Experimental and Numerical Simulation Study on the Influence of Fracture Distribution on Gas Channeling in Ultralow-Permeability Reservoirs
Publication: Journal of Energy Engineering
Volume 148, Issue 1
Abstract
Fracture development in ultralow-permeability reservoirs results in gas channeling and lower oil recovery during flooding. In this study, the physical properties of a light oil- system were experimented, the physical properties subsequently simulated, and the effects of fracture distribution on gas channeling analyzed using the fracture mechanism model. Then, a geological reservoir model with added hydraulic fractures was used to predict injection. It is shown that gas channeling time was affected by the fracture angle and the distance between the production well fracture and injection well fracture. First, set (north) direction as 0°, keep the angle of the production well fracture unchanged, and only change the angle of the injection well fracture. In this case, a smaller angle of the gas injection well fracture resulted in more gas sweep area and gas channeling more delayed. Second, keep the injection well fracture angle constant and only change the angle of the production well fracture; in this regard, two cases are considered. The one is when the injection well fracture angle is smaller than 45°; in this case, the effect of distance between the production and injection fractures is more than production pressure difference, the distance between the production and injection fractures is greater, the gas sweep area is larger, and the gas channeling is later. The other is when the injection well fracture angle is greater than 45°, which results in a closer distance between the production well and injection well fractures and affects the gas channeling less than the production pressure difference. Third, the angle between the gas flooding direction (along ) and the production well fracture is greater, the production pressure difference is more homogeneous, and the gas channeling is later. In the geological model without connected fractures, flooding achieved gas channeling all over the study area after 7.5 years under the effect of distance between the production and injection fractures and the production pressure difference. The cumulative oil increase is 2.32 millon standard barrel (MSTB) after 20 years.
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Data Availability Statement
All data, models, and code generated or used during the study appear in the published article.
Acknowledgments
The authors are supported by the Scientific Research Program Funded by Shaanxi Provincial Education Department (Program No. 21JK0839), and Research Funds for the Key Laboratory of Petroleum Resources Research, Gansu Province (SZDKFJJ20201203), and the editor is highly appreciated.
References
Bao, B. 2013. “Study on main controlling factors of gas channeling.” [In Chinese.] Sci. Tech. Eng. 13 (9): 2348–2366.
Bou-Mikael, S., and F. S. Palmer. 1989. “Field-derived comparison of tertiary recovery mechanisms for miscible flooding of water drive and pressure-depleted reservoir in South Louisiana.” In Proc., SPE Annual Technical Conf. and Exhibition, 89–104. London: Society of Petroleum Engineers.
Cao, M., and Y. Gu. 2013. “Oil recovery mechanisms and asphaltene precipitation phenomenon in immiscible and miscible flooding processes.” Fuel 109 (Jul): 157–166. https://doi.org/10.1016/j.fuel.2013.01.018.
Chen, C., M. Balhoff, and K. K. Mohanty. 2017. “Effect of reservoir heterogeneity on primary recovery and huff ‘n’ puff recovery in shale-oil reservoirs.” SPE Reservoir Eval. Eng. 17 (3): 404–413. https://doi.org/10.2118/164553-PA.
Chen, Q., L. Zhang, and S. Pu. 2007. “Productivity characteristics of horizontal wells in low permeability reservoirs with deformed media.” Acta Petrol Sin. 28 (1): 107–111.
Duan, G., R. Hou, L. Zhao, F. Ma, and X. Zhang. 2016. “Determination and controlling of gas channel in immiscible flooding.” J. Energy Inst. 89 (1): 12–20. https://doi.org/10.1016/j.joei.2015.01.014.
Gamadi, T. D., F. Elldakli, and J. Sheng. 2014. “Compositional simulation evaluation of EOR potential in shale oil reservoirs by cyclic natural gas injection.” In Proc., URTEC 1922690 Presented at the SPE/AAPG/SEG Unconventional Resources Technology Conf. Tulsa, OK: American Association of Petroleum Geologists.
Guo, P., Y. Huang, and L. Li. 2013. “Influence of permeability and pressure on displacement efficient.” [In Chinese.]. Fault-Block Oil Gas Field 20 (8): 769–772.
Heidari, P., R. Kharrat, N. Alizadeh, and M. H. Ghazanfari. 2013. “A comparison of WAG and SWAG processes: Laboratory and simulation studies.” Energy Sources Part A 35 (23): 2225–2232. https://doi.org/10.1080/15567036.2010.532189.
Huang, T., X. Zhou, J. Yang, Z. Liao, and H. Zeng. 2017. “ flooding strategy to enhance heavy oil recovery.” Petroleum 3 (1): 68–78. https://doi.org/10.1016/j.petlm.2016.11.005.
Javaheri, M., and K. Jessen. 2011. “Integration of counter-current relative permeability in the simulation of injection into saline aquifers.” Int. J. Greenhouse Gas Control 5 (5): 1272–1283. https://doi.org/10.1016/j.ijggc.2011.05.015.
