Impact of Near-Wellbore Stress in Wellbore Integrity Analysis: Wellbore Fracture Strengthening Approach
Keywords:
Wellbore, Fracture, Drilling, Drilling fluid, Formation, Model
Abstract
The analysis of borehole stability during drilling is particularly important in the oil and gas industry. Loss of borehole stability during drilling often increases drilling costs, reduces drilling efficiency and even causes the bottom hole to collapse. Regardless of the drilling method used (for example, under-balanced or overbalanced), if borehole is constant throughout the drilling process, drilling integrity problems are unlikely to occur during oil and gas production. The design and implementation of drilling operation is the subject of most research and is a priority for most drilling projects, so it is important to understand the factors that affect borehole stability during drilling. In this study, an analytical model is developed for the purpose of performing quantitative research on the subject of wellbore fortification. The model is appropriate for use with wellbore walls that have small fractures. The development of this model is grounded in the theory of linear elastic fracture mechanics, which functions as the basis for this foundation. The small fracture model does not take into consideration the pressure gradient that exists within the fracture because of the short length of the small fracture. Nevertheless, this model does take into consideration the effect that near-wellbore stress concentration has on the strengthening of the wellbore. The model is validated by comparison to a more basic fracture model that already exists in the research literature.
References
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Azim, R. A. (2020). A poroelastic numerical model for simulation of hydraulic fracture propagation: application of Upper Safa Formation-Western Desert-Egypt. Petroleum Research, 5(1), 39-51.
Biao, M., Xiaolin, P., Zhengguo, Z., Hao, W., & Wenxin, D. (2019). Laboratory study on core fracturing simulations for wellbore strengthening. Hindawi Geofluids, 18, 7942064.
Boyun, G., Liqun, S., & Shuxian, J. (2018). The maximum permissible fracturing pressure in shale gas wells for wellbore cement sheath integrity. Journal of Natural Gas Science and Engineering, 56, 324-332.
Cao, P., Karpyn, Z. T., & Li, L. (2015). Self-healing of cement fractures under dynamic flow of CO2-rich brine. Water Resour. Res., 51(6), 4684-4701.
Cook, J., Growcock, F., Guo, Q., Hodder, M., & Van Oort, E. (2011). Stabilizing the wellbore to prevent lost circulation. Oilfield Rev., 23, 26–35.
Dupriest, F. E. (2005). Fracture Closure Stress (FCS) and Lost Returns Practices. Presented at the SPE/IADC Drilling Conference, Society of Petroleum Engineers. https://doi.org/10.2118/92192-MS
Feng, Y. (2016). Fracture Analysis for Lost Circulation and Wellbore Strengthening. Ph.D. Dissertation, The University of Texas At Austin.
Feng, Y., Arlanoglu, C., Podnos, E., Becker, E., & Gray, K. E. (2015). Finite-Element Studies of Hoop-Stress Enhancement for Wellbore Strengthening. SPE Drill. Complet., 30, 38–51. https://doi.org/10.2118/168001-PA
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Gray, K. E., Podnos, E., & Becker, E. (2009). Finite-element studies of near-wellbore region during cementing operations: Part 1. SPE Drilling and Completion Journal, 24, 127-136.
Growcock, F. B., Kaageson-Loe, N., Friedheim, J., Sanders, M. W., & Bruton, J. (2009). Wellbore Stability, Stabilization and Strengthening. Presented at the Offshore Mediterranean Conference and Exhibition, Offshore Mediterranean Conference.
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Guo, Q., Cook, J., Way, P., Ji, L., & Friedheim, J. E. (2014). A Comprehensive Experimental Study on Wellbore Strengthening. Presented at the IADC/SPE Drilling Conference and Exhibition, Society of Petroleum Engineers. https://doi.org/10.2118/167957-MS
Hassanvand, M., Moradi, S., Fattahi, M., Zargar, G., & Kamari, M. (2018). Estimation of rock uniaxial compressive strength for an Iranian carbonate oil reservoir: modeling vs. artificial neutral network application. Petroleum Research, 3(4), 336-345.
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Jaeger, J., Cook, N. G., & Robert, Z. (2007). Fundamentals of Rock Mechanics. Wiley-Blackwell, p. 489-451.
