Influence of kaolin ignition temperature changes on the strength qualities of proppants

Reshetova, A. A.; Вакалова, Т. В.; Govorova, L.P.; Domukhovskaya, E. A.

doi:10.1109/ifost.2012.6357479

Cited by 3 publications

(3 citation statements)

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“…Evidently the maturing temperature range is between 1350 and 1450 °C. this corresponds with previous reports [2,3,5]. The chosen batch samples temperatures were based on this analysis.…”

Section: Bauxite -Gd 2 O 3 Mixtures Characterizationssupporting

confidence: 85%

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High macroscopic neutron capture cross section ceramics based on bauxite and Gd2O3

et al. 2020

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The effect of the addition of Gadolinium oxide (Gd2O3) up to 10 wt.% in bauxite was studied and its thermal behavior compared with pure bauxite. The incorporation of Gd2O3 is of technological interest for the design of smart traceable ceramic proppants used for unconventional gas and oil well stimulation. These high macroscopic neutron capture cross section proppants are used to obtain relevant information, such as the location and height of the created hydraulic fractures, through a neutron based detection technology. The study comprised a set of thermal and sintering behavior analyses up to 1500 ?C of mixtures up to 10 wt.% addition of Gd2O3. The developed texture and microstructure was also assessed. A simple mechanical characterization was performed as well. Fully-dense pore-free microstructures were developed, with alumina and mullite as the main crystalline phases. Gadolinium secondary and ternary alumino-silicate phases were also observed after thermal treatment. These present a needle morphology that might result in reinforcement mechanisms. No important glassy phase was detected; although sintering was enhanced, the Gd2O3 oxide main role was found to be as a sintering aid rather than a strict flux agent. The mechanical behavior remained fragile with the rare oxide addition. In fact, the mechanical resistance increased up to 20 wt.% for the 10 wt.% added sample. The oxide addition together with the bauxite dehydroxilation mass loss resulted in materials with up to 1.5 x 105 (c.u.) macroscopic neutron capture cross section materials. The obtained results permit to define design strategies of high macroscopic neutron capture ceramic materials for wellbore and developed fractures description.

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“…Evidently the maturing temperature range is between 1350 and 1450 °C. this corresponds with previous reports [2,3,5]. The chosen batch samples temperatures were based on this analysis.…”

Section: Bauxite -Gd 2 O 3 Mixtures Characterizationssupporting

confidence: 85%

“…Ceramic proppants have widely demonstrated their suitability to fulfill these requirements with a good cost-availability-performance relation. Ceramic proppants belong to the Al 2 O 3 -SiO 2 system and are manufactured from bauxite and/or kaolin clays (US Patent 8,234,072 B2); [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

High macroscopic neutron capture cross section ceramics based on bauxite and Gd2O3

et al. 2020

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“…Earlier studies of kaolin and fire-clay [4][5][6], and bauxite raw materials behavior at heating showed that the presence of corundum reflexes in addition to mullite reflexes is observed on X-ray diffractogram during firing of wocheinite at the temperature of 1100 °C. With further increase of the firing temperature the intensity of these reflexes increases.…”

Section: Resultsmentioning

confidence: 99%

Activation of Synthesis and Sintering of Mullite Aluminosilicate Ceramics Based on Natural Raw Materials

Вакалова

Govorova

Reshetova

et al. 2014

AMR

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It is found out that activation of the sintering process for refractory clay-containing raw materials (rusk kaolin and wocheinite) is provided using additives of 3d-transition elements oxides (Fe2O3 and MnO2) in the amount of 2 - 5 wt. % due to formation of defective solid solutions of mullite by isovalent substitution mechanism as well as fluxing additives of alkaline and alkaline-earth oxides (Na2O, MgO) in the amount of 2 wt. % by regulating rheological properties of silicate melts.

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Improvement of sinterability and mechanical properties of magnesia-silicate ceramics with enstatite phase from mixtures of serpentinite with silica additives

Вакалова

Sergeev

Maksimova

et al. 2022

Journal of Industrial and Engineering Chemistry

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Influence of kaolin ignition temperature changes on the strength qualities of proppants

Cited by 3 publications

References 1 publication

High macroscopic neutron capture cross section ceramics based on bauxite and Gd2O3

High macroscopic neutron capture cross section ceramics based on bauxite and Gd2O3

Activation of Synthesis and Sintering of Mullite Aluminosilicate Ceramics Based on Natural Raw Materials

Improvement of sinterability and mechanical properties of magnesia-silicate ceramics with enstatite phase from mixtures of serpentinite with silica additives

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