Ju, S., S. Wu, S. Qin, L. Fan, and P. Li. 2013. “Modeling miscible flooding for enhanced oil recovery.” Pet. Sci. 9 (2): 192–198. https://doi.org/10.1007/s12182-012-0199-4.
Lashkarbolooki, M., M. Riazi, and S. Ayatollahi. 2018. “Experimental investigation of dynamic swelling and bond number of crude oil during carbonated water flooding; effect of temperature and pressure.” Fuel 214 (Feb): 135–143. https://doi.org/10.1016/j.fuel.2017.11.003.
Li, H., R. Qin, J. Li, H. Fan, K. Zhong, Z. Li, and X. Li. 2017. “Characteristics and distribution of cracks in carboniferous buried volcanic reservoirs of the Shixi oilfield.” [In Chinese.] Geol. Explor. 53 (6): 1219–1228.
Li, J. 2016. “Production characteristics and gas channeling law of near miscible flooding in low permeability beach bar sand reservoir.” [In Chinese.] Pet. Geol. Oilfield Dev. Daqing 35 (2): 110–115.
Li, M. 2012. “Study on gas channeling characteristics and influencing factors of injection reservoir.” J. Pet. Nat. Gas. 34 (3): 153–156.
Li, Y., M. Li, T. Lu, and F. Li. 2012. “Experimental study on foamy oil flow in porous media with orinoco belt heavy oil.” Energy Fuels 26 (10): 6332–6342. https://doi.org/10.1021/ef301268u.
Liao, X., and H. Zhao. 2014. “The evaluation of miscible displacement and storage effect in mature oil fields.” Pet. Sci. Tech. 32 (1): 8–14. https://doi.org/10.1080/10916466.2011.584100.
Ma, F., L. Li, J. Li, X. Zhang, B. Chen, H. Wu, and J. Wu. 2020. “Study on influencing factors of fracture interference in fracture-cave carbonate reservoirs at micro scale.” [In Chinese.] Complex Hydrocarbon Reservoir 13 (4): 46–50.
Moortgat, J., A. Firoozabadi, Z. Li, and R. O. Espósito. 2013. “ injection in vertical and horizontal cores: Measurements and numerical simulation.” SPE J. 18 (2): 331–344. https://doi.org/10.2118/135563-PA.
Pang, Q., J. Ba, and M. C. José. 2021. “Characterization of gas saturation in tight-sandstone reservoirs with rock-physics templates based on seismic Q.” J. Energy Eng. 147 (3): 04021011. https://doi.org/10.1061/(ASCE)EY.1943-7897.0000761.
Saleem, Q. T., A. C. Tariq, and K. M. Muhammad. 2012. “Comparative study of FAWAG and SWAG as an effective EOR technique for a Malaysian field.” Res. J. App. Sci. Eng. Technol. 4 (6): 645–648.
Sheng, J. 2015a. “Enhanced oil recovery in shale reservoirs by gas injection.” J. Nat. Gas Sci. Eng. 22 (Jan): 252–259. https://doi.org/10.1016/j.jngse.2014.12.002.
Sheng, J. 2015b. “Increase liquid oil production by huff-n-puff of produced gas in shale gas condensate reservoirs.” J. Unconv. Oil Gas Resour. 11 (Sep): 19–26. https://doi.org/10.1016/j.juogr.2015.04.004.
Sui, Y., Q. Wang, and J. Chen. 2006. “Interfacial tension experiment of oil and water, oil and gas for CO2 injected reservoir fluid system.” [In Chinese.] J. China Universal Pet. 30 (5): 109–112.
Taghavinejad, A., and M. Sharif. 2021. “Investigation of rock properties distribution effect on pressure transient analysis of naturally fractured reservoirs.” J. Pet. Sci. Eng. 204 (Sep): 108714. https://doi.org/10.1016/j.petrol.2021.108714.
Torabi, F., and K. Asghari. 2010. “Effect of operating pressure matrix permeability and connate water saturation on performance of huff-n-puff process in matrix fracture experimental model.” Fuel 89 (10): 2985–2990. https://doi.org/10.1016/j.fuel.2010.05.020.
Torabi, F., A. Q. Firouz, A. Karousi, and K. Asghai. 2012. “Comparative evaluation of immiscible, near miscible, and miscible huff-n-puff to enhance oil recovery from a single matrix-fracture system.” Fuel 93 (Mar): 443–453. https://doi.org/10.1016/j.fuel.2011.08.037.
Tovar, F. D., O. Eid, A. Graue, and D. S. Schechter. 2014. “Experimental investigation of enhanced recovery in unconventional liquid reservoirs using : A look ahead to the future of unconventional EOR.” In Proc., SPE Unconventional Resources Conf. London: Society of Petroleum Engineers.
Wang, H., W. Liao, J. Dou, B. Shang, H. Ye, F. Zhao, L. Liao, and M. Chen. 2014. “Potential evaluation of sequestration and enhanced oil recovery of low permeability reservoir in the Junggar Basin, China.” Energy Fuels 28 (5): 3281–3291. https://doi.org/10.1021/ef4025068.