Kamphuis, H., Davies, D. R., & Roodhart, I. P. (1993). New simulator for the calculation of in-situ temperature profile during well stimulation fracturing treatment. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 30(6), 343.
Lian, Z., Yu, H., Lin, T., & Guo, J. (2015). A study on casing deformation failure during multi-stage hydraulic fracturing for the stimulated reservoir volume of horizontal shale wells. Journal of Natural Gas Science and Engineering, 23, 538-546.
Montilva, J., Mota, J., & Billa, R. (2012). Onshore US MPD Use by an Operator. Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, Milan, Italy, March. https://doi.org/10.2118/156909-MS
Nelson, E., Meyer, J., Hillis, R., & Mildren, S. (2005). Transverse drilling-induced tensile fractures in the West Tuna area, Gippsland Basin, Australia: Implications for the in situ stress regime. International Journal of Rock Mechanics, 42(3), 361-371.
Nie, X., Zou, C., Pan, L., Huang, Z., & Liu, D. (2013). Fracture analysis and determination of in-situ stress direction from resistivity and acoustic image logs and core data in the Wenchuan Earthquake Fault Scientific Drilling Borehole-2 (50-1370 m). Tectonophysics, 593, 161-171.
Panjwani, S., Mcdaniel, J., & Nikolaou, M. (2017). Improvement of zonal isolation in horizontal shale gas wells: a data driven model-based approach. Journal of Natural Gas Science and Engineering, 47, 101-113.
Renshaw, C. E., & Pollard, D. D. (1995). An experimentally verified criterion for propagation across unbounded frictional interfaces in brittle, linear elastic-materials. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 32(3), 237– 249.
Richard, J., Davies, S. A., & Robert, S. (2014). Oil and Gas wells and their integrity: implications for shale and unconventional resource exploitation. Mar. Pet. Geol., 56, 239-254.
Salehi, S. (2012). Numerical simulations of fracture propagation and sealing: Implications for wellbore strengthening. Missouri University of Science and Technology.
Settari, A., & Sen, V. (2007). The role of geomechanics in integrated reservoir modeling. Lead. Edge, 26(5), 622-627.
Shadravan, A., Schubert, J., Amani, M., & Teodoriu, C. (2015). Using fatigue-failure envelop for cement-sheath-integrity evaluation. SPE Drill. Complet., 30(1), 68-75.
Shahbazi, K., Zarei, A. H., Shahbazi, A., & Tanha, A. A. (2020). Investigation of production depletion rate effect on the near-wellbore stresses in the two Iranian southwest oilfields. Petroleum Research, 5, 347-361.
Shahri, M. P., Oar, T. T., Safari, R., Karimi, M., & Mutlu, U. (2015). Advanced Semianalytical Geomechanical Model for Wellbore-Strengthening Applications. SPE J., 20, 1276-1286. https://doi.org/10.2118/167976-PA
van Oort, E., & Razavi, O. S. (2014). Wellbore Strengthening and Casing Smear: The Common Underlying Mechanism. Presented at the IADC/SPE Drilling Conference and Exhibition, Society of Petroleum Engineers. https://doi.org/10.2118/168041-MS
Wang, H. (2007). Near wellbore stress analysis for wellbore strengthening. University of Wyoming.
Wang, H., Soliman, M. Y., & Towler, B. F. (2009). Investigation of Factors for Strengthening a Wellbore by Propping Fractures. SPE Drill. Complet., 24, 441–451. https://doi.org/10.2118/112629-PA
Young, R., & Maxwell, S. (1992). Seismic characterization of a highly stressed rock mass using tomographic imaging and induced seismicity. J. Geophys. Res.: Solid Earth, 97(B9), 12361-12373.
Zhang, S., Li, X., & Wang, H. (2020). Experimental study on the geomechanical properties and failure behaviour of interbedded shale during SAGD operation. Petroleum Research, 6, 39-51.
Zhao, C., Li, J., Liu, G., & Zhang, X. (2020). Analysis of well stress with the effect of natural fracture nearby wellbore during hydraulic fracturing in shale gas wells. Journal of Petroleum Science and Engineering, 188, 106885.
