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AuthorAl-Sadat, W.
AuthorNasser, M.S.
AuthorChang, F.
AuthorNasr-El-Din, H.A.
AuthorHussein, I.A.
Available date2016-01-14T13:24:27Z
Publication Date2014-12
Publication NameJournal of Petroleum Science and Engineering
ResourceScopus
Identifierhttp://dx.doi.org/10.1016/j.petrol.2014.09.014
CitationAl-Sadat, W., Nasser, M.S., Chang, F., Nasr-El-Din, H.A., Hussein, I.A., "Rheology of a viscoelastic zwitterionic surfactant used in acid stimulation: Effects of surfactant and electrolyte concentration", (2014) Journal of Petroleum Science and Engineering, 124, pp. 341-349
ISSN0920-4105
URIhttp://hdl.handle.net/10576/4089
AbstractAcid diversion systems play an important role in increasing the efficiency of the acid stimulation process. Viscoelastic surfactant (VES) based diverting systems have many advantages that make them preferred for well acid stimulation mainly due to their exceptional rheological characteristics. In this study, the rheological behavior of a zwitterionic surfactant (erucylamidopropyl carboxybetaine) used in the acid stimulation process is investigated through the steady-state and dynamic rheological measurements. The effects of surfactant and electrolyte concentrations and electrolyte type on the VES rheology are examined. It was found that the 7.5wt% VES demonstrated the highest elastic strength in fresh water. The 22.0wt% CaCl2 brine had the highest elastic strength when investigating the effect of the electrolyte concentration. The results also reveal that divalent cation electrolytes such as MgCl2 and CaCl2 increase the solution elasticity more than monovalent cation electrolytes such as NaCl, KCl, and NH4Cl. A strong correlation between the VES, electrolyte concentration, electrolyte type, and the efficiency of acid stimulation process is established.
SponsorKing Fahd University of Petroleum and Minerals (KFUPM). Schlumberger Dhahran Centre for Carbonate Research (SDCR), Saudi Arabia.
Languageen
PublisherElsevier
SubjectElectrolyte
Rheology
Stimulation
Surfactant
Viscoelastic surfactant
Zwitterionic
TitleRheology of a viscoelastic zwitterionic surfactant used in acid stimulation: Effects of surfactant and electrolyte concentration
TypeArticle
Pagination341-349
Volume Number124
dc.accessType Abstract Only


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