
Offshore Rigger Course
The Offshore Rigger Course gives you the technical knowledge and practical skills to perform safe, compliant lifting operations in oil, gas, and marine environments. From rigging hardware selection to critical lift execution, every topic is built around real offshore conditions. Get certified-ready and stand out on any platform, rig, or drill ship.
What you will learn:
You will learn how offshore regulatory frameworks govern every lift you perform and how to apply those standards on the job. You will identify, inspect, and reject rigging hardware using industry-accepted criteria. You will calculate sling tensions, determine center of gravity, and select correctly rated equipment for any load. You will build and review formal lift plans for routine, non-routine, and critical lifts. You will coordinate with crane operators using standardized hand signals and radio communication. You will also tackle advanced scenarios including tandem lifts, vessel-to-platform transfers, and subsea deployments.
How you study in practice Offshore Rigger Course
How you practice Offshore Rigger Course
For companies that want to train their team
With Dedika for Business, the course includes exercises and examples tailored to your own business and the way your company needs.
Course content
8 Chapters • 38 LessonsDuration between 4 and 360 hours (you decide)
Chapter 1HideHide detailsSee detailsOffshore Industry Foundations
Offshore Industry Foundations
Lesson 1 • Offshore Environmental Hazards
Identifies environmental conditions unique to offshore operations that affect rigging safety. Builds awareness of wind, sea state, and corrosion as constant risk factors.
Lesson 2 • Offshore Regulatory Framework
Introduces internationally recognized safety standards and competency requirements governing offshore lifting. Provides context for compliance expectations throughout the course.
Lesson 3 • Offshore Facility Types and Functions
Covers fixed platforms, floating production units, jack-ups, and drill ships. Connects facility design to rigging access constraints and load considerations.
Lesson 4 • Industry Roles and Responsibilities
Defines the rigger's role within the offshore crew hierarchy and permit-to-work system. Clarifies accountability lines between riggers, crane operators, and supervisors.
Chapter 2HideHide detailsSee detailsRigging Hardware and Equipment
Rigging Hardware and Equipment
Lesson 1 • Equipment Identification and Marking
Teaches color-coding schemes, traceability markings, and documentation requirements for offshore rigging gear. Ensures students can verify equipment status before use.
Lesson 2 • Synthetic and Chain Slings
Covers polyester, nylon, and high-modulus fiber slings alongside chain grades and link profiles. Addresses offshore suitability, UV degradation, and chemical exposure risks.
Lesson 3 • Shackles, Hooks, and Connectors
Details bow, dee, and safety shackles, along with swivel hooks and master links. Emphasizes correct pin orientation, mousing, and working load limit markings.
Lesson 4 • Wire Rope Construction and Grades
Explains strand lay, core types, and grade classifications that determine wire rope strength. Connects construction choices to offshore corrosion resistance and flexibility needs.
Lesson 5 • Blocks, Pulleys, and Spreader Beams
Introduces mechanical advantage systems, sheave sizing, and spreader beam configurations. Connects equipment selection to load geometry and crane hook clearance.
Chapter 3HideHide detailsSee detailsPre-Use Inspection and Rejection Criteria
Pre-Use Inspection and Rejection Criteria
Lesson 1 • Inspection Documentation and Reporting
Establishes record-keeping practices for pre-use checks and formal periodic inspections. Connects accurate documentation to regulatory compliance and incident investigation.
Lesson 2 • Sling and Textile Inspection
Covers cuts, abrasion, heat damage, and chemical degradation indicators on synthetic slings. Links visible defects to structural capacity loss and rejection decisions.
Lesson 3 • Wire Rope Inspection Techniques
Teaches visual and tactile inspection methods for broken wires, kinks, and corrosion. Establishes discard criteria based on wire loss per rope lay length.
Lesson 4 • Hardware and Connector Inspection
Identifies deformation, cracks, wear, and corrosion on shackles, hooks, and links. Teaches go/no-go gauge use and thread condition assessment.
Chapter 4HideHide detailsSee detailsLoad Calculations and Rigging Mathematics
Load Calculations and Rigging Mathematics
Lesson 1 • Working Load Limit and Safety Factors
Defines working load limit, minimum breaking load, and design factor relationships. Applies these concepts to select correctly rated slings and hardware for calculated tensions.
Lesson 2 • Sling Angle and Tension Calculations
Explains how sling angle affects tension using trigonometric ratios and load angle factors. Students calculate sling leg tensions for two- and four-leg configurations.
Lesson 3 • Rigging Arrangement Sketching
Develops the ability to produce clear rigging sketches showing dimensions, angles, and component ratings. Sketches serve as communication tools and lift plan inputs.
Lesson 4 • Center of Gravity Determination
Teaches graphical and calculation methods to locate the center of gravity of regular and irregular loads. Connects COG position to lift point placement and load stability.
Lesson 5 • Weight Estimation and Load Data
Covers methods for obtaining load weight from drawings, data plates, and volume calculations. Establishes the importance of accurate weight data as the basis for all rigging decisions.
