Young's modulus of kaolinite-illite mixtures during firing

Húlan, Tomáš; Štubňa, Igor

doi:10.1016/j.clay.2020.105584

Cited by 11 publications

(3 citation statements)

References 21 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Grain density is from analysis of sediments acquired from sidewall core samples . Bulk and shear moduli for sand are based on laboratory-measured values ,, for the observed grain mineralogy (quartz with some plagioclase), and clay moduli are based on laboratory values ,, for the observed grain mineralogy (illite with chlorite and kaolinite) . Matching the baseline ( S gh = 0) predicted velocities to the measured log velocities (Figure ) is necessary for accurate S gh estimation, however, and this requires adjustment of bulk and shear moduli.…”

Section: Log Data and Analysismentioning

confidence: 99%

“… a Grain density and mineralogy are obtained from analysis of the sidewall cores acquired in the Hydrate-01 stratigraphic test well as presented by Yoneda et al, with physical properties based on published laboratory values − adjusted to fit baseline values as described in the text. Gas hydrate properties are calculated from relations presented by Helgerud et al., based on lithostratigraphic pressure.…”

Section: Log Data and Analysismentioning

confidence: 99%

See 1 more Smart Citation

Gas Hydrate Saturation Estimates, Gas Hydrate Occurrence, and Reservoir Characteristics Based on Well Log Data from the Hydrate-01 Stratigraphic Test Well, Alaska North Slope

et al. 2022

View full text Add to dashboard Cite

The Hydrate-01 Stratigraphic Test Well was drilled at the Kuparuk 7-11-12 site on the Alaska North Slope in December 2018. Sonic log data provide compressional (P) and shear (S) slowness from which we determine gas hydrate saturation (S gh ) estimates using effective medium theory. The sonic S gh estimates compare favorably with S gh estimated from resistivity and nuclear magnetic resonance (NMR) logs, showing that gas hydrate occupies up to approximately 90% of the pore space in the target reservoir sands. The informally named B1 sand (2294 feet below mean sea level) shows lower V P /V S ratios than the D1 sand (2770 feet below mean sea level), with the lower part of the B1 sand showing lower V P /V S ratios than the upper part of the B1 sand. This corresponds to a stiffer, or more "cemented", behavior for the lower B1 sand and less cemented behavior for the D1 sand. This trend could be due to differences in the reservoirs themselves or in the gas hydrate morphology or to both factors. We observe that the presence of gas hydrate in the upper B1 sand has greater impact on hydraulic permeability (measurements suggest a greater difference between intrinsic and effective permeability) than in the D1 sand, possibly related to gas hydrate morphology but more likely due simply to higher gas hydrate saturations in the upper B1 sand. Analyses of S gh relative to porosity, shale fraction, and intrinsic permeability show that reservoir quality (as represented by these three metrics) exerts control on gas hydrate saturation. Grain size and mineralogy data show somewhat smaller grains and better sorting in the D1 reservoir relative to the upper B1 reservoir and smaller grains and greater clay fraction in the lower B1 reservoir relative to the other two reservoir zones. Together, these data suggest that reservoir characteristics play a role in the observed V P /V S patterns, but gas hydrate morphology (possibly varying with saturation) must also be considered.

show abstract

Section: Log Data and Analysismentioning

confidence: 99%

Section: Log Data and Analysismentioning

confidence: 99%

Gas Hydrate Saturation Estimates, Gas Hydrate Occurrence, and Reservoir Characteristics Based on Well Log Data from the Hydrate-01 Stratigraphic Test Well, Alaska North Slope

et al. 2022

View full text Add to dashboard Cite

show abstract

“…Firing transformations of kaolinite-illitic clays or individual clay minerals (kaolinite, illite) have been the subject of numerous studies, [13][14][15][16][17][18][19] but no attention has been paid to the study of sintering smectitic (montmorillonite) clays either alone or mixed with other clays.…”

Section: Introductionmentioning

confidence: 99%

Study of clay's mineralogy effect on mechanical properties of ceramic body using an experimental design

Ayadi

Baklouti

Kammoun

et al. 2021

Int J Applied Ceramic Tech

View full text Add to dashboard Cite

Three clays minerals namely illite (I), montmorillonite (M), and kaolin (K) were chosen as references to study the effect of mixture composition of clays on the mechanical properties and the shrinkage of the fired ceramic. The study was accomplished using the experimental design methodology. More specifically, a mixture design was carried out in order to establish relationships between mechanical strength and shrinkage of finished products and the proportions of the three clay mineral references in the mixture. The statistical study shows that the fitted models were adequate to describe these properties of fired ceramic bodies. The results demonstrate that the mechanical resistance was mainly governed by the amount of montmorillonite mineral. In fact, the mixture design performed in this study shows clearly that montmorillonite can be incorporated in industrial ceramic products up to 45 wt% with high mechanical resistance. On the other hand, the shrinkage decreases strongly with the amount of kaolin in the mixture and increases with the amount of illite while montmorillonite exhibits moderate effect on this property. The higher strength was shown in mixture in which mullite and anorthite appear together due to the presence of kaolinite and illite and give, as a consequence, a synergic power.

show abstract

Influence of Liquid Nitrogen Cooling State on Mechanical Properties and Fracture Characteristics of Coal

Hou

Gao

et al. 2022

Rock Mech Rock Eng

View full text Add to dashboard Cite

Young's modulus of kaolinite-illite mixtures during firing

Cited by 11 publications

References 21 publications

Gas Hydrate Saturation Estimates, Gas Hydrate Occurrence, and Reservoir Characteristics Based on Well Log Data from the Hydrate-01 Stratigraphic Test Well, Alaska North Slope

Gas Hydrate Saturation Estimates, Gas Hydrate Occurrence, and Reservoir Characteristics Based on Well Log Data from the Hydrate-01 Stratigraphic Test Well, Alaska North Slope

Study of clay's mineralogy effect on mechanical properties of ceramic body using an experimental design

Influence of Liquid Nitrogen Cooling State on Mechanical Properties and Fracture Characteristics of Coal

Contact Info

Product

Resources

About