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Slurry transport and particle settling in annulus in cuttings reinjection process

The expending interest in cuttings re-injection process has brought into focus on technical problems relating to the flow and stability properties of suspensions. To design a successful injection program, it is necessary to obtain an optimum delivery efficiency of the cuttings into the formation and...

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Main Authors:	Junin, Radzuan, Kong, Wai Meng
Format:	Article
Language:	English
Published:	Penerbit UTM Press 2008
Subjects:	TD Environmental technology. Sanitary engineering
Online Access:	http://eprints.utm.my/id/eprint/8730/1/UTMjurnalTEK_49F_DIS%5B28%5D.pdf http://eprints.utm.my/id/eprint/8730/
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spelling	my.utm.87302010-10-14T04:48:31Z http://eprints.utm.my/id/eprint/8730/ Slurry transport and particle settling in annulus in cuttings reinjection process Junin, Radzuan Kong, Wai Meng TD Environmental technology. Sanitary engineering The expending interest in cuttings re-injection process has brought into focus on technical problems relating to the flow and stability properties of suspensions. To design a successful injection program, it is necessary to obtain an optimum delivery efficiency of the cuttings into the formation and the problem of annulus plugging must be avoided. This paper presents the results of a laboratory study to investigate the slurry transport and settling velocity of particles in slurry in vertical annulus. Some aspect of the investigation into the effects of particle size, particle concentration, carrying fluid viscosity and slurry flow rate towards the particle velocity were examined. A criterion for assessing the efficiency of particle transport in slurry in a downward vertical annulus flow, using a relative particle velocity (Vp/Vm) measurement, has been established. The results indicate that the gross effect on particle velocity is similar in both static and dynamic condition. An increase in base fluid viscosity and particle concentration lowers the particle velocity, while a greater particle size increases the particle velocity. A prediction of optimum slurry condition based on results from static and dynamic tests has been done and it shows that slurry with base fluid viscosity of 66.7 cp is needed to achieve the optimum condition in carrying 30% by volume of sand particles with the size of 425 Î¼m - 500 Î¼m into the fractured formation. Penerbit UTM Press 2008-12 Article PeerReviewed application/pdf en http://eprints.utm.my/id/eprint/8730/1/UTMjurnalTEK_49F_DIS%5B28%5D.pdf Junin, Radzuan and Kong, Wai Meng (2008) Slurry transport and particle settling in annulus in cuttings reinjection process. Jurnal Teknologi (49F). pp. 281-295. ISSN 0127-9696
institution	Universiti Teknologi Malaysia
building	UTM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Teknologi Malaysia
content_source	UTM Institutional Repository
url_provider	http://eprints.utm.my/
language	English
topic	TD Environmental technology. Sanitary engineering
spellingShingle	TD Environmental technology. Sanitary engineering Junin, Radzuan Kong, Wai Meng Slurry transport and particle settling in annulus in cuttings reinjection process
description	The expending interest in cuttings re-injection process has brought into focus on technical problems relating to the flow and stability properties of suspensions. To design a successful injection program, it is necessary to obtain an optimum delivery efficiency of the cuttings into the formation and the problem of annulus plugging must be avoided. This paper presents the results of a laboratory study to investigate the slurry transport and settling velocity of particles in slurry in vertical annulus. Some aspect of the investigation into the effects of particle size, particle concentration, carrying fluid viscosity and slurry flow rate towards the particle velocity were examined. A criterion for assessing the efficiency of particle transport in slurry in a downward vertical annulus flow, using a relative particle velocity (Vp/Vm) measurement, has been established. The results indicate that the gross effect on particle velocity is similar in both static and dynamic condition. An increase in base fluid viscosity and particle concentration lowers the particle velocity, while a greater particle size increases the particle velocity. A prediction of optimum slurry condition based on results from static and dynamic tests has been done and it shows that slurry with base fluid viscosity of 66.7 cp is needed to achieve the optimum condition in carrying 30% by volume of sand particles with the size of 425 Î¼m - 500 Î¼m into the fractured formation.
format	Article
author	Junin, Radzuan Kong, Wai Meng
author_facet	Junin, Radzuan Kong, Wai Meng
author_sort	Junin, Radzuan
title	Slurry transport and particle settling in annulus in cuttings reinjection process
title_short	Slurry transport and particle settling in annulus in cuttings reinjection process
title_full	Slurry transport and particle settling in annulus in cuttings reinjection process
title_fullStr	Slurry transport and particle settling in annulus in cuttings reinjection process
title_full_unstemmed	Slurry transport and particle settling in annulus in cuttings reinjection process
title_sort	slurry transport and particle settling in annulus in cuttings reinjection process
publisher	Penerbit UTM Press
publishDate	2008
url	http://eprints.utm.my/id/eprint/8730/1/UTMjurnalTEK_49F_DIS%5B28%5D.pdf http://eprints.utm.my/id/eprint/8730/
_version_	1643645057187708928
score	13.211869

Slurry transport and particle settling in annulus in cuttings reinjection process

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