Zhong, R., Miska, S., & Yu, M. (2017a). Modeling of near-wellbore fracturing for wellbore strengthening. J. Nat. Gas Sci. Eng., 38, 475–484. https://doi.org/10.1016/j.jngse.2017.01.009
Zoback, M. D. (2010). Reservoir Geomechanics. Cambridge University Press, Cambridge.
Nejati, M., Aminzadeh, A., Amann, F., Saar, M. O., & Driesner, T. (2020). Mode I fracture growth in anisotropic rocks: Theory and experiment. International Journal of Solids and Structures, 195, 74-90. https://doi.org/10.1016/j.ijsolstr.2020.03.004
Detournay, E. (2016). Mechanics of hydraulic fractures. Annual Review of Fluid Mechanics, 48(1), 311-339.
Chong, K. P., Kuruppu, M. D., & Kuszmaul, J. S. (1987). Fracture toughness determination of layered materials. Eng. Fract. Mech., 28(1), 43-54.
Wang, Z., & Nielsen, J. Y. C. (2017). Analysis of thermally induced stresses for effective remediation of lost circulation through drilling induced fractures. In: International Conference on Offshore Mechanics and Arctic Engineering (Vol. 57762). American Society of Mechanical Engineers. https://asmedigitalcollection.asme.org/OMAE/proceedings-abstract/OMAE2017/57762/V008T11A009/282453
Yin, Q., Yang, J., Li, Z., Huang, Y., Luo, M., Wang, B., Tyagi, M., Xu, G., & Zhao, X. (2020). A field case study of managed pressure drilling in offshore ultra-high-pressure high temperature exploration well in the south China sea. SPE Drill. Complet., 35(4), 503–524. https://doi.org/10.2118/191060-PA.
Feng, Y., & Gray, K. E. (2016). A fracture-mechanics-based model for wellbore strengthening applications. J. Nat. Gas Sci. Eng., 29, 392–400.
He, W., Hayatdavoudi, A., Chen, K., Sawant, K., Zhang, Q., & Zhang, C. (2019). Enhancement of plastering effect on strengthening wellbore by optimizing particle size distribution of wellbore strengthening materials. J. Energy Resour. Technol., 141(12).
Yang, M., Li, M. C., Wu, Q., Growcock, F. B., & Chen, Y. (2020). Experimental study of the impact of filter cakes on the evaluation of LCMs for improved lost circulation preventive treatments. J. Petrol. Sci. Eng., 191, 107152. https://doi.org/10.1016/j. petrol.2020.107152
Razavi, S.O. (2016). Experimental Investigation of the Wellbore Strengthening Phenomenon. The University of Texas at Austin, USA.
Zhong, R., Miska, S., Yu, M., Meng, M., Ozbayoglu, E., & Takach, N. (2019). Experimental investigation of fracture-based wellbore strengthening using a large-scale true triaxial cell. Journal of Petroleum Science and Engineering, 178, 691-699. https://doi.org/10.1016/j.petrol.2019.03.081
González-Velázquez, J. L. (2021). Chapter 2 - Linear elastic fracture mechanics. In J. L. González-Velázquez (Ed.), A Practical Approach to Fracture Mechanics (pp. 35-74). Elsevier. https://doi.org/10.1016/B978-0-12-823020-6.00002-5.
Zhong, R., Miska, S., & Yu, M. (2017b). Modeling of near-wellbore fracturing for wellbore strengthening. J. Nat. Gas Sci. Eng., 38, 475–484. https://doi.org/10.1016/j.jngse.2017.01.009
Arlanoglu, C., Feng, Y., Podnos, E., Becker, E., & Gray, K. E. (2014). Finite Element Studies of Wellbore Strengthening. Presented at the IADC/SPE Drilling Conference and Exhibition, Society of Petroleum Engineers. https://doi.org/10.2118/168001-MS
Aston, M. S., Alberty, M. W., Duncum, S. D., Bruton, J. R., Friedheim, J. E., Sanders, M. W. (2007). A New Treatment for Wellbore Strengthening in Shale. Presented at the SPE Annual Technical Conference and Exhibition, Society of Petroleum Engineers. https://doi.org/10.2118/110713-MS
Atkinson, C. & Eftaxiopoulos, D. A. (1996). A plane model for the stress field around an inclined, cased and cemented wellbore. Int. J. Numer. Anal. Methods Geomech., 20(8), 549-569.
