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Modeling the dispersion of drilling muds using the bblt model: the effects of settling velocity

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Niu, H and Drozdowski, A and Husain, T and Veitch, B and Bose, N and Lee, K (2009) Modeling the dispersion of drilling muds using the bblt model: the effects of settling velocity. Environmental Modeling and Assessment, 14 (5). pp. 585-594. ISSN 1420-2026

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Abstract

The benthic boundary layer transport (bblt) model was widely used in the Atlantic Canadian offshore region to assess the potential impact zones from drilling wastes discharges from offshore oil and gas drilling. The current version of the bblt uses a single-class settling velocity scenario which may affect its performance, as settling velocity is size, shape and material dependent. In this study, the effects of settling velocity on bblt predictions were assessed by replacing this single-class settling velocity scenario with a multi-class size dependent settling velocity scenario. The new scenario was used in a hypothetical study to simulate the dispersion of barite and fine-grained drilling cuttings. The study showed that the effects of settling velocity on bblt predictions are spatial, temporal, and material dependent.

Item Type: Article
Keywords: drilling muds, dispersion, settling velocity, benthic boundary layer model
Journal or Publication Title: Environmental Modeling and Assessment
Page Range: pp. 585-594
ISSN: 1420-2026
Identification Number - DOI: 10.1007/s10666-008-9162-6
Additional Information: The original publication is available at www.springerlink.com
Date Deposited: 29 Feb 2008 05:22
Last Modified: 18 Nov 2014 03:30
URI: http://eprints.utas.edu.au/id/eprint/3321
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