Offshore Oil & Gas Future Development

Heavy Lift Operation.
Lifting of Module to set-up onto MSF (Module Support Frame)

This is a generic Table of Content for Fixed Offshore Structure Installation Procedure. As a field engineer, developing of this kind of procedure is part of my daily job in the office. I hope this section will help you to get the picture how the fixed offshore platform/structure were installed. I’ll try to write in a very simple way just to ensure any layman will get the brief view on how platform installed offshore. I’m not going to write the actual procedure! Just in form of narative.

(All procedures are belong to the COMPANY & if you require a sample, please go through the proper channel)

GENERAL
Introduction
Installation Reference Documentations
Procedures and Documents
Structural Drawing Index for Offshore Installation

PRE-LOADOUT, LOADOUT AND TRANSPORTATION

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Introduction
Pre-Loadout
Platform Pre-Rigging
Loadout and Transportation
General

JACKET INSTALLATION

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Introduction and Key Information

Jacket Installation
General Procedure
Pre-Installation Check List
Jacket Lift
Jacket Upend

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Installation Tolerance

Anchor Pattern for PLATFORM Jacket Installation
Offset Measurement for Jacket Positioning and Setting
PLATFORM Survey Prism’s Socket Aids
PLATFORM Foot Print and Debris Survey
Barge Set Up for PLATFORM Jacket Lift
PLATFORM Jacket Side Lift Rigging Make-up
PLATFORM Jacket Side Lift Pre-rigging and Tiedown Arrangement
Lift Chart for PLATFORM Jacket Side Lift
PLATFORM Jacket Side Lift and Upend Rigging Arrangement
PLATFORM Jacket Upend Rigging Make-up
PLATFORM Jacket Upend Pre-rigging and Tiedown Arrangement
PLATFORM Jacket Lift, Rotation & Upending Sequence

MAIN PILE INSTALLATION

Introduction And Key Information

Pile Driving Hammers

Pile Installation
Barge Set-Up
Pile Installation Sequence
Pile Monitoring
Jacket Leveling Methods

Pile Driving Refusal Criteria

Contingency
Introduction
Jetting/Air Lift Procedures

Shim Plates Welding Criteria

PLATFORM Pile Make-Up
PLATFORM Main Pile Lift Rigging Details Typical
Barge Set-Up for PLATFORM Pile Installation
PLATFORM Main Pile Pick-up Calculation
Lift Chart for PLATFORM Pile Lift-Off
Lift Chart for PLATFORM Main Pile Setting
PLATFORM (60” Æ) Main Pile Driving Schematic
Arrangement to Jack Jacket Up and Jacket Down
Jack Frame/Jack Pad Details

CONDUCTOR INSTALLATION

Introduction And Key Information

Conductor Driving Hammers

Conductor Installation
Barge Set-Up
Conductor Installation Procedure

Conductor Driving Refusal Criteria

Contingency

PLATFORM 26” Ø Conductor Make-Up
PLATFORM Conductor Lift Rigging Details
Barge Set-Up for PLATFORM Conductor Installation
Lift Chart for PLATFORM Conductor Setting
PLATFORM 26” Æ O.D. Conductor Driving Schematic
Conductor Installation and Driving Sequence
External Clamp for 26ӯ Conductor

PLATFORM TOPSIDE INSTALLATION

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Introduction and Key Information

Pre-Lift Check List

Topside Lift and Setting

Post Set-Down Activities

PLATFORM Topside Installation Anchor Pattern
Barge set-up for PLATFORM Topside Installation.
PLATFORM Topside Rigging Arrangement
PLATFORM Topside Lift Pre-rigging and Tiedown Arrangement
Lift Chart for PLATFORM Topside Lift-off and Installation.

PLATFORM APPUTENANCES

Introduction

Platform Appurtenances Installation and Removal Task Sheets

Pile and Conductor Drivability Curves
Extract from PLATFORM Jacket On-bottom Stability Analysis
Extract from PLATFORM Conductor Hang-off Study
Minimum Conductor Bear Clamp Bolts to release ILT
Minimum Weld Requirement for Main Pile P3/P2 to release ILT
Refusal Criteria MENCK Offshore Hammers
Derrick Barge Seastate Limitation for Lifting

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