piece small, not so small at all!

2

• Piece Small, Not so Small at All!

TIM ELEY – Business Developer

www.lbo.no

3we extend the life of your investments

From Transmission Lines to Offshore Services

Prezioso Linjebygg was a

transmission lines contractor,

established in Molde in 1933

Prezioso Linjebygg took up

offshore activities in 1991,

which was organised into a

separate company (LBO) in

2000

Today, Prezioso Linjebygg is a

national & international highly

specialized offshore service

provider


Frigg DP2 – UK North Sea


ConocoPhillips Norway, Eldfisk field


Frigg DP2 – Buoyancy collars


Assistance to Saipem UK

PZL scope of work 1:

Prepare top of MSF for lifting

1. Remove necessary obstacles

2. Remove navigation aids

3. Install scaffolding around top of legs

4. Any work needed for installation of lifting points and safe lifting



LBO scope of work 2:

Reinforce weld between Jacket and MSF

1. Remove necessary obstacles

2. Install coffer-dam

3. Reinforce MSF weld

4. Remove coffer-dam


Topsides Diamond Wire Cutting - ATEX

• Design

• Engineering

• Fabrication and

Construction

• Testing

• Execution

ATEX - Zone 1 Diamond Wire Topside Cutting Tool

Topside (ATEX) diamond wire cutting of exhaust stacks on Eldfisk Ester, 2013


Decommissioning/modification

Exhaust ducting change out

• Eldfisk Ester

• Change out 2013


Ekofisk structural reinforcements

Ekofisk and Eldfisk jackets

Installation in 2008

Riser suppors Braces


ConocoPhillips Norway, Ekofisk Decom



• Ekofisk C Riser Bumper

• Design & Engineering

• Procurement & Construction

• Installation 2007 - 10 Tonnes



Riser bumper

• Ekofisk B

• Protection of 8in gas riser

• 15 tonnes

• Installation 2007


Steel structure installation

• Study

• Design / engineering

• Fabrication

• Installation

• Commissioning


Decom – Piece Small

Ekofisk landing removal

• Diamonwire cutting


Lifting and Rigging Methods



Wave protection

Eldfisk FTP

Installation 2009

5 items: 17 tonnes total


Special lifting - special structures

•Modular parts

•Self supported installation

•Offshore certified

•Light aluminum

•Lift up to 100 tonnes


Special lifting equipment


Exchange of waste heat recovery units – Statoil

Design, fabrication and installation of skidding and lifting

arrangement for exchange of WHRU

Alternativ

rømningsvei

ALTERNATIVE RØMNINGSVEIER

Alternativ

rømningsvei

ALTERNATIVE RØMNINGSVEIER


Exchange of waste heat recovery units – Shell

Exchange of WHRU by use of platform crane


Decommissioning – Drilling Derrick

Remove the vent stack in pieces.Avoid need for major support vessels.


Decommissioning – Flare Boom

Remove without use of heavy lift vessel. Pieces transported to deck or to moored barge?


Decommissioning – Flare Boom


Boat landing removal – Offshore UK

Removed in summer 2011

Weight: 16 T

Cut in 3 sections

Lifted out of water and cross-hauled to deck crane


Boat landing removal – Piece Small

• Section 2 ~ 5300 kg

• 2 wire saw configurations

• 7 cuts (3 braces)

• Section 3 ~ 5100 kg

• 2 wire saw configurations

• 2 cuts (1 braces)



Diamond wire saw:

Remote operated frame

Hydraulic wire engine

Locking clamp mechanism



• Subsea camera

• Cold cutting (ATEX approved)

• Multiple configurations:

Pipe dimensions: 12in – 36in

Possible to modify for other sizes



Removed in summer 2011

Weight: 16 T

Cut in 3 sections

Lifted out of water and cross-hauled to deck crane


Platform crane replacement


Steel structure installation

• Pre-study

• Development of equipment

• Design

• Testing

• Execution


Valhall Decommissioning

Boat Landing Removal

Valhall

Removal 2000

78 tonnes total


Boat Fenders Removal - Valhall - Piece Medium

Due to subsidence of the seabed PZL removed two boat

fenders on Valhall.


Decommissioning - Piece Small

To Decommission this platform - you need ..


Decommissioning - Piece Small - Strategy

1. Decommissioning Engineering Contractor - onshore / offshore.Pre-Engineering, lift planning, cutting, scheduling. LBO - Linjebygg Offshore

2. Lift Contractor.

3. Onshore Disposal Facility / Recycling / Re-use.Veolia Environmental Services


1. Decommissioning - Engineering onshore/offshore Contractor


Allseas - Peter Schelte

Saipem - 7000

Heerema - Thialf

Seaway Heavy Lifting

Boskalis

Scaldis

Fred Olsen

Seajacks

Seafox

Geosea

2. Decommissioning - Lifting Contractor(s)


3. Decommissioning - Onshore Disposal Base Contractor

• Project design in accordance with relevant legislation• Engineering• Project Management• Load-in Operations• Decontamination & Deconstruction• Materials handling & Waste Management


Some representative clients

piece small, not so small at all!

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