This essential new publication provides information and guidance on the safe management of the interface between offshore terminals and offtake tankers, focussing on F(P)SO and SPM buoy terminals and conventional and DP tankers. It will be of use to tanker technical operators, terminal operators, tanker-based personnel, terminal-based personnel, offshore project development teams and regulatory officials.

This publication updates and supersedes the following OCIMF publications:

• Offshore Loading Safety Guidelines with Special Relevance to Harsh Weather Zones.

• Tandem Mooring and Offloading Guidelines for Conventional Tankers at F(P)SO Facilities.

• Recommendations for Equipment Employed in the Bow Mooring of Conventional Tankers at Single Point Moorings.

Contents

Purpose and scope

Contents

Glossary

Abbreviations

Bibliography    

 

Section one

Applicable codes and standards

Offshore terminals used for cargo transfer

Offtake tankers

 

Section two

F(P)SO subsea mooring and cargo transfer philosophy

Definition and application

Operating environments

F(P)SO subsea mooring configurations

F(P)SO location relative to other structures

Basis of Design and cargo transfer philosophy development

 

Section three

Offshore terminal mooring configuration and equipment

Introduction

Mooring system design

Using simulation of motions and forces to assess likely hawser loads

Single and dual hawser mooring systems

Mooring system equipment

Section four

Offshore terminal cargo transfer configuration and equipment

Configuration

Cargo pumping system

Custody transfer system

Manifold

Hose flushing configurations

Cargo hoses and equipment

Quick release couplings

Cargo hose end fittings

Overpressure and surge protection

Cargo containment

Lifting and other equipment

Terminal interface for offtake tanker surge prevention and overpressure protection

Terminal interface for offtake tanker equipment maintenance and repair

 

Section five

Offtake tanker mooring and cargo transfer equipment and configuration

All offtake tankers

Offtake tanker technical operator responsibilities

Conventional tankers

Bow loading tankers

Section six

Station keeping

Conventional tankers

Station keeping using tugs

Mooring layout for tug escort and pull-back, and aft mooring deck design

Stern mooring winch configuration

Disconnection of towline

DP systems

 

Section seven

Personnel transfer facilities

General

Support vessel transfer

Basket transfer

Helicopter transfer

Other information

 

Section eight

Conventional tanker operations

Introduction

Night operations

Competence of offshore operations personnel

Communication requirements for operations

Terminal operational factors

Conventional tanker approach to terminals

Pre-arrival preparations

Pre-mooring preparations

Mooring operations

Pre-transfer conference

Cargo hose connection

Station keeping management

Cargo handling

Disconnection and unmooring

Manning and watch standing

Environmental limitations for cargo transfer operations

Requirements for support vessels

Mooring and line handling

Cargo hose handling

Tug assistance overview

Offshore terminal: organisation and responsibilities

 

Section nine

DP bow loading tanker operations

General

Safety critical elements

Operational safety

Training and competence of offshore operations personnel

F(P)SO operational factors

Approach to terminals

Pre-transfer conference

Station keeping operations

Cargo handling

Disconnection and unmooring

Manning and watch standing

Requirements for support vessels

Use of Tanker Assist Vessels at offshore terminals

Offshore terminal: organisation and responsibilities

 

Section ten

Risk management

General

Offshore cargo transfer operations: general

Hazards and effects management process

Offshore terminal to conventional tanker cargo transfer hazard identification

Risk assessment

Risk control

Mitigated risk assessment

Recovery measures

Primary field risk management methodology: field operator and offtake

tanker technical operator interface

 

Section eleven

Emergency and contingency planning

Emergency scenarios

Emergency towing and standby vessel specifications

 

Appendices

Appendix A: Types of offshore terminals

A1 General

A2 Surface F(P)SOs

A3 Surface Single Point Mooring systems

A4 Sub-surface loading systems

A5 Offshore terminals for use in ice

A6 Dynamically Positioned Loading Terminal

 

 

Appendix B: Recommendations for DP bow loading tanker training and experience

B1 DP offtake tanker training: general

B2 Offshore loading training

B3 Emergency tow training exercises

 

Appendix C: Assurance processes for DP bow loading tankers

C1 Purpose

C2 Background

C3 Acceptance of new offshore terminals and new offtake tankers intended to be

regularly used in the field (primary and secondary pool tankers)

C4 Ongoing acceptance of regularly used offtake tankers

(primary or secondary pool tankers)

C5 One-off acceptance of previously unapproved alternative tankers at short notice

 

Appendix D: Tanker Assist Vessel for DP bow loading operations

D1 Overview

D2 Equipment requirements

D3 Tanker Assist Vessel operations

 

Appendix E: Examples of conventional tanker–terminal information exchanges

E1 Pre-mooring checklist (Mooring Master and conventional tanker Master exchange)

E2 Pre-cargo transfer conference checklist

E3 Pre-departure checklist

E4 Watchkeeper SPM position reporting guide

Appendix F: DP bow loading operational checklists

F1 Example of DP bow loading tanker and terminal operations checklists

F2 Example offshore terminal checklists

F3 Example DP bow loading tanker checklists

Title: Guidelines for Offshore Tanker Operations
Number of Volumes: 1
Edition: 1st Ed 2018
Number of Pages: 250
Published Date: September 2018
Binding Format: Hardback
Author: Oil Companies International Marine Forum