Azim, R. A. (2020). A poroelastic numerical model for simulation of hydraulic fracture propagation: application of Upper Safa Formation-Western Desert-Egypt. Petroleum Research, 5(1), 39-51.
Biao, M., Xiaolin, P., Zhengguo, Z., Hao, W., & Wenxin, D. (2019). Laboratory study on core fracturing simulations for wellbore strengthening. Hindawi Geofluids, 18, 7942064.
Boyun, G., Liqun, S., & Shuxian, J. (2018). The maximum permissible fracturing pressure in shale gas wells for wellbore cement sheath integrity. Journal of Natural Gas Science and Engineering, 56, 324-332.
Cao, P., Karpyn, Z. T., & Li, L. (2015). Self-healing of cement fractures under dynamic flow of CO2-rich brine. Water Resour. Res., 51(6), 4684-4701.
Cook, J., Growcock, F., Guo, Q., Hodder, M., & Van Oort, E. (2011). Stabilizing the wellbore to prevent lost circulation. Oilfield Rev., 23, 26–35.
Dupriest, F. E. (2005). Fracture Closure Stress (FCS) and Lost Returns Practices. Presented at the SPE/IADC Drilling Conference, Society of Petroleum Engineers. https://doi.org/10.2118/92192-MS
Feng, Y. (2016). Fracture Analysis for Lost Circulation and Wellbore Strengthening. Ph.D. Dissertation, The University of Texas At Austin.
Feng, Y., Arlanoglu, C., Podnos, E., Becker, E., & Gray, K. E. (2015). Finite-Element Studies of Hoop-Stress Enhancement for Wellbore Strengthening. SPE Drill. Complet., 30, 38–51. https://doi.org/10.2118/168001-PA
Feng, Y., & Gray, K. E. (2017). Modeling lost circulation through drilling-induced fractures. SPE J., 20.
Gray, K. E., Podnos, E., & Becker, E. (2009). Finite-element studies of near-wellbore region during cementing operations: Part 1. SPE Drilling and Completion Journal, 24, 127-136.
Growcock, F. B., Kaageson-Loe, N., Friedheim, J., Sanders, M. W., & Bruton, J. (2009). Wellbore Stability, Stabilization and Strengthening. Presented at the Offshore Mediterranean Conference and Exhibition, Offshore Mediterranean Conference.
Gu, H., & Weng, X. (2010). Criterion for fractures crossing frictional interfaces at non-orthogonal angles. In: 44th US Rock Mechanics Symposium and 5th US-Canada Rock Mechanics Symposium, Salt Lake City, Utah, USA, 27–30 June.
Guo, Q., Cook, J., Way, P., Ji, L., & Friedheim, J. E. (2014). A comprehensive experimental study on wellbore strengthening. IADC/SPE paper 167957 presented at the 2014 IADC/SPE Drilling Conference and Exhibition held in Fort Worth, Texas, USA, March 4-6.
Guo, Q., Cook, J., Way, P., Ji, L., & Friedheim, J. E. (2014). A Comprehensive Experimental Study on Wellbore Strengthening. Presented at the IADC/SPE Drilling Conference and Exhibition, Society of Petroleum Engineers. https://doi.org/10.2118/167957-MS
Hassanvand, M., Moradi, S., Fattahi, M., Zargar, G., & Kamari, M. (2018). Estimation of rock uniaxial compressive strength for an Iranian carbonate oil reservoir: modeling vs. artificial neutral network application. Petroleum Research, 3(4), 336-345.
ISRM (2014). The ISRM suggested methods for rock characterization, resting and monitoring 2007-2014. In: Ulusay, R. (Ed.), The International Society for Rock Mechanics and Rock Engineering (p. 293). Springer.
Jaeger, J., Cook, N. G., & Robert, Z. (2007). Fundamentals of Rock Mechanics. Wiley-Blackwell, p. 489-451.
