Installation and extraction of pipeline starter pile

INSTALLATION AND EXTRACTION OF PIPELINE STARTER PILE

In September – October 2024, Allseas successfully utilised the CAPE VLT-80 for the installation and extraction of a pipeline starter pile on the N05-A project in the Dutch North Sea.

Paul van Haestregt, Assistant Project Manager, Allseas: “Allseas selected the CAPE VLT-80 for two key reasons. First, its upending capabilities were essential for our operations. Given the length of the pile and limited deck space, multiple rotations were required. The upending mechanism on the CAPE VLT-80 provided the perfect solution, significantly simplifying our operations.

Second, the collaboration during the tender phase was excellent. CAPE Holland demonstrated a clear understanding of Allseas’ position and showed flexibility in scheduling, which was highly appreciated. Overall, Allseas was very pleased to work with CAPE Holland, and I would gladly recommend them for future projects should the need arise.”

The N05-A project is an offshore gas production platform in the North Sea, situated about 20 km north of the Borkum, Rottumerplaat and Schiermonnikoog islands. Located just 1.5 km from the German border in water depths of around 25 to 30 meters, it is set to become the first platform in the Dutch offshore sector to operate entirely on offshore wind power from the nearby German windpark Riffgat, reducing carbon emissions by 85% over its operational lifetime.

The platform is operated by ONE-Dyas in partnership with Hansa, and Energie Beheer Nederland (EBN). ONE-Dyas will extract natural gas from the N05-A field and surrounding reserves located within both the Dutch and German sections of the North Sea.

Find more project details below or contact Niels van den Heuvel for more information.

Application details

Application
Oil & Gas
Pile type
Pipeline starter pile
Water depth
10-30m
Penetration
12m
Extraction
12m

PILE DETAILS

Pile type
Starter pile
Pile length
28m
Pile weight
32t
Pile wall thickness
31mm
Pile diameter
36inch
No. of piles
1

PROJECT DETAILS

Period
Sept ’24 – Oct ’24
Sea
North Sea
Country
The Netherlands
Location
20 km north of the Borkum, Rottumerplaat
Market
Oil & gas
System/end usage
Offshore gas production platform
Operator or end customer
ONE-Dyas
Installation contractor
Allseas
Type of vessel
Pipe layer
Name of vessel and owner
Lorelay, Allseas
Mode
Dynamic Positioning

Related challenges

challenge

Pile removal

The challenges we’re facing today is our drive to come up with great ideas, solutions and support.

Main Reasons for solution choice

UPENDING, LIFTING, DRIVING IN SINGLE OPERATION

EXTRACTION POSSIBLE

NO NEED FOR GRIPPER OR INSTALLATION FRAME

SELECTED EQUIPMENT

CAPE VLT-80

Equipment configuration
CAPE VLT-80
Eccentric moment
80kgm
Max. line pull
131t

vibro
lifting
technology

Discover how its unique features will uplift your next project; download the vibro lifting technology guide.

GET THE GUIDE

YOU MIGHT BE
INTERESTED IN

Monopile decommissioning

The CAPE VLT has been proven as an ideal way for monopile decommissioning. CAPE Holland has proved this capability on a number of offshore projects.
Read more
Eliminate pile run/drop fall

Eliminate Pile Run/Drop Fall

Sudden and violent free fall of piles during impact pile driving, so called pile run or drop fall, is an increasing concern in the industry. This risk does not only involve monopiles, there are many occasions known where jacket piles have also suffered pile runs in both oil & gas and offshore wind.
Read more