Advertisement

Engineering Geological, Geotechnical and Geohazard Modelling for Offshore Abu Dhabi, UAE

  • Andrew Farrant
  • Ricky Terrington
  • Gareth Carter
  • Matthew Free
  • Esad Porovic
  • Jason Manning
  • Yannis FourniadisEmail author
  • Richard Lagesse
  • Charlene Ting
  • Tarek Omar
Conference paper

Abstract

This paper presents the development of an engineering geological, geotechnical and geohazard model for four oil and gas fields offshore of Abu Dhabi in the Arabian Gulf. The purpose of the model was to characterize the shallow ground conditions for the design of offshore platforms and other infrastructure. The model was developed based on the interpretation of nearly 60 years of ground engineering data including a vast amount of boreholes, laboratory test and cone penetration test data. Carbonate-rich sediments dominate the shallow geology of Abu Dhabi offshore region. The main lithological units of Miocene to Pleistocene age comprise weak carbonate rocks, calcarenite and calcisiltite, with frequent lenses and pockets of gypsum. These units are overlain by recent carbonate marine deposits. The geological models for the region were developed using the software package GSI3D™. Geostatistical methods were applied in the treatment of geological uncertainty in the model, and the analysis of the associated geotechnical design recommendations. The model also includes a detailed review of local and regional natural hazards, including seismic and submarine geohazards, with the potential to affect existing and proposed offshore infrastructure. Interrogation of the model enables effective decision-making on oil and gas development issues related to offshore ground investigation for the siting of new developments. This model can allow these works to be optimized at the advanced stages of planning, saving on time, cost and significantly reducing health, safety and environmental risks.

Keywords

Geology Geotechnics Geohazards Modelling Offshore Abu Dhabi UAE 

References

  1. Aldiss, D.T., Black, M.G., Entwisle, D.C., Page, D.P., Terrington, R.L.: Benefits of a 3D geological model for major tunnelling works: an example from Farringdon, east-central London, UK. Q. J. Eng. Geol.Hydrogeol. 45(4), 405–414 (2012).  https://doi.org/10.1144/qjegh2011-066CrossRefGoogle Scholar
  2. Alsharhan, A.S., Kendall, C.S.C.: Holocene coastal carbonates and evaporites of the southern Arabian Gulf and their ancient analogues. Earth Sci. Rev. 61(3), 191–243 (2003)CrossRefGoogle Scholar
  3. De Beer, J., Price, S.J., Ford, R.: 3D modelling of geological and anthropogenic deposits at the World Heritage Site of Bryggen in Bergen, Norway. Quat. Int. 251, 107–116 (2012).  https://doi.org/10.1016/j.quaint.2011.06.015CrossRefGoogle Scholar
  4. DNV: DNV-RP-207 Statistical representation of soil data (2012)Google Scholar
  5. Evans, G., (Ed.): An historical review of the Quaternary sedimentology of the Gulf (Arabian/Persian Gulf) and its geological impact. Quaternary carbonate and evaporite sedimentary facies and their ancient analogues. A tribute to Douglas James Shearman. Special Publication Number 43 of the International Association of Sedimentologists, Wiley, Hoboken (2011)Google Scholar
  6. Farrant, A.R., Ellison, R.A., Thomas, R.J., Pharaoh, T.C., Newell, A.J., Goodenough, K.M., Lee, J.R., Kinbell, G., Knox, R.O’B.: The geology and geophysics of the United Arab Emirates, vol 6. In: Geology of the western and central United Arab Emirates, pp. 339. British Geological Survey, Keyworth, Nottingham (2012)Google Scholar
  7. International Organization for Standardization (ISO): Petroleum and natural gas industries-offshore production installations-guidelines on tools and techniques for hazard identification and risk assessment (Report No. 17776). International Organization for Standardization, Geneva (2002)Google Scholar
  8. Kessler, H., Mathers, S., Sobisch, H.G.: The capture and dissemination of integrated 3D geospatial knowledge at the British Geological Survey using GSI3D software and methodology. Comput. Geosci. 35(6), 1311–1321 (2009)CrossRefGoogle Scholar
  9. Mathers, S.J., Terrington, R.L., Waters, C.N., Leslie, A.G.: GB3D: a framework for the bedrock geology of Great Britain. Geosci. Data J. 1(1), 30–42 (2014).  https://doi.org/10.1002/gdj3.9CrossRefGoogle Scholar
  10. Price, S.J., Farrant, A.R., Leslie, A., Terrington, R.L., Merritt, J., Entwisle, D., Thorpe, S., Horabin, C., Gow, H., Self, S., McCormick, T.: A 3D superficial and bedrock geological model of the Abu Dhabi urban area, United Arab Emirates. British Geological Survey Commercial Report, CR/11/138, pp. 74 (2012)Google Scholar
  11. Williams, A.H., Walkden, G.M.: Late quaternary highstand deposits of the Southern Arabian Gulf: a record of sea-level and climate change. Geol. Soc. London, Special Publications 195(1), 371–386 (2002)CrossRefGoogle Scholar

Copyright information

© Springer Nature Switzerland AG 2019

Authors and Affiliations

  • Andrew Farrant
    • 1
  • Ricky Terrington
    • 1
  • Gareth Carter
    • 1
  • Matthew Free
    • 2
  • Esad Porovic
    • 2
  • Jason Manning
    • 2
  • Yannis Fourniadis
    • 2
    Email author
  • Richard Lagesse
    • 2
  • Charlene Ting
    • 2
  • Tarek Omar
    • 3
  1. 1.British Geological SurveyNottinghamUK
  2. 2.ArupLondonUK
  3. 3.Abu Dhabi Marine Operating CompanyAbu DhabiUnited Arab Emirates

Personalised recommendations