tideway offshore solutions - offshore wind … placement, landfalls & outfalls, offshore...

Kathryn Hannis | 23-11-2015

TIDEWAY OFFSHORE SOLUTIONS

GENERAL INFORMATION

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Tideway in a nutshell:

TIDEWAY | GENERAL INFORMATION

Leading world class contractor

In the high precision rock dumping (fall pipe vessel) market

We aim to be

A full service provider for oil & gas pipeline and power cable

installation projects

Our activities

Rock placement, Landfalls & Outfalls, Offshore Dredging,

Power Cable Installation, & Subsea works

ACTIVITIES & EQUIPMENT

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TIDEWAY | ACTIVITIES

Protection & Stabilisation Services

Pipeline / Cable Crossings

Seabed Preparation

Freespan Correction

Platform Scour Protection

Windfarm Scour Protection

Special Applications

Rock placement Landfalls &

Outfalls Offshore Dredging

Cable Installation

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Length 154.6 m. – Breadth 32.2 m. – Draught loaded 7.74 m. - Loading cap. 19,000 t.

Working depth max. 2,000 m. – Cruising speed 15 knots - Class LR DP II, ICE

Length 139 m. – Breadth 32m. – Draught loaded 6.60 m. – Loading capacity 11,500 t.

Cruising speed 12 knots – Class ABS / DP II

Length 162 m. – Breadth 38m. – Draught loaded 6.34 m. – Loading capacity 18,000 t.

Cruising speed 12 knots – Class LR / DP II

TIDEWAY | EQUIPMENT

FPV Flintstone

FPV Rollingstone

FPV Seahorse



Cable Installation

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Cofferdams

Groynes

Pulling Winch & Wire

Wire Lay & Pipe Pull

Nearshore Dredging

Backfilling & Trench Re-instatement

Directional Drilling / Microtunneling



Cable Installation

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Pre-lay Dredging

Post-Lay Burial

Seabed Preparation

Pre-sweeping sandwaves



Cable Installation

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From continent to continent From OWFs to shore Infield cables between WTGs



Cable Installation

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TIDEWAY | EQUIPMENT

New Asset:

MPV Living Stone

(Q1 2017)

Post-lay trencher

CBT1100



Cable Installation

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TIDEWAY | EQUIPMENT



Cable Installation

Length 161 m. – Breadth 32.2m. – Draught loaded 6.5 m. – Loading capacity 10,000 t of cable (2x5,000 t turntables)

Cruising speed 13.4 knots – DP III – 2x600 m3 LNG plant tanks

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TIDEWAY | EQUIPMENT



Cable Installation

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TIDEWAY | EQUIPMENT



Cable Installation

• 2x400kW Electro-Hydraulic power packs

• 1750mm wide heavy duty track gear

• Heavy duty chain cutter system –

o 2.3m trench depth @ 4m MBR

• Rear mounted dual jetting swords –

o 3m trench depth @ 3m MBR

• TSS Dual track cable tracking system

• Capable of simultaneous or post-lay burial survey

PAST EXPERIENCE

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TIDEWAY | PAST EXPERIENCE

Rock Placement Landfalls & Outfalls Offshore Dredging Cable Installation

• DONG Energy /

Gwynt Y Mor OWF

• DONG Energy /

Walney I & II OWF

• DONG / Gunfleet

Sands DEMO

• BP / Claire

Development

• Energy /

Westermostrough

• 100s more…

• BP / Magnus EOR

Project

• PVDSA / Gasoducto

Dragon / Cigma

• Chevron /

Wheatstone

Trunkline Shore Pull

• Gazprom /

Nordstream Project

• Shell / Corrib Field

Development

• Chevron /

Wheatstone Project

• Cardon IV SA / Perla

Early Field

Development

• RWE / Breagh Field

Development

• BritNed Cable

project

• Babbage Project

• GDF Suez / Q13a-A

Development

• Northwind /

Northwind OWF

• C-Power / Thornton

Bank OWF

• Statnett / NorNed

HVDC Cable

Interconnector

Project

CURRENT & FUTURE PROJECTS

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TIDEWAY | CURRENT & FUTURE PROJECTS

Gode Wind 1+2 Race Bank Innogy Nordsee 1 Merkur

•Germany

•DONG Energy /

GeoSea

•Scour protection

around 42 and

55 monopile

foundations

•UK

•DONG Energy

•Scour protection

around 62 of 91

monopile

foundations

•Germany

•Nordsee One /

GeoSea

•Scour protection

for monopile

foundations

•Germany

•Merkur Offshore

/ GeoSea

•Scour protection

for monopile

foundations

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SUB-CONTRACT SERVICES

TIDEWAY | PAST EXPERIENCE

General Mobilisation &

Demobilisation Execution

• Engineering works

• Skilled and semi-

skilled labour

• Engineers

• Inspectors

• Admin

• Accommodation on

shore

• Office space

• Taxi/shuttle services

• Welding shop

• More…

• Port services /

facilities (incl.

agents, bunkering,

etc)

• Diving services

• Small tools /

hardware

• Electrical services

• More...

• Trenching & Burial

• Pull-in works

• Survey

• Route Clearance

• Cable supply /

manufacture

• Testing and

commissioning

• UXO clearance

• HDD

• Rock supply

• Survey

• Conveyor belt

maintenance

• ROV services

• CTVs, multicats,

tugs, barges

• Cable protection

system

• Earth moving

equipment services

• More…

THANK YOU

tideway offshore solutions - offshore wind … placement, landfalls & outfalls, offshore...

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