Rig Moves in Dubai

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Rig Moves in Dubai



Rig Moves

PRACTICAL RISKS OF RIG MOVING Brief Presentation Synopsis

- A Rig move Master’s Perspective-case study
- Pro-active Measures with industry intelligence
- RELOCATION OF A JACK-UP DRILLING UNIT – CASE STUDY ON RIG MOVE
- The intended purpose of the operation was to relocate the jack-up drilling unit from an open sea location to a port for lay-up. The distance was about 300 nm and the season was winter but the port lay in a location where as the tow progressed towards it, the weather would improve due to change in latitude. The unit was refloated and the tow commenced.
- The Problem Starts…….
- The owner instructed the rig mover to order the tugs to make for the new location. The original certificate of Approval (C of A) for the voyage no longer applied and the warranty survey (WS) company advised the owner of this fact.
- Original C of A was for a move classed as “an extended field move”, lower than the now contemplated “ocean move”.
- CONSEQUENCES
- Tow ran into a series of heavy gales, severe strains on the tow gear parted first one then the other towline.
- Suffering structural damage in way of the hull where the legs passed through.
- Began to take green seas on deck which broke the lashings on cargo.
- Equipment broke ventilators and hatches resulting in down flooding, loss of power and pumping ability.
- The barge was now in serious trouble and sinking.
- The crew were removed by helicopter in a remarkable display of seamanship before the unit sank.
- The unit underwriters did not pay the full insured value of the unit due to the negligence of the owner and the warranty survey company.
- Assessment of intact stability criteria
- Assessment on dynamic effects on stability & water impact loads
- Establishing the final distances and criteria for jack-up
- Maneuvering in close proximity of platforms
- Guidance on fatigue of jack-up rigs during towing
- Detection of water ingress in floating condition
- Continuous and better dialogue between weather prediction service providers.
- The starboard leg has punched through. By jacking down the hull on the Port side, the Starboard leg will be able to move within the crater it has made. If binding should occur in the guides of the Port leg then this can be relieved by raising the Starboard leg allowing the weight of the barge on the low side to be taken by buoyancy.
- If the Starboard led is driven down to try and raise the low side, the result will be to force the Port leg hard into its guides thus moving the hull to Port. Because the port leg is restrained, severe bending could occur at or near the mud line.

Team Constellation a highly professional Team Constellation a highly professional Team Constellation a highly professional Team Constellation a highly professional Team Constellation a highly professional Team Constellation a highly professional Team Constellation a highly professional & experienced Master Mariners, Naval Architects, Tanker Masters, Engineers, Consultants, Marine Asset Valuers and a team of Qualified Surveyors with expertise and experience in different areas of marine activities offering round the clock services to the clients in shipping and insurance industry with direct presence at all sea ports in UAE and with offices in Dubai, Abu Dhabi and Fujairah just a call away from these ports. Constellation has international offices in UK and Singapore and associates all over Middle East and UAE, London, Holland, Germany, West Africa, Cape Town, Oman, China, Singapore. Survey, Inspection,investigation Risk and Root Cause Analysis Load Test of Lifting Gears Certification Mrine & Insurance Clam Consultancy Vessel Valuation Dry Cargo Bulk Break Bulk Project Cargo Dry Container Survey Draught Survey Pre-shipment Condition Pre-shipment Condition Pre-discharge Condtion Pre-dischsrge Condition Stuffing Unstuffing Stow Cargo Damage Surey Loading Discharging Survey Taly Cagrgo Container Damage Sampling & Analysis Damage Short Landing Survey Dangerous Cargo Survey Pre-shipment Condition Stowage Plan Preparation Reefer Container Short Landing Investigation Cargo Hold Inspection Truck Inspection Lashing & Securing Certification Pti Inspection Survey Loading off Loading on Board Stowge Supervision Container Condition Survey Supervision Uld Inspection of Hatch Covers Temp Set. Vent Inspection Cargo Hold/hatch Inspection Cargo Land Transportation Stuffing Unstuffing Stow Weighment Witnessing Cargo Damage Investigation Reefer Cargo Damage Survey Sealing/unsealing Short Landing Investigation Reefer Cargo Damage Investigat Bunker Survey Petroleum On Hire/off Hire Rob Survey Vessel Tank Inspetion and Certification On Hire Off Hire Bunker & Condition Survey. Petrolem Prduct Quantify Survey Sampling & Sealing Prduct Loading Dischrging and Sampling Witnessing Sample Lab Analysis. Cargo Contamination Investigation Magnetic Compass Adjustment & Deviation Card Hull & Machinery Damge Survey Sts Operation Ism, Isps and Mlc Audits Project Cargo Transportation Loading discharging Marine Warranty Surveys Project Management & Decommissioning Supervision for Off Shore Structures Rig Moves, Location Approvals and Off Shore Warranty Inspection Prior & During Moves. Heavy Cargo Lifting Plan Review, Preparation of Stowage& Lashing Plan Towing Arrangement Plan and Tow Approvals. Collision Damage Survey, Repair Cost Estimation and Investigation P&i Pre-entry Vessel Conition Surveys Hull & Machinery Conditon Surveys Root Cause Analysis of Maritime Accidents. Issuance of Charterd Engineer Certificate for Export Machinery. Valuation Pre-purchase Conditiion Surveys & Sea Trials Marine Vessel Condition Inspection&valuation Vessel Valuation. Valuation Marine Asset, Machinery& Equipment Constellation Marine is managed by four board members UK, connected with various facets of the marine business like Maritime Law & Marine insurance individually. Constellation Marine Surveyors & Consultants are independent and professional in every of our conduct. take up appointments for ship owner, trader or insurance companies Constellation Marine has registered offices in UK, Singapore and Middle East specializing in Maritime and energy claims, offshore marine warranty inspection, ship and cargo inspections for principals, insurance companies and charterers and P&I Clubs as our main principals instructing us repeatedly global company with branches in Dubai, London, Singapore, Abu Dhabi, Fujairah, Ras Al Khaimah, Bahrain, Kuwait, Qatar, Oman, Yemen Liason offices at Germany, Holland, China, west South Africa.