Effect of Change in Hydrophilic-Lipophilic Balance (HLB) on the State of Stable Invert EMulsion Drilling Fluid

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atmire.migration.oldid2875
dc.contributor.advisorMartinuzzi, Robert
dc.contributor.authorEzeofor, Chukwuemeka Obiajulu
dc.date.accessioned2015-01-21T21:34:41Z
dc.date.available2015-02-23T08:00:38Z
dc.date.issued2015-01-21
dc.date.submitted2015en
dc.description.abstractThe purpose of this project is to modify the wettability of emulsion from being oil-wet to water wet to improve drilling waste management. The adopted strategy is to use the Hydrophilic- Lipophilic Balance (HLB) to alter the affinity of emulsifiers towards the continuous phase of an emulsion system. Invert emulsions with 90:10 ratios of mineral oils (either Drisol or Distillate 822) to deionized water were prepared using HLB numbers ranging from 4.3 to 14.4. Desired HLB values were achieved by corresponding combinations of Span 80 (HLB 4.3)/Tween 80 (HLB 15.0). The emulsions were aged and centrifuged. Emulsion stability was measured by visual phase separation. Invert emulsion with HLB 4.9 showed the highest stability. Corrected Emulsifier Combinations (CEB) with HLB numbers ranging from 10.2 to 14.4 were added to the stable invert emulsions of HLB 4.9 and different properties of the emulsion (phase separation, optical density and viscosity) were studied. The results showed that increase in HLB lead to increase in droplet size which is a desirable effect towards destabilizing the invert emulsion.en_US
dc.identifier.citationEzeofor, C. O. (2015). Effect of Change in Hydrophilic-Lipophilic Balance (HLB) on the State of Stable Invert EMulsion Drilling Fluid (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/25793en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/25793
dc.identifier.urihttp://hdl.handle.net/11023/2009
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectEngineering--Petroleum
dc.subject.classificationEnvironmetalen_US
dc.subject.classificationHLBen_US
dc.subject.classificationDrilling Fluiden_US
dc.titleEffect of Change in Hydrophilic-Lipophilic Balance (HLB) on the State of Stable Invert EMulsion Drilling Fluid
dc.typemaster thesis
thesis.degree.disciplineChemical and Petroleum Engineering
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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