• norsk
    • English
  • English 
    • norsk
    • English
  • Login
View Item 
  •   Home
  • Fakultet for ingeniørvitenskap (IV)
  • Institutt for maskinteknikk og produksjon
  • View Item
  •   Home
  • Fakultet for ingeniørvitenskap (IV)
  • Institutt for maskinteknikk og produksjon
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

SUBSEA RECEIVER STATION FOR COMMUNICATION WITH DOWN WELL SENSORS - Undervanns mottakerstasjon for kommunikasjon med brønnhull sensorer

Fellinghaug, Jarl André
Master thesis
Thumbnail
View/Open
9372_FULLTEXT.pdf (23.59Mb)
9372_ATTACHMENT.zip (101.8Mb)
9372_COVER.pdf (1.203Mb)
URI
http://hdl.handle.net/11250/2400540
Date
2013
Metadata
Show full item record
Collections
  • Institutt for maskinteknikk og produksjon [3255]
Abstract
The scope of this project was to develop a purpose designed communication platform for subsea applications. The company Wireless Instrumentation Systems (WINS) AS has a pilot project with Statoil ASA on the production fields Gullfaks and AAsgard. WINS will install retrofit autonomous well-sensors that will transmit data wirelessly from the well to the seabed.

This project outlines the development phase of this communication system providing the ?last mile? of signal transmission from the seabed to the topside platform or production center.

The main concern for this platform is the subsea currents as they might induce vibrations to the frame structure. This will disable the platforms ability to receive signals from the well-sensors as the principle of communication is very weak electromagnetic waves. To receive these signals, hypersensitive magnetometers

are used in a 3D array. As a pilot project WINS will also test the reception principle of measuring electric potential on the seabed by the use of electrodes. A deployment system for this must be incorporated in the design.

Several concepts were conceived and discarded as they failed the requirement specifications during analysis. However, this data gained knowledge to design the final concept, with success.

The final concept has a very rigid frame with a tetrahedron shape. All materials are non-magnetic as this would distort the signal reception. An interconnected pressure vessel system contains the magnetometers and the data acquisition unit. Each magnetometer is firmly attached to the rigid frame structure to avoid

vibrations. The electrodes will be deployed by the use of purpose built cable spool frames, which will be performed by a Remotely Operated Vehicle (ROV).

This report describes in detail the integrated concepts of the final product and how it addresses the requirement specifications given by WINS and Statoil ASA.
Publisher
NTNU

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit
 

 

Browse

ArchiveCommunities & CollectionsBy Issue DateAuthorsTitlesSubjectsDocument TypesJournalsThis CollectionBy Issue DateAuthorsTitlesSubjectsDocument TypesJournals

My Account

Login

Statistics

View Usage Statistics

Contact Us | Send Feedback

Privacy policy
DSpace software copyright © 2002-2019  DuraSpace

Service from  Unit