Nanosilica-latex reduction carbonation-induced degradation in cement of CO2 geological storage wells

Xu, Bin; Yuan, Bin; Wang, Yongqing; Zeng, Shaohua; Yang, Yuhao

doi:10.1016/j.jngse.2019.03.013

Cited by 37 publications

(16 citation statements)

References 41 publications

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“…When the curing temperature was 75°C, 90°C, 100°C, and 130°C, the tensile compression ratio of latex cement slurry increased by 16.4%, 11.6%, 30.2%, and 25.4%, respectively. In latex cement slurry, latex under the action of cement hydration, colloidal particles through the intermolecular force connection to form a layer of polymer film, disperse the stress concentration of cement stone, can greatly increase the deformation capacity of cement stone, improve the toughness of cement stone 23 …”

Section: Resultsmentioning

confidence: 99%

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Measurement of tensile strength of well cement sheath in underground gas storage based on tensile failure method

Song,

Ji,

Zhu

et al. 2023

Engineering Reports

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During gas injection in gas storage, the inner pressure increase, potentially leading to tensile failure of the cement sheath. At present, the fracture strength of cement stone is measured using the Brazilian splitting method (BSM), which is prone to errors due to stress concentration at the loading point. To overcome this drawback, a novel test device and measurement method were developed to assess the tensile. This device utilizes the tensile failure method (TFM) to evaluate the sealing integrity of the cement sheath. The tensile strength tested by the BSM was found to be 40% higher than that tested by the TFM. Furthermore, based on the optimization of the cement slurry for underground gas storage (UGS) in the Jidong oilfield using both the TFM and the BSM. We found that using the BSM cannot optimize the cement slurry that meets the requirements for gas storage well cementing. The latex cement slurry was selected by the TMF for UGS well.

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Section: Resultsmentioning

confidence: 99%

“…In latex cement slurry, latex under the action of cement hydration, colloidal particles through the intermolecular force connection to form a layer of polymer film, disperse the stress concentration of cement stone, can greatly increase the deformation capacity of cement stone, improve the toughness of cement stone. 23…”

Section: F I G U R Ementioning

confidence: 99%

Measurement of tensile strength of well cement sheath in underground gas storage based on tensile failure method

Song,

Ji,

Zhu

et al. 2023

Engineering Reports

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show abstract

“…However, the nanoclay particles considerably raised the plastic viscosity of the cement slurry; therefore, it reduced its pumpability. The effectiveness of incorporating the amorphous-nanosilica-latex (ANL) in enhancing the cement resistance to the carbonation process was studied by Xu et al 24 Their outcomes proved that incorporating the ANL into the cement slurry affected the cement hydration process and enabled the conversion of the low Ca/Si ratio hydration products of portlandite that have low stability in acidic conditions to more stable hydration products. The cement samples prepared with the ANL also have low permeability caused by the film formed by the latex and the pore-filling effect of the nanosilica.…”

Section: Introductionmentioning

confidence: 99%

The Use of Graphite to Improve the Stability of Saudi Class G Oil-Well Cement against the Carbonation Process

et al. 2022

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Oil-well cement physical characteristics considerably change after being carbonated by a CO2-rich solution. In this study, the influence of graphite particles in the characteristics of oil-well cement reacted with a CO2-rich solution at 130 °C and 10 MPa for 10 days was studied. After 10 days of carbonation, incorporating 0.2% by weight of cement (BWOC) of graphite into the cement slurry decreased the carbonation depth by 29.8% as confirmed by the direct measurement and the micro-computerized tomography scan technique. The addition of 0.2% BWOC of graphite also reduced the cement matrix permeability by 31.4% and increased its compressive strength by 16.4% and tensile strength by 23.8% compared to the sample without graphite. The decrease in the cement matrix portlandite concentration and permeability of the samples prepared with graphite contributed to promote the cement matrix carbonation resistance. The microscopic images also proved that the incorporation of graphite delayed the leaching of calcium carbonate, and this is also attributed to decreasing the cement strength deterioration.

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“…Natural gas is entering a significant development phase based on the global energy requirements that have identified natural gas as a transition fuel (Paris Agreement, 2015) to promote sustainable and clean energies. [1][2][3][4][5][6][7][8][9] However, for mature gas reservoirs, excessive water production is a major challenge that has the potential to hinder this growth. To counter this, polymer treatments are frequently utilized in oil and gas wells to reduce water production (i.e., water shut-off treatment using relative permeability modifiers, RPM).…”

Section: Introductionmentioning

confidence: 99%

Impact of prolonged water‐gas flow on the performance of polyacrylamide

Al‐Shajalee

Seyyedi

Verrall

et al. 2021

J of Applied Polymer Sci

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Nanosilica-latex reduction carbonation-induced degradation in cement of CO2 geological storage wells

Cited by 37 publications

References 41 publications

Measurement of tensile strength of well cement sheath in underground gas storage based on tensile failure method

Measurement of tensile strength of well cement sheath in underground gas storage based on tensile failure method

The Use of Graphite to Improve the Stability of Saudi Class G Oil-Well Cement against the Carbonation Process

Impact of prolonged water‐gas flow on the performance of polyacrylamide

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