Oil Tanker operation : Procedure and basic guidance The operation of modern oil tankers involve numerous complexities and careful consideration will need to be made for various shipboard activities. Our site is a quick guide to finding tanker vessel operation related information. The procedures explained here are only indicative, not exhaustive in nature and one must always be guided by practices of good seamanship. How to ensure safe working atmosphere onboard oil tankers The basic procedure - Restriction of Smoking, other Burning activities and Naked Lights The basic procedure of ship to ship transfer For dealing with Unforeseen Emergencies, such events can be contained and their effects minimized by preparing the ship’s crew through a system of drills Pumproom inspection procedure for oil tanker A pump room contains the largest concentration of cargo pipelines of any space within the ship and leakage of a volatile product from any part of this system could lead to the rapid generation of a flammable or toxic atmosphere How to ensure safe working area onboard oil tankers Before work, the conditions of working area, such as the density of inflammable gas and fire, shall be positively managed, and the work shall be started after necessary safety of the work is confirmed Tanker operation : Matters That Require Attention At Sea Maintenance of Vent Line System, Cautions about Sparks from Funnel, Avoidance of Thunder Storms, Ballasting and Cargo Oil Transfer Operations Tanker operation: Inert gas system The oxygen content of the Inert Gas supplied to cargo tanks should be 5% or less. However, it is to be noted that too less content of oxygen in the IG would introduce other impurities into the cargo tanks Safety preparation for oil tanker prior entering freezing area The Master shall ensure that the appropriate measures have been taken to prevent damage to Vessel, Machinery, Pipelines and Equipment prior entry into areas with Freezing Conditions Daily soundings of tanks and bilges Bilge (Hold, Engine Room, Cofferdam, Void space, Chain Locker, Emergency Fire Pump Room, Bow Thruster Room, etc.),Ballast Water Tanks , Fresh Water Tanks Oil pollution control Equipment For Oil pollution Control, Equipment for Oil Pollution Mitigation, Guidelines For Prevention Of Oil Pollution Mitigation, Action by Duty Officer, Plugging Deck Scupper Plugs Gas freeing procedure onboard oil tanker It is generally recognized that Tank cleaning and Gas freeing is the most hazardous period of tanker operations. This is true whether Washing for clean ballast tanks, Gas freeing for entry, or Gas freeing for Hot work. Oil handling procedure Bunkering Operation, Measures during Extreme Weather, Restrictions on Use of Fire, smoking, and other General Precautions to the Crew General safety measures against oil pollution accident Working system and preparation , Planning for Cargo Oil Operations ,Pre-safety meeting , Effective Communication ,Promote techniques of Hazard Prediction Training, Preparation of Watch Schedule & PIC of Oil Transfer Operations, Have a complete meeting beforehand with terminal ,Cargo Oil Transfer Check Lists ,Ship / Shore Safety Checklist ,Pre Arrival Checks ,Check Operational Conditions and Training of Crew Preparations For Oil Loading Preparation of the Cargo Plan, Preparing of Ballast Pumps,Cargo Oil Transfer Check Lists, Hose Connection,Display of warning notices and signs, Cargo Oil Transfer Meetings with Terminal representative,Dry Survey / OBQ survey,Lining up Pipelines and Valves,Precautions for Loading Heated Cargo, Personnel arrangement Tanker Standard Equipment Of Prevention Of Oil Spillage Cargo Tank Level Measuring System and Level Alarm System, Emergency Hydraulic Hand Pump, “Software”/Guidelines For Prevention Of Oil Spillage ,Operation Guidelines for Cargo / Ballast valves, Prevent Erroneous Operation of Valves, Valve Handling with Avoiding Liquid Hammer, Securing Indication for Closed Valves Loading operation onboard oil tankers Line up of the Vent lines, Safety Confirmations and Clearance,Leakage Monitoring System ,Cargo Loading Rates , De-Ballasting of Segregated Ballast, Preparation for Topping Off , Guidelines For Toxic Gases Hazards HYDROCARBON VAPORS Characteristic ,Toxic Hazards of H.C. Vapors , HYDROGEN SULFIDE (H2S), H2S Gas Concentration, Precautions for Hydrogen Sulfide (H2S), Health Concerns in connection with Benzene, Health Concerns of Inert Gas, Oxygen-deficient atmosphere Crude oil washing procedure Supervision Of Crude Oil Washing (COW) Operations, Discharging Strategy ,Advance Notice In Port ,Safety Measures For Crude Oil Washing Operations , Confirming Atmosphere in Tanks to be Crude Oil Washed, Pressure Test Standard Procedures for Tank Cleaning, Purging and Gas free Operation Gas-Freeing for Cargo Tank entry ,Safety Precautions ,Non Flammable Atmosphere , Atmosphere Control during Tank Cleaning Operations ,Purging with Inert Gas (IG),Forced Air Ventilation Matters that require attention while loading and discharging oil and ballast water Control Of Discharge Of Oily Mixture Originating From Cargo Oil From Tankers & Restriction of carriage of oil and water ballast Tanker vessel : Operations during laden voyage Water And Cargo Oil Measurement, Vapor Control, Topping Up Operation, Cargo Oil Heating, Line Pressure Test General Precautions Confirming Working Area Onboard Oil Tanker Confirming Working Area, Anti-Electrostatic Clothes and Shoes for Ship’s crew, Permission of Hot Work ,Use of Explosion-proof Type Electric Torch equipment, Use of Hand Tools, Prohibition of Carrying Unnecessary Tools, Attention to Shock Sparks by Lighter Metals, handling of Aluminum Products Preparation for discharge onboard oil tankers Preparation of the Cargo Plan, Cargo Equipment, Cargo Oil Transfer Check Lists, Display of Warning Notices and Signs, Hose Connection, Cargo Oil Transfer Meetings with Terminal representative, Ullage measurement and Cargo Quantity Calculation, Lining up Pipelines and Valves Oil Cargo Discharging Operations Supply of I.G to cargo tanks being discharged, Line up of the IGS, Safety Confirmations and Clearance, Deck Watch and Personnel Arrangement Tanker operation : Personnel for Cargo Handling Watch Schedule, Supervision Of Operations, Personnel Arrangement During Cargo Operations Measures For Handling Cargo Oil Having A Flash Point Exceeding 60c Ensure that sufficient reliable evidence available that the flash point of the cargo oil is above 61° C and the temperature of the cargo oil does not exceed 5° C less than the flash point. Tanker operation : Disposal for Spilled Oil and Prevention for Secondary Disaster Tanker Standard Equipment For Disposal Of Spilled Oil & Secondary Disaster Prevention Slop Dump (Surface) Valve Arrangement (Emergency drains) Tanker operation : Inspection Of Cargo Work Equipment And Machinery The Chief Engineer and Chief Officer shall jointly be responsible for the inspection and maintenance of the cargo oil transfer equipment and machinery before entering port Tanker operation : Measures For Pump room entry Entry Permit into Enclosed Space ,Atmosphere Control, Effective communication ,Gas Monitoring , Maintenance Work in Pump Room NOTE: Shipsbusiness.com is merely an informational site about various aspects of ships operation,maintenance and onboard procedure. User feedback is important to update our database.For any comments or suggestions please contact us ''Support[at]shipsbusiness.com'' Other Info Pages Home Our home page Site Map Page listing for this site. 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