Greek lignites as additives for controlling filtration properties of water-bentonite suspensions at high temperatures

Kelessidis, VC; Tsamantaki, C; Michalakis, A; Christidis, GE; Makri, P; Papanicolaou, K; Foscolos, A

dc.contributor.author	Kelessidis, VC	en
dc.contributor.author	Tsamantaki, C	en
dc.contributor.author	Michalakis, A	en
dc.contributor.author	Christidis, GE	en
dc.contributor.author	Makri, P	en
dc.contributor.author	Papanicolaou, K	en
dc.contributor.author	Foscolos, A	en
dc.date.accessioned	2014-03-01T01:26:25Z
dc.date.available	2014-03-01T01:26:25Z
dc.date.issued	2007	en
dc.identifier.issn	0016-2361	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/18067
dc.subject	Drilling mud additive	en
dc.subject	Filtration control	en
dc.subject	Humic and fulvic acids	en
dc.subject.classification	Energy & Fuels	en
dc.subject.classification	Engineering, Chemical	en
dc.subject.other	Additives	en
dc.subject.other	Bentonite	en
dc.subject.other	Carboxylic acids	en
dc.subject.other	Filtration	en
dc.subject.other	High temperature effects	en
dc.subject.other	Ion exchange	en
dc.subject.other	Positive ions	en
dc.subject.other	Drilling mud additives	en
dc.subject.other	Fulvic acids	en
dc.subject.other	Humic acids	en
dc.subject.other	Lignite	en
dc.title	Greek lignites as additives for controlling filtration properties of water-bentonite suspensions at high temperatures	en
heal.type	journalArticle	en
heal.identifier.primary	10.1016/j.fuel.2006.10.009	en
heal.identifier.secondary	http://dx.doi.org/10.1016/j.fuel.2006.10.009	en
heal.language	English	en
heal.publicationDate	2007	en
heal.abstract	The effectiveness of Greek lignites to control the filtration characteristics of water-bentonite suspensions and to minimize formation damage at high temperatures was studied. Twenty-six lignite samples from various peat/lignite deposits in Greece were used together with a commercial lignite product. The contents of humic and fulvic acids, humins, oxygen, ash and the cation exchange capacity of lignite samples were examined with respect to fluid loss of these suspensions. The results show that most samples provided very good filtration control of the water-bentonite suspensions after exposure to 177 degrees C with some being superior to the commercial product. Better performance was observed after addition of 3% w/v lignite. Total humic and fulvic acids as percentage of dry lignite matter and the organic matter as lignite percentage showed a weak inverse correlation with the fluid loss volumes. (c) 2006 Elsevier Ltd. All rights reserved.	en
heal.publisher	ELSEVIER SCI LTD	en
heal.journalName	Fuel	en
dc.identifier.doi	10.1016/j.fuel.2006.10.009	en
dc.identifier.isi	ISI:000245717900023	en
dc.identifier.volume	86	en
dc.identifier.issue	7-8	en
dc.identifier.spage	1112	en
dc.identifier.epage	1121	en