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Experimental Study on Temporary Plugging and Unblocking Performance of Water-Soluble Preformed Gel for Specific Shale Reservoirs

  • INNOVATIVE TECHNOLOGIES OF OIL AND GAS
  • Published:
Chemistry and Technology of Fuels and Oils Aims and scope

Shale gas reservoirs usually have well-developed fractures and joints, and the fracturing development process is prone to forming complex fracture networks near the wellbore, which is not conducive to the effective migration and efficient development of shale gas. The development of temporary plugging agents related to shale fracturing reservoir transformation is a key technology to solve this problem in the shale gas development process. Therefore, a water-soluble preformed gel temporary plugging agent was developed, and its expansion/swelling characteristics and temporary plugging performance were analyzed through experiments. At the same time, experimental evaluation was conducted on its unblocking performance. Research has found that although there are differences in the swelling rate of temporary plugging agents at different stages, they gradually increase during plugging operations. The volume of the temporary plugging agent expanded nearly 8.24 times throughout the entire experimental process. In addition, temporary plugging agents can temporarily seal micro fractures and rapidly expand hydraulic fractures, thereby significantly improving shale gas recovery rate. The shale gas recovery rate when temporary plugging agents are used in fracturing operations is about 12.3% higher than when temporary plugging agents are not used. In addition, the increase in working fluid temperature and the concentration of surfactants will mostly stimulate the activity of water molecules, thereby stimulating the hydrolysis of temporary blocking agents in microcracks. Taking into account the development cost and efficiency, it is reasonable to control the temperature of the working fluid and the concentration of surfactant during the unblocking process after the fracturing operation between 110-140°C and 0.75 g/m3, respectively. In order to provide technical support and design basis for the efficient development of shale gas through this study.

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References

  1. Liu, H., Wang, F., Wang, Y., et al. Oil well perforation technology: status and prospects. Petroleum exploration and decelopment, 2014, 41(6), 731-737.

    CAS  Google Scholar 

  2. Guo, X., Hu, D., Wei, X., et al. Main controlling factors on shale fractures and their influences on production capacity in Jiaoshiba area, the Sichuan Basin. Oil Gas Geol., 2016, 37(6), 799-808.

    Google Scholar 

  3. Biao, F., Liu, H., Zhang, J., et al. A numerical study of fracture initiation pressure under helical perforation conditions. Journal of University of Science & Technology of China, 2011, 41(3), 219-226.

    Google Scholar 

  4. Zhang, G., Chen, M., Yin, Y., et al. Study on influence of perforation on formation fracturing pressure. Chinese Journal of Rock Mechanics and Engineering, 2003, 22(1), 40-44.

    Google Scholar 

  5. Li, Q., Han, Y., Liu, X., et al. Hydrate as a by-product in CO2 leakage during the long-term sub-seabed sequestration and its role in preventing further leakage. Environmental Science and Pollution Research, 2022, 29(51), 77737-77754.

    Article  CAS  PubMed  Google Scholar 

  6. Zhu, H., Deng, J., Liu, S., et al. A prediction model for the hydraulic fracture initiation pressure in oriented perforation. Acta Petrolei Sinica, 2013, 34(3), 556-562.

    Google Scholar 

  7. Li, Q., Wang, F., Wang, Y., et al. Experimental investigation on the high-pressure sand suspension and adsorption capacity of guar gum fracturing fluid in low-permeability shale reservoirs: factor analysis and mechanism disclosure. Environmental Science and Pollution Research, 2022, 29(35), 53050-53062.

    Article  CAS  PubMed  Google Scholar 

  8. Liu, Y.F., Tang, Y.F., Chang, Q.H., et al. Development of a novel heat- and shear-resistant nano-silica gelling agent. Nanotechnology Reviews, 2022, 11(1), 2786-2799.

    Article  CAS  Google Scholar 

  9. Guo, T., Zhang, S., Qu, Z., et al. Experimental study of hydraulic fracturing for shale by stimulated reservoir volume. Fuel, 2014, 128, 373-380.

    Article  CAS  Google Scholar 

  10. Sayuri Kimoto, Fusao Oka, Tomohiko Fushita. A chemo-thermo-mechanically coupled analysis of ground deformation induced by gas hydrate dissociation. International Journal of Mechanical Sciences, 2010, 52(2):365-376.

    Article  Google Scholar 

  11. Kwon Sangki, Lee Changsoo. Thermal-Hydraulic-Mechanical coupling analysis using FLAC3D-TOUGH2 for an in situ heater test at Horonobe underground research laboratory. Geosystem Engineering, 2019, 22(5):289-298.

