In situ free phase gas production in initially saturated sediment

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dc.contributor.advisorRyan, M. Cathryn
dc.contributor.authorAbboud, Jason M.
dc.contributor.committeememberLauer, Rachel M.
dc.contributor.committeememberHayley, Jocelyn L. H.
dc.contributor.committeememberWong, Ron C. K.
dc.date2019-06
dc.date.accessioned2019-04-25T18:16:10Z
dc.date.available2019-04-25T18:16:10Z
dc.date.issued2019-04-24
dc.description.abstractFree-phase gas (FPG) formation and migration in gas-saturated groundwater has geological and engineering implications. FPG has been implicated in geologic overpressurizing, and in remote earthquake triggering following FPG exsolution. FPG exsolution occurs when total dissolved gas pressure (PTDG) exceeds porewater pressure (PW) and capillary pressure (PCAP), forming FPG bodies. Existing soil-water characteristic curves show the relationship between desaturation and matric potential, but neglect desaturation that occurs as a consequence of in situ FPG formation. This research sought to observe and characterize FPG production in a previously saturated zone, and measure the responses of PTGD, PW, and water content during step-function unloading of dissolved gas-charged sediment in a loading cell filled with glass beads. A revised FPG characteristic curve showing FPG formation and consumption with respect to capillary pressure is proposed here. Future work can examine these processes with revised techniques to ensure accurate measurement of capillary pressure.en_US
dc.identifier.citationAbboud, J. M. (2019). In situ free phase gas production in initially saturated sediment (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca.en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/36398
dc.identifier.urihttp://hdl.handle.net/1880/110213
dc.language.isoengen_US
dc.publisher.facultyScienceen_US
dc.publisher.institutionUniversity of Calgaryen
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.en_US
dc.subjectGeotechnical Engineeringen_US
dc.subjectHydrogeologyen_US
dc.subject.classificationGeologyen_US
dc.subject.classificationHydrologyen_US
dc.titleIn situ free phase gas production in initially saturated sedimenten_US
dc.typemaster thesisen_US
thesis.degree.disciplineAnthropologyen_US
thesis.degree.grantorUniversity of Calgaryen_US
thesis.degree.nameMaster of Science (MSc)en_US
ucalgary.item.requestcopytrue
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