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Mechanism of Cement Stone Porosity and Permeability Structures for Downhole Fluid Packing

  • Research Article-Petroleum Engineering
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Abstract

Cement ring is the main barrier for downhole fluid sealing. The sealing properties of the cement ring include two aspects: sealing off the cement ring itself and the interface. Numerous studies have been conducted on interface sealing failure. However, there are few studies considering the structural perspective of the sealing performance of the complete cement ring itself. Therefore, this study explores pore structure characteristics of cement stone at the microscopic scale, the influencing factors of fluid flow in the cement stone, and the mechanism of sealing performance of the cement stone. The studies have shown that G-grade and ultra-fine cement stones present high porosity and low permeability. Cement stone pores containing free water represent the prerequisite for effective sealing performance. Capillary pressure, resistance caused by ultimate static shear stress, pore fluid pressure, and additional pressure difference produced by the "Jamin effect" are the main driving factors of cement stone sealing fluid. Likewise, as the main driving factors and the length of the cement stone increase, the sealing ability of the cement stone to fluid will follow Enhanced. Considering that water is a non-Newtonian fluid, when the interfacial tension of gas–water is 47 mN/m, the pore diameter is 0.05 μm, the length of the cement stone is 1000 m, the wetting angle is 100°, and the limit dynamic shear stress is 0.01 Pa, the sealing pressure of the cement stone is 543.66 MPa. Our findings provide a foundation for sealing oil and gas reservoirs with different pressure and permeability characteristics.

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References

  1. Wang, W.; Taleghani, A.D.: Three-dimensional analysis of cement sheath integrity around Wellbores. J. Petrol. Sci. Eng. 121, 38–51 (2014). https://doi.org/10.1016/j.petrol.2014.05.024

    Article  Google Scholar 

  2. Arjomand, E.; Bennett, T.; Nguyen, G.D.: Evaluation of cement sheath integrity subject to enhanced pressure. J. Petrol. Sci. Eng. 170, 1–13 (2018). https://doi.org/10.1016/j.petrol.2018.06.013

    Article  Google Scholar 

  3. Wang, Y.B.; Gao, D.L.; Fang, J.: Assessment of wellbore integrity of offshore drilling in well testing and production. J. Eng. 25, 1419 (2016)

    Google Scholar 

  4. Zinkham, R.E.A.G.: Burst resistance of pipe cemented into the earth. J. Petrol. Technol. 9, 1033–1040 (1962)

    Article  Google Scholar 

  5. Li, Y.; Lu, Y.; Ahmed, R.; Han, B.; Jin, Y.: Nonlinear stress-strain model for confined well cement. Materials 12, 2626 (2019). https://doi.org/10.3390/ma12162626

    Article  Google Scholar 

  6. Zhang, H.; Shen, R.; Li, J.; Xia, Y.; Ban, F.: Elastoplastic analysis of cement sheath of injection & production wellbore under varied casing pressure. Arab. J. Sci. Eng. 43, 6523–6534 (2018). https://doi.org/10.1007/s13369-018-3298-8

    Article  Google Scholar 

  7. Liu, K.; Gao, D.; Yang, J.; Wang, Z.: Effect of expandable cement on increasing sealing ability of cement sheath in shale gas wells. J. Petrol. Sci. Eng. 176, 850–861 (2019). https://doi.org/10.1016/j.petrol.2019.01.077

    Article  Google Scholar 

  8. Kuanhai, D.; Xie, P.; Yue, Y.; Dezhi, Z.; Qiong, L.; Yuanhua, L.: Study on the effect of interface failure between casing and cement sheath on casing stress under non-uniform in-situ stress. Appl. Math. Model. 91, 632–652 (2021). https://doi.org/10.1016/j.apm.2020.10.007

    Article  MathSciNet  MATH  Google Scholar 

  9. Ravi, M.B.K.: Improve the economics of oil and gas wells by reducing the risk of cement failure, IADC/SPE 74497

  10. Meng, M.; Zamanipour, Z.; Miska, S.; Yu, M.; Ozbayoglu, E.M.: Dynamic stress distribution around the wellbore influenced by surge/swab pressure. J. Petrol. Sci. Eng. 172, 1077–1091 (2019). https://doi.org/10.1016/j.petrol.2018.09.016