    Article  Google Scholar 

  12. Ding, W., Zeng, W., Wang, R., et al. Method and application of tectonic stress field simulation and fracture distribution prediction in shale reservoir. Earth Sci. Front., 2016, 23(2), 63-74.

    Google Scholar 

  13. Wang, R., Gong, D., Ding, W., et al. Brittleness evaluation of the lower cambrian niutitang shale in the upper yangtze region: a case study in the cengong block, guizhou province. Earth Sci. Front., 2016, 23(1), 87-95.

    Google Scholar 

  14. Zhao, S., Zhu, D., Bai, B. Experimental study of degradable preformed particle gel (DPPG) as temporary plugging agent for carbonate reservoir matrix acidizing to improve oil recovery. Journal of Petroleum Science and Engineering, 2021, 205, 108760.

    Article  CAS  Google Scholar 

  15. Zhou, H., Wu, X., Song, Z., et al. A review on mechanism and adaptive materials of temporary plugging agent for chemical diverting fracturing. Journal of Petroleum Science and Engineering, 2022, 212, 110256.

    Article  CAS  Google Scholar 

  16. Chen, Z., Wu, G., Zhou, J., et al. Optimization of degradable temporary plugging material and experimental study on stability of temporary plugging layer. Frontiers in Physics, 2023, 11, 1167215.

    Article  Google Scholar 

  17. Lai, N., Chen, Y., Wang, J., et al. Temporary Plugging Agent System for Thermally Induced Phase Change Fracturing in Shale Gas Reservoirs. Energy & Fuels, 2022, 36(12), 6270-6279.

    Article  CAS  Google Scholar 

  18. Lei, Z., Zhang, Y., Zhang, S., et al. Electricity generation from a three-horizontal-well enhanced geothermal system in the Qiabuqia geothermal field, China: Slickwater fracturing treatments for different reservoir scenarios. Renewable energy, 2020, 145, 65-83.

    Article  Google Scholar 

  19. Le, V., Tran, S. Hybrid Electrical-Submersible-Pump/Gas-Lift Application to Improve Heavy Oil Production: From System Design to Field Optimization. Journal of Energy Resources Technology, 2022, 144(8), 083006.

    Article  CAS  Google Scholar 

  20. Zhang, C., Wang, X., Jiang, C., et al. Numerical simulation of hot dry rock under the interplay between the heterogeneous fracture and stimulated reservoir volume. Journal of Cleaner Production, 2023, 414,137724.

    Article  CAS  Google Scholar 

  21. Gudala, M., Naiya, T., Govindarajan, S. Remediation of heavy oil transportation problems via pipelines using biodegradable additives: an experimental and artificial intelligence approach. SPE Journal, 2021, 26(02), 1050-1071.

    Article  CAS  Google Scholar 

  22. Moska, R., Labus, K., Kasza, P. Hydraulic fracturing in enhanced geothermal systems—field, tectonic and rock mechanics conditions-a review. Energies, 2021, 14(18), 5725.

    Article  Google Scholar 

  23. Pandey, SN., Chaudhuri, A., Kelkar, S. A coupled thermo-hydro-mechanical modeling of fracture aperture alteration and reservoir deformation during heat extraction from a geothermal reservoir. Geothermics, 2017, 65, 17-31.

    Article  Google Scholar 

  24. Song, G., Song, X., Xu, F., et al. Numerical parametric investigation of thermal extraction from the enhanced geothermal system based on the thermal-hydraulic-chemical coupling model. Journal of Cleaner Production, 2022, 352, 131609.

    Article  CAS  Google Scholar 

  25. Sun, Z., Jiang, C., Wang, X., et al. Combined effects of thermal perturbation and in-situ stress on heat transfer in fractured geothermal reservoirs. Rock Mechanics and Rock Engineering, 2021, 54, 2165-81.

    Article  Google Scholar 

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Authors and Affiliations

  1. Chuanqing Drilling Engineering Company Limited, Chengdu, China

    Yanchao Li, Jianguo Shen & Junxiang Li

  2. School of Electrical Engineering and Information, Southwest Petroleum University, Chengdu, China

    Zhe Zhang

Authors
  1. Yanchao Li
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  2. Jianguo Shen
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  3. Junxiang Li
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  4. Zhe Zhang
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Correspondence to Zhe Zhang.

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Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 1, pp. 120–126, January–February, 2024.

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Li, Y., Shen, J., Li, J. et al. Experimental Study on Temporary Plugging and Unblocking Performance of Water-Soluble Preformed Gel for Specific Shale Reservoirs. Chem Technol Fuels Oils 60, 157–166 (2024). https://doi.org/10.1007/s10553-024-01667-0

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  • DOI: https://doi.org/10.1007/s10553-024-01667-0

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