Toward less conservative flotation criteria for lightweight cables and pipelines

Tommaso Bizzotto, Michael John Brown, Toby Powell, Andrew John Brennan, Howard Chandler

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

This paper aims to give a new perspective on possible criteria for the pipeline and cable flotation phenomenon. Laboratory flotation and pullout tests have been conducted in high moisture content kaolin clay using a model pipeline or cable analogue of 63mm diameter installed at different embedment depths. Uncertainty over the definition of "flotation" has led to comparison of data from previous studies and those obtained from the pull-out tests described herein. Different definitions of flotation may lead to a significant increase in the magnitude of available resistance used in design which can directly affect the commercial choices made for commercial pipelines and cables (e.g. coating type and thickness and minimum burial depth).

Original languageEnglish
Title of host publicationProceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017
PublisherSociety of Petroleum Engineers
Pages535-540
Number of pages6
ISBN (Electronic)9781880653975
Publication statusPublished - 1 Jan 2017
Event27th International Ocean and Polar Engineering Conference, ISOPE 2017 - San Francisco, United States
Duration: 25 Jun 201730 Jun 2017

Conference

Conference27th International Ocean and Polar Engineering Conference, ISOPE 2017
CountryUnited States
CitySan Francisco
Period25/06/1730/06/17

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Keywords

  • Atterberg limits
  • Cable
  • Flotation
  • Kaolin clay
  • Lightweight
  • Liquidity index
  • Pipeline
  • Pull-out
  • Specific gravity

ASJC Scopus subject areas

  • Energy Engineering and Power Technology
  • Ocean Engineering
  • Mechanical Engineering

Cite this

Bizzotto, T., Brown, M. J., Powell, T., Brennan, A. J., & Chandler, H. (2017). Toward less conservative flotation criteria for lightweight cables and pipelines. In Proceedings of the 27th International Ocean and Polar Engineering Conference, ISOPE 2017 (pp. 535-540). Society of Petroleum Engineers.