares water-based, oil-based, and synthetic fluid systems and their chemical components. Fluid type selection directly affects formation compatibility and environmental compliance.

Lesson 1 • Bit Optimisation and Dull Grading

Applies weight-on-bit, RPM, and hydraulics to optimise bit performance and evaluates wear using the IADC dull grading system. Dull grading informs future bit selection.

Lesson 2 • Drill Bit Types and Selection

Compares roller cone, PDC, and diamond bits across formation types and drilling parameters. Correct bit selection is the primary driver of rate of penetration.

Lesson 3 • Bottom-Hole Assembly Design

Covers BHA configuration for vertical, directional, and horizontal wells including stabiliser placement. BHA design directly controls wellbore trajectory and string stability.

Lesson 1 • Well Kill Methods

Teaches Driller's Method and Wait-and-Weight Method for circulating a kick safely out of the well. Method selection depends on kick size, fluid type, and rig capability.

Lesson 2 • Formation Pressure and Pore Pressure

Explains pore pressure, fracture gradient, and the drilling window concept. These pressure relationships underpin every well control decision made at the rig.

Lesson 3 • Kick Detection and Warning Signs

Identifies primary kick indicators including pit gain, flow increase, and pump pressure changes. Early detection is the most critical factor in preventing blowouts.

Lesson 4 • Shut-In Procedures

Covers hard and soft shut-in methods for rotary and managed pressure drilling scenarios. Correct shut-in preserves wellbore integrity and enables accurate pressure readings.

Lesson 1 • Cement Evaluation and Remediation

Introduces cement bond logs, ultrasonic tools, and squeeze cementing for remedial work. Evaluation results guide decisions on well integrity and production readiness.

Lesson 2 • Running Casing Procedures

Details the sequence for picking up, stabbing, and running casing to target depth safely. Procedural compliance prevents casing damage and stuck pipe incidents.

Lesson 3 • Cement Slurry Design

Explains cement types, additives, and slurry property testing for various well conditions. Slurry design determines zonal isolation quality and long-term well integrity.

Lesson 4 • Primary Cementing Operations

Covers displacement calculations, plug placement, and bump-plug procedures for primary cement jobs. Correct execution achieves full annular coverage and zonal isolation.

Lesson 1 • Trajectory Monitoring and Correction

Applies minimum curvature calculations and real-time MWD data to monitor and correct well path. Timely corrections minimise tortuosity and reduce drilling costs.

Lesson 2 • Directional Well Planning

Covers well profile types, target coordinates, and anti-collision planning for directional wells. Planning accuracy determines whether the well reaches its geological target safely.

Lesson 3 • Survey Instruments and Methods

Describes magnetic and gyroscopic survey tools and their accuracy limitations. Survey data is the primary input for trajectory monitoring and correction decisions.

Lesson 1 • Stuck Pipe Freeing Techniques

Covers jarring, spotting fluids, back-reaming, and fishing as progressive stuck pipe remedies. Technique selection depends on stuck point depth and pipe condition.

Lesson 2 • Torque, Drag, and Vibration Issues

Diagnoses excessive torque, drag, and downhole vibration using surface measurements and modelling. Reducing these forces extends bit and string life whilst improving ROP.

Lesson 3 • Stuck Pipe Causes and Prevention

Identifies differential sticking, mechanical sticking, and key seating as primary stuck pipe mechanisms. Prevention strategies reduce the most costly source of non-productive time.

Lesson 4 • Lost Circulation Management

Explains seepage, partial, and total lost circulation and the materials used to cure each type. Effective management prevents wellbore instability and fluid cost overruns.

Lesson 1 • Drilling Programme Review and Improvement

Applies after-action review, lessons-learned documentation, and engineering change processes to improve future well programmes. Continuous improvement is the hallmark of high-performance drilling teams.

Lesson 2 • Offset Well Analysis and Planning

Uses offset well data to predict formation tops, pore pressure, and bit performance for new wells. Offset analysis is the primary tool for reducing uncertainty in well planning.

Lesson 3 • Managed Pressure Drilling

Introduces MPD concepts including constant bottomhole pressure, pressurised mud cap, and dual-gradient systems. MPD expands the drilling window in narrow-margin and depleted reservoirs.

Lesson 4 • Drilling Performance Metrics

Defines ROP, cost-per-foot, NPT, and flat-time analysis as key performance indicators. Metrics provide the baseline for identifying and quantifying improvement opportunities.