Jack-Up Rig Safe Handling Procedure

Purpose

Jack-up rig safe handling is a collection of case study of various Jack Up rigs incidents and punch through conditions.

• To analyze past incidents involving jackup rigs to understand key lessons.
• To enhance the knowledge and skills of Barge Masters in managing stability, emergency procedures, and rig moves.
• To improve safe operational practices, decision-making, and risk mitigation.

Target Audience

 Barge Masters / Engineers / Supervisors / Marine Planners, Offshore Installation Managers, and relevant offshore personnel.

Course Content – jack-up rig safe handling

Section 1: Stability and Incident Analysis

• Stability Calculations: Understanding common errors in stability calculations and their consequences.
• Daily Loading Calculation: Monitoring daily loads and their impact on operational stability.
• Free Surface Effect: Identifying and mitigating risks associated with the free surface effect.
• Environmental Conditions: Assessing how weather, wave dynamics, Tide and other environmental factors affect rig stability.
• Damage Control Procedures: Implementation of effective damage control and counter-flooding methods.
• Watertight Compartments: Proper management and maintenance of watertight compartments.
• Use of Pumping Systems: Strategic use of pumping systems for stability correction.

Section 2: General Lessons Learned

• Collision Regulations: Best practices for adhering to collision regulations in various scenarios.
• Navigational Aids: Effective use of electronic navigation tools appropriate to Mobile Offshore Units (MOUs).
• Towing Procedures: Comprehensive towing techniques, including safe recovery of tow.
• Heavy Weather Preparation: Best practices for securing the rig and crew safety during adverse weather conditions.
• Manoeuvring and Positioning: Insights into strategic maneuvering and Dynamic Positioning (SPJU) methods.
• Emergency Anchor Handling: Protocols for emergency anchor handling procedures.

Section 3: Emergency Jacking Operations

• Jacking with Pinion Failures: Strategies for managing jacking operations when not all pinions are responding.
• Jacking Motors Failure: Emergency plans and maintenance checks to handle jacking motor malfunctions.

Section 4: Penetration and Leg Pulling Operations

• Penetration Calculations: Guidelines for accurate penetration depth calculations to prevent punch through.
• Safe Spud Can Removal: Techniques for safely removing spud cans from the seabed.
• Soft and Hard Pin Issues: Managing soft and hard pin situations effectively.
• Off-Location Emergencies: Approaches and response plans for off-location incidents.

Section 5: Rig Move Compliance and Communication

• Non-Compliance Risks: Examining the consequences of not following rig move procedures.
• Importance of MOM (Marine Operation Manual): Documenting and following up on action items for enhanced operational safety.
• Tow Boats Handling: Effective coordination and safe handling of tow boats.
• Communication Protocols: Ensuring clear and reliable communication with Rig Movers and Tow Boat Masters.