Kamphuis, H., Davies, D. R., & Roodhart, I. P. (1993). New simulator for the calculation of in-situ temperature profile during well stimulation fracturing treatment. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 30(6), 343.
Lian, Z., Yu, H., Lin, T., & Guo, J. (2015). A study on casing deformation failure during multi-stage hydraulic fracturing for the stimulated reservoir volume of horizontal shale wells. Journal of Natural Gas Science and Engineering, 23, 538-546.
Montilva, J., Mota, J., & Billa, R. (2012). Onshore US MPD Use by an Operator. Paper presented at the SPE/IADC Managed Pressure Drilling and Underbalanced Operations Conference and Exhibition, Milan, Italy, March. https://doi.org/10.2118/156909-MS
Nelson, E., Meyer, J., Hillis, R., & Mildren, S. (2005). Transverse drilling-induced tensile fractures in the West Tuna area, Gippsland Basin, Australia: Implications for the in situ stress regime. International Journal of Rock Mechanics, 42(3), 361-371.
Nie, X., Zou, C., Pan, L., Huang, Z., & Liu, D. (2013). Fracture analysis and determination of in-situ stress direction from resistivity and acoustic image logs and core data in the Wenchuan Earthquake Fault Scientific Drilling Borehole-2 (50-1370 m). Tectonophysics, 593, 161-171.
Panjwani, S., Mcdaniel, J., & Nikolaou, M. (2017). Improvement of zonal isolation in horizontal shale gas wells: a data driven model-based approach. Journal of Natural Gas Science and Engineering, 47, 101-113.
Renshaw, C. E., & Pollard, D. D. (1995). An experimentally verified criterion for propagation across unbounded frictional interfaces in brittle, linear elastic-materials. Int. J. Rock Mech. Min. Sci. Geomech. Abstr., 32(3), 237– 249.
Richard, J., Davies, S. A., & Robert, S. (2014). Oil and Gas wells and their integrity: implications for shale and unconventional resource exploitation. Mar. Pet. Geol., 56, 239-254.
Salehi, S. (2012). Numerical simulations of fracture propagation and sealing: Implications for wellbore strengthening. Missouri University of Science and Technology.
Settari, A., & Sen, V. (2007). The role of geomechanics in integrated reservoir modeling. Lead. Edge, 26(5), 622-627.
Shadravan, A., Schubert, J., Amani, M., & Teodoriu, C. (2015). Using fatigue-failure envelop for cement-sheath-integrity evaluation. SPE Drill. Complet., 30(1), 68-75.
Shahbazi, K., Zarei, A. H., Shahbazi, A., & Tanha, A. A. (2020). Investigation of production depletion rate effect on the near-wellbore stresses in the two Iranian southwest oilfields. Petroleum Research, 5, 347-361.
Shahri, M. P., Oar, T. T., Safari, R., Karimi, M., & Mutlu, U. (2015). Advanced Semianalytical Geomechanical Model for Wellbore-Strengthening Applications. SPE J., 20, 1276-1286. https://doi.org/10.2118/167976-PA
van Oort, E., & Razavi, O. S. (2014). Wellbore Strengthening and Casing Smear: The Common Underlying Mechanism. Presented at the IADC/SPE Drilling Conference and Exhibition, Society of Petroleum Engineers. https://doi.org/10.2118/168041-MS
Wang, H. (2007). Near wellbore stress analysis for wellbore strengthening. University of Wyoming.
Wang, H., Soliman, M. Y., & Towler, B. F. (2009). Investigation of Factors for Strengthening a Wellbore by Propping Fractures. SPE Drill. Complet., 24, 441–451. https://doi.org/10.2118/112629-PA
Young, R., & Maxwell, S. (1992). Seismic characterization of a highly stressed rock mass using tomographic imaging and induced seismicity. J. Geophys. Res.: Solid Earth, 97(B9), 12361-12373.
Zhang, S., Li, X., & Wang, H. (2020). Experimental study on the geomechanical properties and failure behaviour of interbedded shale during SAGD operation. Petroleum Research, 6, 39-51.
Zhao, C., Li, J., Liu, G., & Zhang, X. (2020). Analysis of well stress with the effect of natural fracture nearby wellbore during hydraulic fracturing in shale gas wells. Journal of Petroleum Science and Engineering, 188, 106885.