Chapter 5HideHide detailsSee detailsKnots, Hitches, and Slinging Techniques
Knots, Hitches, and Slinging Techniques
Lesson 1 • Multi-Leg Sling Configurations
Covers two-, three-, and four-leg bridle arrangements for balanced and unbalanced loads. Addresses load sharing assumptions and the risk of unequal leg loading.
Lesson 2 • Vertical, Choker, and Basket Hitches
Teaches the three primary sling hitches, their WLL adjustments, and appropriate applications. Connects hitch selection to load shape, surface, and required control.
Lesson 3 • Tubular and Pipe Bundle Slinging
Covers offshore-specific techniques for slinging tubulars, pipe bundles, and drill string components. Addresses rolling risk, end cap protection, and bundle integrity.
Lesson 4 • Fundamental Knots and Terminations
Covers eye splices, mechanical terminations, and essential knots used in offshore rigging. Emphasizes strength retention and correct dressing of each termination.
Lesson 5 • Slinging Irregular and Fragile Loads
Addresses padding, softeners, and custom rigging solutions for loads with sharp edges or delicate surfaces. Builds judgment for non-standard load presentations.
Chapter 6HideHide detailsSee detailsLift Planning and Risk Assessment
Lift Planning and Risk Assessment
Lesson 1 • Lift Plan Components and Format
Covers the mandatory elements of a compliant lift plan including load data, rigging arrangement, and crane capacity verification. Teaches plan layout and review workflow.
Lesson 2 • Hazard Identification for Lifting
Applies structured hazard identification to lifting tasks, covering dropped objects, struck-by, and structural overload risks. Builds systematic thinking before every lift.
Lesson 3 • Toolbox Talks and Pre-Lift Briefings
Develops skills for delivering effective pre-lift briefings that communicate the plan, roles, and stop-work authority. Connects briefing quality to team situational awareness.
Lesson 4 • Lift Classification Systems
Explains routine, non-routine, and critical lift classifications and the planning requirements each triggers. Connects classification to approval authority and documentation depth.
Lesson 5 • Risk Assessment and Control Measures
Teaches likelihood-consequence risk matrices and the hierarchy of controls applied to lifting hazards. Produces actionable control measures for identified risks.
Chapter 7HideHide detailsSee detailsOffshore Crane Operations and Signaling
Offshore Crane Operations and Signaling
Lesson 1 • Exclusion Zones and Load Path Control
Establishes principles for defining exclusion zones and controlling load swing over personnel and equipment. Connects tag line use to load path management.
Lesson 2 • Standardized Hand Signals
Teaches the full set of internationally recognized crane hand signals for all lift movements. Emphasizes clarity, positioning, and maintaining visual contact with the operator.
Lesson 3 • Radio Communication Protocols
Covers radio check procedures, lift-specific terminology, and communication discipline during lifts. Addresses radio failure contingency and handover between banksmen.
Lesson 4 • Lift Sequence Execution
Walks through the complete lift sequence from pre-lift checks to final set-down and unhooking. Builds procedural discipline and situational awareness throughout the lift.
Lesson 5 • Offshore Crane Types and Capabilities
Introduces pedestal, knuckle-boom, and deck cranes common on offshore facilities. Connects crane geometry and rated capacity charts to rigger responsibilities.
Chapter 8HideHide detailsSee detailsAdvanced Offshore Rigging Operations
Advanced Offshore Rigging Operations
Lesson 1 • Tandem and Tailing Crane Lifts
Covers load sharing calculations, communication protocols, and synchronization requirements for two-crane lifts. Addresses tailing crane use during upending operations.
Lesson 2 • Subsea and Below-Water Rigging
Introduces rigging considerations for equipment lowered through the splash zone and into subsea environments. Covers buoyancy effects, hydrostatic pressure, and wet rigging inspection.
Lesson 3 • Heavy and Critical Lift Execution
Applies critical lift planning to execution, covering pre-lift meetings, hold points, and real-time monitoring. Develops decision-making under pressure for high-consequence scenarios.
Lesson 4 • Night and Restricted Visibility Lifts
Covers lighting requirements, signal visibility adaptations, and additional controls for lifts in darkness or fog. Connects visibility limitations to enhanced communication discipline.
Lesson 5 • Vessel-to-Platform Cargo Transfers
Addresses the dynamic load effects of vessel motion during supply boat lifts and the use of motion-compensated rigging. Covers cargo net and basket rigging for deck cargo.
Your valid completion certificate
This course is for you:
Deck hands: looking to formalize skills and move into a rigger role.
Maintenance technicians: needing lifting competency to handle heavy equipment safely.
Construction workers: transitioning from onshore sites to offshore project contracts.
Crane banksmen: wanting deeper rigging knowledge to expand their responsibilities.
Military veterans: applying logistics and equipment handling experience to the energy sector.
Career changers: drawn to offshore work and building credentials from the ground up.
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