Tools and methods for pre-installation seabed surveys

www.fugro.com © Fugro 2013

Combined tools and methods for

pre-installation seabed surveys

Klaus Michels

Fugro OSAE GmbH

Fahrenheitstr. 7

D-28359 Bremen

www.fugro.com 2nd International Conference Offshore Cabling ♦ 13 – 15 May 2013 ♦ Bremen

The installation of offshore cables requires a detailed knowledge of

the seabed conditions. Therefore an investigation of the seabed along

the proposed route is regarded as an indispensable prerequisite for

the planning and execution of a cable installation.

The elements of a route survey ideally comprise:

Desk top study

Geophysical and geotechnical survey

Lab testing of seabed samples

Survey report and charts based on an integrated data set

Burial assessment

Specific surveys where required, e.g. UXO, CX/PX, thermal conductivity, environmental etc.

Introduction

www.fugro.com 2nd International Conference Offshore Cabling ♦ 13 – 15 May 2013 ♦ Bremen

Presentation Focus

1. What is the scope of work for an ideal cable route survey?

2. What are the results of a cable route survey?

3. What are the limitations of a cable route survey?

4. How can we make sure that the survey results meet the installation requirements?