Zhong, R., Miska, S., & Yu, M. (2017a). Modeling of near-wellbore fracturing for wellbore strengthening. J. Nat. Gas Sci. Eng., 38, 475–484. https://doi.org/10.1016/j.jngse.2017.01.009
Zoback, M. D. (2010). Reservoir Geomechanics. Cambridge University Press, Cambridge.
Nejati, M., Aminzadeh, A., Amann, F., Saar, M. O., & Driesner, T. (2020). Mode I fracture growth in anisotropic rocks: Theory and experiment. International Journal of Solids and Structures, 195, 74-90. https://doi.org/10.1016/j.ijsolstr.2020.03.004
Detournay, E. (2016). Mechanics of hydraulic fractures. Annual Review of Fluid Mechanics, 48(1), 311-339.
Chong, K. P., Kuruppu, M. D., & Kuszmaul, J. S. (1987). Fracture toughness determination of layered materials. Eng. Fract. Mech., 28(1), 43-54.
Wang, Z., & Nielsen, J. Y. C. (2017). Analysis of thermally induced stresses for effective remediation of lost circulation through drilling induced fractures. In: International Conference on Offshore Mechanics and Arctic Engineering (Vol. 57762). American Society of Mechanical Engineers. https://asmedigitalcollection.asme.org/OMAE/proceedings-abstract/OMAE2017/57762/V008T11A009/282453
Yin, Q., Yang, J., Li, Z., Huang, Y., Luo, M., Wang, B., Tyagi, M., Xu, G., & Zhao, X. (2020). A field case study of managed pressure drilling in offshore ultra-high-pressure high temperature exploration well in the south China sea. SPE Drill. Complet., 35(4), 503–524. https://doi.org/10.2118/191060-PA.
Feng, Y., & Gray, K. E. (2016). A fracture-mechanics-based model for wellbore strengthening applications. J. Nat. Gas Sci. Eng., 29, 392–400.
He, W., Hayatdavoudi, A., Chen, K., Sawant, K., Zhang, Q., & Zhang, C. (2019). Enhancement of plastering effect on strengthening wellbore by optimizing particle size distribution of wellbore strengthening materials. J. Energy Resour. Technol., 141(12).
Yang, M., Li, M. C., Wu, Q., Growcock, F. B., & Chen, Y. (2020). Experimental study of the impact of filter cakes on the evaluation of LCMs for improved lost circulation preventive treatments. J. Petrol. Sci. Eng., 191, 107152. https://doi.org/10.1016/j. petrol.2020.107152
Razavi, S.O. (2016). Experimental Investigation of the Wellbore Strengthening Phenomenon. The University of Texas at Austin, USA.
Zhong, R., Miska, S., Yu, M., Meng, M., Ozbayoglu, E., & Takach, N. (2019). Experimental investigation of fracture-based wellbore strengthening using a large-scale true triaxial cell. Journal of Petroleum Science and Engineering, 178, 691-699. https://doi.org/10.1016/j.petrol.2019.03.081
González-Velázquez, J. L. (2021). Chapter 2 - Linear elastic fracture mechanics. In J. L. González-Velázquez (Ed.), A Practical Approach to Fracture Mechanics (pp. 35-74). Elsevier. https://doi.org/10.1016/B978-0-12-823020-6.00002-5.
Zhong, R., Miska, S., & Yu, M. (2017b). Modeling of near-wellbore fracturing for wellbore strengthening. J. Nat. Gas Sci. Eng., 38, 475–484. https://doi.org/10.1016/j.jngse.2017.01.009
Published
2024-02-13
How to Cite
Ukaeru, F. C., Igwilo, K., Chikwe, A., & Ubanozie, O. (2024). Impact of Near-Wellbore Stress in Wellbore Integrity Analysis: Wellbore Fracture Strengthening Approach. European Journal of Science, Innovation and Technology, 4(1), 187-206. Retrieved from https://ejsit-journal.com/index.php/ejsit/article/view/373
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Copyright (c) 2024 Frank Chinedu Ukaeru, Kevin Igwilo, Anthony Chikwe, Obibuike Ubanozie
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