Effect of CEC, Salinity, Sand Content, and Particle Size Distribution on Mud Rock Properties

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dc.contributor.advisorMyers, Michael T.
dc.contributor.committeeMemberHathon, Lori A.
dc.contributor.committeeMemberGermaine, John T.
dc.creatorDessouki, Mohab
dc.creator.orcid0000-0002-3134-9147
dc.date.accessioned2018-02-15T19:43:39Z
dc.date.available2018-02-15T19:43:39Z
dc.date.createdDecember 2015
dc.date.issued2015-12
dc.date.submittedDecember 2015
dc.date.updated2018-02-15T19:43:40Z
dc.description.abstractMudrocks are fine grained, extremely low porosity and permeability sedimentary rocks that contain significant amounts of clay minerals. These rocks are difficult to characterize their physical properties or test their mechanical behavior. Clay’s cation exchange capacity (CEC) make these rocks water sensitive due to double layer expansion or collapse. Conductometric titration and methylene blue colorimetry were used to measure CEC and compared to cobalt hexamine technique values provided by a vendor. In this work, we studied petrophysical and geomechanical properties of resedimented mudrock core samples. Three major properties were varied; they are clay’s percentage, cation Exchange capacity and brine salinity. The use of the reconsolidation technique allows us to create mud rocks in the laboratory while controlling mineralogy, sorting, brine salinity, and axial stress, this is similar to sand pack experiments performed by (Hathon & Myers, 2011) which showed that mineralogy, grain size, sorting, stress history and incipient overgrowth cements all affect the porosity as a function of depletion stress. Triaxial testing is commonly used to determine the failure envelope for mudrocks. The most common application of this technique requires multiple identical samples. In heterogeneous formation identical samples are often difficult to obtain. The twinning problem is overcome by performing ‘multistage’ tri-axial tests. These tests were performed on reconsolidated mud rocks to determine their strength properties (Salman, Myers, & Sharf Aldin, 2015). Strength data are compared based on the sample’s variations such as CEC, brine salinity, and clay content.
dc.description.departmentPetroleum Engineering, Department of
dc.format.digitalOriginborn digital
dc.format.mimetypeapplication/pdf
dc.identifier.urihttp://hdl.handle.net/10657/2152
dc.language.isoeng
dc.rightsThe author of this work is the copyright owner. UH Libraries and the Texas Digital Library have their permission to store and provide access to this work. Further transmission, reproduction, or presentation of this work is prohibited except with permission of the author(s).
dc.subjectCEC
dc.subjectCation Exchange Capacity
dc.subjectConductometric Titration
dc.subjectMethylene Blue
dc.subjectClay
dc.subjectMud Rock
dc.subjectStrength
dc.subjectPorosity
dc.subjectPermeability
dc.subjectMultistage triaxial test
dc.subjectResedimentation
dc.subjectReconsolidation
dc.subjectGeomechanics
dc.subjectPetrophysics
dc.subjectGeotechnical
dc.subjectStress
dc.subjectFunction
dc.subjectReservoir depth
dc.subjectCorrection factor
dc.subjectGrain size distribution
dc.subjectParticle size distribution
dc.subjectXRD
dc.subjectMineralogy
dc.subjectSand content
dc.subjectClay content
dc.subjectShales
dc.subjectDouble layer
dc.subjectSalinity
dc.subjectProperties
dc.subjectSwelling
dc.subjectFriction angle
dc.subjectHydraulic conductivity
dc.titleEffect of CEC, Salinity, Sand Content, and Particle Size Distribution on Mud Rock Properties
dc.type.dcmiText
dc.type.genreThesis
thesis.degree.collegeCullen College of Engineering
thesis.degree.departmentPetroleum Engineering, Department of
thesis.degree.disciplinePetroleum Engineering
thesis.degree.grantorUniversity of Houston
thesis.degree.levelMasters
thesis.degree.nameMaster of Science

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