    Article  Google Scholar 

  11. Wolterbeek, T.K.T.; Peach, C.J.; Spiers, C.J.: Reaction and transport in wellbore interfaces under CO2 storage conditions: experiments simulating debonded cement–casing interfaces. Int. J. Greenh. Gas Con 19, 519–529 (2013). https://doi.org/10.1016/j.ijggc.2013.10.017

    Article  Google Scholar 

  12. Chi, A., et al.: Present situation research on axial flow displacement theory during cementing. Adv. Petrol. Explor. Dev. 2, 32–37 (2014). https://doi.org/10.3968/j.aped.1925543820130602.1779

    Article  Google Scholar 

  13. Gray, K.E.; Podnos, E.; Becker, E.: Finite element studies of near-wellbore region during cementing operations: part I. SPE Drill. Complet. 24(1), 127–136 (2007)

    Article  Google Scholar 

  14. Bosma, K.: Design approach to sealant selection for the life of the well. J. Petrol. Technol. 14(09), 1033–1040 (1999)

    Google Scholar 

  15. Ravi, K., Bosma, M., Gastebled, O.: Improve the Economics of Oil and Gas Wells by Reducing the Risk of Cement Failure. SPE71106 (2002)

  16. Jiang, G.C.; Sun, J.S.; He, Y.B.: Novel waterbased drilling and completion fluid technology to improve wellbore quality during drilling and protect unconventional reservoirs. Engineering (2021). https://doi.org/10.1016/j.eng.2021.11.014

    Article  Google Scholar 

  17. Teng, Q.; Yang, Z.M.; Liu, X.W.; Xu, X.: Seepage flow field measurement technology in the physical simulation of a low permeability reservoir. Petrol. Sci. Technol. 32, 983–990 (2014). https://doi.org/10.1080/10916466.2011.596885

    Article  Google Scholar 

  18. Huang, H.; Chen, L.; Dang, W.; Luo, T.; Sun, W.; Jiang, Z.; Tang, X.; Zhang, S.; Ji, W.; Shao, S.; Huang, Y.: Discussion on the rising segment of the mercury extrusion curve in the high pressure mercury intrusion experiment on shales. Mar. Petrol. Geol. 102, 615–624 (2019). https://doi.org/10.1016/j.marpetgeo.2019.01.027

    Article  Google Scholar 

  19. Song, H.: Engineering Fluid Mechanics. Springer, Singapore (2018)

    Book  Google Scholar 

  20. Zhong, H.Y.; He, Y.Y.; Yang, E.; Bi, Y.B.; Yang, T.B.: Modeling of microflow during viscoelastic polymer flooding in heterogenous reservoirs of Daqing Oilfield. J. Petrol. Sci. Eng. 210, 110091 (2022). https://doi.org/10.1016/J.PETROL.2021.110091

    Article  Google Scholar 

  21. Rong-Ze, Y.; Qun, L.; Zheng-Ming, Y.; Ya-Nan, B.: Nonlinear flow numerical simulation of an ultra-low permeability reservoir. Chin. Phys. Lett. 27, 74702 (2010). https://doi.org/10.1088/0256-307X/27/7/074702

    Article  Google Scholar 

  22. Farina, A., et al.: Non-Newtonian Fluid Mechanics and Complex Flows. Springe, Cham (2018)

    Book  Google Scholar 

  23. Zhao, Y.W.C.G.: Measurement and calculation of high-pressure interfacial tension of methane+nitrogen/water system. J. Univ. Petrol. (Ed. Nat. Sci.) 1, 75–78 (2002)

    Google Scholar 

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Acknowledgements

We would like to thank to National Natural Science Foundation of China (51804332, 51974355), Major scientific and technological projects of CNPC (ZD2019-184-003) and Program for Changjiang Scholars and Innovative Research Team in University (IRT1086) for their 436 support.

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Correspondence to Huajie Liu.

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Bu, Y., Xu, M., Liu, H. et al. Mechanism of Cement Stone Porosity and Permeability Structures for Downhole Fluid Packing. Arab J Sci Eng 47, 12223–12235 (2022). https://doi.org/10.1007/s13369-022-06943-x

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  • DOI: https://doi.org/10.1007/s13369-022-06943-x

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