Wang, L., F. Bu, and D. Wu. 2010. “Research status and development prospect of miscible flooding enhanced oil recovery.” [In Chinese.] Petrochem. Ind. Appl. 29 (2): 4–7.
Wang, N., D. Wu, and B. Zhang. 2013a. “Experiment and effect evaluation of miscible displacement in extra-low permeability reservoir.” [In Chinese.] J. JPI 35 (4): 136–139.
Wang, Q., K. Huang, and Q. Deng. 2013b. “Permeability field characteristics and well layout optimization of injection-production system in Bohai M oilfield.” [In Chinese.] J. Southwest Pet. Univ. (Sci. Technol. Ed.) 35 (5): 99–108.
Yang, H., G. Yu, and J. Jiang. 2015. “Quantitative experimental study on the effect of heterogeneous gas channeling on flooding.” [In Chinese.] J. Petrochem. Univ. 28 (5): 55–59.
Yin, S., T. Tian, and Z. Wu. 2019. “Developmental characteristics and distribution law of fractures in a tight sandstone reservoir in a low-amplitude tectonic zone, eastern Ordos Basin, China.” Geol. J. 54 (6): 1546–1562.
Yu, W., H. R. Lashgari, and K. Sepehrnoori. 2014. “Simulation study of huff-n-puff process in Bakken tight oil reservoirs.” Geol. J. 54 (6): 1546–1562.
Yu, W., H. R. Lashgari, K. Wu, and S. Kamy. 2015. “ injection for enhanced oil recovery in Bakken tight oil reservoirs.” Fuel 159 (Nov): 354–363. https://doi.org/10.1016/j.fuel.2015.06.092.
Zhang, C., and H. Chen. 2014. “Application of supercritical carbon dioxide in unconventional oil-gas reservoirs.” [In Chinese.] Petrochem. Ind. Appl. 33 (9): 57–59.
Zhang, J., H. Zhang, L. Ma, Y. Liu, and L. Zhang. 2020. “Performance evaluation and mechanism with different flooding modes in tight oil reservoir with fractures.” J. Pet. Sci. Eng. 188 (May): 106950. https://doi.org/10.1016/j.petrol.2020.106950.
Zhang, K., N. Jia, S. Li, and L. Liu. 2018a. “Thermodynamic phase behavior and miscibility of confined fluids in nanopores.” Chem. Eng. J. 351 (Nov): 1115–1128. https://doi.org/10.1016/j.cej.2018.06.088.
Zhang, K., N. Jia, H. Zeng, and P. Luo. 2017. “A new diminishing interface method for determining the minimum miscibility pressures of light oil- systems in bulk phase and nanopores.” Energy Fuels 31 (11): 12021–12034. https://doi.org/10.1021/acs.energyfuels.7b02439.
Zhang, K., L. Tian, and L. Liu. 2018b. “A new analysis of pressure dependence of the equilibrium interfacial tensions of different light crude oil- systems.” Int. J. Heat Mass Transfer 121 (Jun): 503–513. https://doi.org/10.1016/j.ijheatmasstransfer.2018.01.014.
Zhang, Y., W. Gao, and Q. You. 2019. “Smart mobility control agent for enhanced oil recovery during flooding in ultra-low permeability reservoirs.” Fuel 241 (Apr): 442–450. https://doi.org/10.1016/j.fuel.2018.12.069.
Zhang, Z., S. Yao, L. Zhang, Y. Mei, and H. Zeng. 2018c. “Prediction of adsorption isotherms of multicomponent gas mixtures in tight porous media by the oil-gas-adsorption three phase vacancy solution model.” Energy Fuels 32 (12): 12166–12173. https://doi.org/10.1021/acs.energyfuels.8b02762.
Zhao, F., W. Liao, and D. Yin. 2014a. “Evaluation of enhanced oil recovery and sequestration potential in low permeability reservoirs, Yanchang Oilfield, China.” J. Energy Inst. 87 (4): 306–313. https://doi.org/10.1016/j.joei.2014.03.031.
Zhao, L., L. Zhang, R. Hou, and J. Cao. 2014b. “Profile improvement during flooding in ultra-low permeability reservoirs.” Pet. Sci. 11 (2): 279–286. https://doi.org/10.1007/s12182-014-0341-6.
Zhou, X., W. Z. Yuan, and Z. Zhang. 2019. “Performance evaluation of flooding process in tight oil reservoir via experimental and numerical simulation studies.” Fuel 236: 730–746. https://doi.org/10.1016/j.fuel.2018.09.035.
Zhu, H., Y. Ju, Y. Qi, C. Huang, and L. Zhang. 2018. “Impact of tectonism on pore type and pore structure evolution in organic-rich shale: Implications for gas storage and migration pathways in naturally deformed rocks.” Fuel 228: 272–289. https://doi.org/10.1016/j.fuel.2018.04.137.
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Received: Jun 10, 2021
Accepted: Sep 9, 2021
Published online: Oct 22, 2021
Published in print: Feb 1, 2022
Discussion open until: Mar 22, 2022
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