TECHICAL Series MATHEMATICS • INFORMATICS • PHYSICS Series PHILOLOGY Series ECONOMIC SCIENCES Sereies EDUCATIONAL SCIENCES Series LAW AND SOCIAL SCIENCES Series
Can Antique Mortars Be Good Oil Well Cements
(Muzeul de Ştiinţe Naturale al Judeţului Prahova, Str. Erou Călin Cătălin, nr. 1, Ploieşti e-mail: banumagdalena@yahoo.com)
Vol LX • No. 4/2008
Magdalena Banu
Muzeul de Ştiinţe Naturale al Judeţului Prahova, Str. Erou Călin Cătălin, nr. 1, Ploieşti
e-mail: banumagdalena@yahoo.com

 Keywords   puzzolana, slag, metakaolin, silica fume, fly ashes, compressive strength, permeability

 Abstract
The model for the composition and preparation of the Roman cements has proven its efficiency over the centuries. The reliability of mortars prepared on this basis, used in building some constructions in salt sea water (the harbours on the Mediterranean) or in sweet water (Traian's bridge over the Danube) has made us think that similar recipes may be successfully used in cementing oil wells.
The special qualities of these binders used in Antiquity are due to the presence in their composition of certain products of Pozzolanic type. Through this study we have attempted to identify the chemical and structural properties of the modern Pozzolanic materials, as well as the manner and proportions in which they can be used to improve the characteristics of the oil well cements.

 Rezumat
Modelul de compunere şi de preparare a cimenturilor romane şi-a dovedit eficienţa peste secole. Fiabilitatea mortarelor preparate pe această bază, utilizate la realizarea unor construcţii în apă sărată de mare (porturile de la Marea Mediterană) sau în apă dulce (Podul lui Traian de la Dunăre) ne-a făcut să ne gândim că reţete asemănătoare pot fi folosite cu succes şi la cimentarea sondelor.
Calităţile deosebite ale acestor lianţi folosiţi în antichitate se datorează prezenţei în compoziţia lor a unor produşi de tip puzzolanic. Prin acest studiul am căutat să identificăm proprietăţile chimice şi structurale ale materialelor puzzolanice moderne, precum şi modul şi proporţiile în care ele pot fi folosite pentru a îmbunătăţi caracteristicile cimenturilor de sondă.



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