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Effect of a commercial dispersion of multi walled carbon nanotubes on the hydration of an oil well cementing paste

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Abstract

This work studies the influence of a commercial dispersion of multi wall carbon nanotubes (MWCNT) on the hydration of a class G cement paste, at room and elevated down-hole temperatures. The MWCNT dispersion was produced with a solids concentration of 3.0 % by mass and an anionic surfactant as dispersing agent. Cement pastes with water-to-cement ratio of 0.45 and additions of solid MWCNT by mass of cement up to 0.50 % were studied. Isothermal calorimetry results showed a clear retardation of the hydration of cement caused by the surfactant contained in the MWCNT dispersion. Nevertheless, thermogravimetric evaluations showed that once the hydration reaction resumed, the retardation effect of the surfactant did not have a negative impact on the amount of hydration products precipitated. It was concluded that the commercial MWCNT dispersion presents a good potential to be applied in oil well cement pastes.

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Authors and Affiliations

  1. Civil Engineering Department PEC/COPPE, Universidade Federal do Rio de Janeiro, Rio de Janeiro, 21941-972, Brazil

    Ocar Aurelio Mendoza Reales & Romildo Dias Toledo Filho

  2. Halliburton Brazil Technology Center, Halliburton, Rio de Janeiro, 21941-907, Brazil

    William C. Pearl Jr. & Maria D. M. Paiva

  3. Petrobras Petróleo Brasileiro S.A, Rio de Janeiro, 21941-901, Brazil

    Cristiane R. Miranda

Authors
  1. Ocar Aurelio Mendoza Reales
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  2. William C. Pearl Jr.
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  3. Maria D. M. Paiva
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  4. Cristiane R. Miranda
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  5. Romildo Dias Toledo Filho
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Correspondence to Ocar Aurelio Mendoza Reales.

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Mendoza Reales, O.A., Pearl, W.C., Paiva, M.D.M. et al. Effect of a commercial dispersion of multi walled carbon nanotubes on the hydration of an oil well cementing paste. Front. Struct. Civ. Eng. 10, 174–179 (2016). https://doi.org/10.1007/s11709-015-0324-8

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  • DOI: https://doi.org/10.1007/s11709-015-0324-8

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