Tanker Fleet // Oil Tankers & Cargo Handling
Oil Tanker Operations: Practical Handbook on Tankship Management & Cargo Safety
A comprehensive practical guide to the operational cycles of crude oil carriers and product tankers. Features detailed coverage of loading and discharging sequences, Inert Gas Systems (IGS), Crude Oil Washing (COW), explosive atmosphere monitoring (LEL/UEL), terminal interfaces, and marine pollution containment.
About the Manual: From Fundamental Principles to ISGOTT Standards
Operating an oil tanker is a demanding industrial procedure that calls for strict procedural discipline, an accurate understanding of hydrocarbon physics and chemistry, and unwavering adherence to international safety protocols. Inadequate management of inert gas pressure, miscalculated transfer rates, or inaccurate gas-measuring readings can lead to catastrophic shipboard fires, structural overpressurization, or environmental disasters.
“Oil Tanker Operations” provides an exhaustive, structured knowledge base for senior and junior deck officers serving on liquid bulk vessels. The guide begins with an evolutionary overview of oil tanker design before delving into the technical mechanics of modern shipboard hardware: cargo pumprooms, hydraulic control systems, high-velocity pressure/vacuum relief valves, closed-sampling apparatus, and Emergency Shutdown (ESD) arrangements. The volume is richly illustrated with piping layouts, flammability phase diagrams, and operational engineering blueprints.
To prepare for vetting audits and terminal surveys, deck officers should also refer to our MARPOL Annex II Calculator, our regulatory overview on MARPOL Convention Annexes, and the practical bunker management workflows in the Bunkering Rate Calculator.
Core Operational Modules & Engineering Systems:
1. Cargo Pumping, Inerting & Atmosphere Control:
- Cargo Pumps & Piping Lines: Centrifugal and screw pump characteristics, submerged hydraulically driven pumps, stripping systems, and priming eductors.
- Inert Gas Systems (IGS): Deck Water Seal arrangements, flue gas scrubbers, oxygen analyzers, PV valves, and maintaining tank oxygen levels strictly below 8% by volume (5% in supply).
- Atmosphere Testing: Lower and Upper Explosive Limit (LEL/UEL) monitoring, hydrocarbon gas measurement in nitrogen atmospheres, purging, and gas-freeing for entry.
- Tank Cleaning & Washing: Seawater and freshwater washing procedures, Crude Oil Washing (COW) shadow diagrams, and slop retention under MARPOL.
2. Custody Transfer, Calculations & Safety:
- Ullage, Temperature & Interface Gauging: Operating portable electronic gauging tapes (UTI devices), determining oil/water interface lines, and representative cargo sampling.
- Cargo Quantity Calculations: Converting observed volumes to standard conditions (TOV, GOV, GSV) using our online ASTM Table 54B Calculator.
- Ship/Shore Safety Interface: Joint safety checklists, maximum loading and topping-off rates, manifold pressure surge containment, and laytime/demurrage management using the Ship Steaming Time Calculator.
- Environmental & Vetting Compliance: Aligning operational standards with OCIMF SIRE regimes and inspecting ballast exchange via the Ballast Water Record Book Assistant.
Download “Oil Tanker Operations”
Access the complete digital PDF handbook with technical schematics, flammability diagrams, and practical checklists:
Tanker Practice
Oil Tanker Operations