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Oil based drilling fluid waste: an overview on environmentally persistent pollutants.

Siddique, Shohel; Kwoffie, Lorraine; Addae-Afoakwa, Kofi; Yates, Kyari; Njuguna, James

Authors

Shohel Siddique

Lorraine Kwoffie

Kofi Addae-Afoakwa

Kyari Yates

James Njuguna

Abstract

Operational discharges of spent drilling fluid, produced water, and accumulated drill cuttings from oil and gas industry are a continuous point source of environmental pollution. To meet the strict environmental standard for waste disposal, oil and gas industry is facing a numerous challenges in technological development to ensure a clean and safe environment. Oil and gas industry generates a large amount of spent drilling fluid, produced water, and drill cuttings, which are very different in every drilling operation in terms of composition and characterisation. This review article highlights the knowledge gap in identifying the different sources of waste streams in combined drilling waste. This paper also emphasises how different chemicals turn into environmentally significant pollutants after serving great performance in oil and gas drilling operations. For instance, oil based drilling fluid performs excellent in deeper drilling and drilling in the harsh geological conditions, but ended with (produces) a significant amount of persistent toxic pollutants in the environment. This review paper provides an overview on the basic concepts of drilling fluids and their functions, sources and characterisation of drilling wastes, and highlights some environmentally significant elements including different minerals present in drilling waste stream.

Journal Article Type Conference Paper
Start Date Sep 12, 2016
Publication Date May 11, 2017
Journal IOP conference series: materials science and engineering
Print ISSN 1757-8981
Electronic ISSN 1757-899X
Publisher IOP Publishing
Peer Reviewed Peer Reviewed
Volume 195
Article Number 012008
Institution Citation SIDDIQUE, S., KWOFFIE, L., ADDAE-AFOAKWA, K., YATES, K. and NJUGUNA, J. 2016. Oil based drilling fluid waste: an overview on environmentally persistent pollutants. IOP conference series: materials science and engineering [online], 195: proceedings of the 3rd International conference on structural nano composites (NANOSTRUC 2016), 12-16 September 2016, Aberdeen, UK, article number 012008. Available from: https://doi.org/10.1088/1757-899X/195/1/012008
DOI https://doi.org/10.1088/1757-899X/195/1/012008
Keywords Environmental pollution; Oil and gas industry; Waste; Challenges; Drilling fluid

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