The article presents the results of the study of graphene oxide additives influence on the physical and mechanical properties of cement stone. The prerequisite for the study was the use of carbon nanomaterials, in particular graphene and graphene oxide, for cement slurry, since these substances have unique physical and mechanical characteristics and determine the rheological properties of liquids at various temperatures and pressures. The authors present the result of experimental studies including graphene oxides during the hardening of the cement mixture, the strength of cement stone, the rheological properties of cement slurry, the properties of the adhesive action of the metal – cement pair, and the structure of cement stone. PCT-I-G cement was used as the basis of the cement mixture. RG-T1 graphene oxide nanoplates were used as a additive. Methods of experimental studies of cement slurry properties correspond to national standards GOST 310.1-76 – GOST 310.3-76, GOST 310.1–4–81. The setting time of the cement paste is carried out using the VIKA IV-2 device according to TU 25-04.2550-80. The rheological properties of cement slurries were measured using an OFITE 900 rotational viscometer. It has been established that the addition of graphene oxide in an amount of 0.5-1.5% leads to a significant reduction in the setting time of the cement slurry compared to cement without additives. It has been experimentally shown that an increase in the proportion of graphene oxide leads to an increase in the tensile strength of cement stone. The influence of graphene oxide components on the rheological properties of cement slurry was also discovered, which is manifested in a decrease in dynamic shear stress and effective viscosity at a shear rate of 300 s-1. Using electron microscopic methods, it has been established that the development of graphene oxide has a significant impact on the structure of cement stone, changing its characteristics and porosity. These results indicate the potential of using graphene oxide to improve the properties of cement materials.
References
1. Agi A., Junin R., Gbadamosi A., Mechanism governing nanoparticle flow behavior in porous media: insight for enhanced oil recovery applications, International Nano Letters, 2018, V. 8(2), pp. 49–77, DOI: https://doi.org/10.1007/s40089-018-0237-3
2. Agzamov F.A., Ismagilova E.R., Self-healing cements - the key to maintaining the integrity of cement sheath. Part 1. (In Russ.), Nanotekhnologii v stroitel'stve, 2019, V. 11, no. 5, pp. 577-586, DOI: https://doi.org/10.15828/2075-8545-2019-11-5-577-586
3. Bekbaev A.A., Agzamov F.A., Dispersed reinforcement as a factor of increasing the quality of the lightweight cements (In Russ.), Stroitel'stvo neftyanykh i gazovykh skvazhin na sushe i na more, 2018, no. 8, pp. 38-42, DOI: https://doi.org/10.30713/0130-3872-2018-8-38-42
4. Mohammedameen A.I.M., Berkane W., Tsenev N.K., Some features of the effect of nanosilica on modification for cement slurry in oil-gas wells, Collected papers “Tekhnologicheskie resheniya stroitel'stva skvazhin na mestorozhdeniyakh so slozhnymi geologo-tekhnologicheskimi usloviyami ikh razrabotki” (Technological solutions for the construction of wells in fields with complex geological and technological conditions for their development), Proceedings of II international scientific and practical conference dedicated to the memory of Viktor Efimovich Kopylov, Tyumen, 15–17 February 2022, Tyumen: Publ. of TIU, 2022, pp. 466-472.
5. Hajiabadi S.H., Aghae H., Kalateh-Aghamohammadi M., Shorgasthi M., An overview on the significance of carbon-based nanomaterials in upstream oil and gas industry, Journal of Petroleum Science and Engineering, 2020, V. 186, Article no. 106783, DOI: https://doi.org/10.1016/j.petrol.2019.106783
6. Hamza M.F., Sinnathambi C.M., Merican Z.M., Recent advancement of hybrid materials used in chemical enhanced oil recovery (CEOR): a review, IOP Conference Series: Materials Science and Engineering, 2017, V. 206, Article no. 012007, DOI: https://doi.org/10.1088/1757-899x/206/1/012007
7. Sharma M.M., Chenevert M.E., Guo Q. et al., A new family of nanoparticle based drilling fluids, SPE-160045-MS, 2012, DOI: https://doi.org/10.2118/160045-MS
8. Suleymanov B.A., Veliev E.F., The effect of particle size distribution and the nano-sized additives on the quality of annulus isolation in well cementing (In Russ.), SOCAR Proceedings, 2016, no. 4, pp. 4–10, DOI: https://doi.org/10.5510/ogp20160400293
9. Artioli G., Ferrari G., Dalkoni M.C., Valentini L., 10-Nanosemines as modifiers of the cement hydration kinetics, Smart Nanoconcretes and Cement-Based Materials, 2020, pp. 257–269, DOI: https://doi.org/10.1016/B978-0-12-817854-6.00010-6
10. Fedorova G.D., Aleksandrov G.N., Smagulova S.A., Research of stability of water suspension of graphene oxide (In Russ.), Stroitel'nye materialy, 2015, no. 2, pp. 15–21.
11. Shawgi A., Chinedum P.E., Saeed S., Improvement in cement sealing properties and integrity using conductive carbon nano materials: from strength to thickening time, SPE-191709-MS, 2018, DOI: https://doi.org/10.2118/191709-MS
12. Ryabchikov P., Yakimovich V., Batyanovskiy E., Assessment of influence of carbon nanomaterials on properties of cement and cement stone, In: Contemporary issues of concrete and reinforced concrete: Collected research papers, Minsk: Publ. of Institute BelNIIS, 2017, V. 9, pp. 393–413, DOI: https://doi.org/10.23746/2017-9-24
13. Agzamov F.A., Grigor'ev A.Yu., Modification of portland cement with nanoadditives (In Russ.), Nanotekhnologii v stroitel'stve, 2022, no. 14(4), pp. 319–327,
