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Study on the Impact Pressure of Swirling-Round Supercritical CO 2 Jet Flow and Its Influencing Factors

Author

Listed:
  • Yulong Yang

    (Unconventional Petroleum Research Institute, China University of Petroleum, Beijing 102200, China)

  • Han Liu

    (Engineering & Design Institute of CPOE, Offshore Engineering Company Ltd., CNPC, Beijing 100028, China)

  • Weixuan Mao

    (National Computer Network Emergency Response Technical Team, Coordination Center of China, Beijing 100029, China)

  • Zhaojie Song

    (Unconventional Petroleum Research Institute, China University of Petroleum, Beijing 102200, China)

  • Haizhu Wang

    (College of Petroleum Engineering, China University of Petroleum, Beijing 102200, China)

Abstract

Supercritical carbon dioxide (SC-CO 2 ) jet is capable of decreasing the threshold pressure of rock breakage and mitigating formation damage, owing to its low viscosity, high diffusivity, and extremely-low surface tension. The swirling-round jet holds the advantages of both a swirling jet and a round jet. Therefore, the comprehensive technique, swirling-round SC-CO 2 (SR-SC-CO 2 ) jet, is expected to substantially enhance rock-breaking efficiency. However, theoretical analysis of the flow field characteristics of SR-SC-CO 2 has not been reported yet. This work aims to lay a theoretical foundation for employing SR-SC-CO 2 in drilling and fracturing. The flow field is simulated using Naiver-Stokes equations and the RNG k-ε turbulence model. Sensitivity analysis, regarding pressure drop of the nozzle, confining pressure, fluid temperature, jetting distance, the diameter of the nozzle’s central hole, and grooving area, are performed. We show that the combined swirling-round SC-CO 2 jet flow could maintain a relatively larger axial as well as tangential velocity compared to a single approach of swirling jet or round jet, enabling one to acquire a deeper oillet and expand the perforation area effectively. The simulation results substantiate the enormous potential of SR-SC-CO 2 in improving rock-breaking efficiency and clarify the influence of relevant parameters on the impact pressure of the jet flow.

Suggested Citation

  • Yulong Yang & Han Liu & Weixuan Mao & Zhaojie Song & Haizhu Wang, 2020. "Study on the Impact Pressure of Swirling-Round Supercritical CO 2 Jet Flow and Its Influencing Factors," Energies, MDPI, vol. 14(1), pages 1-15, December.
  • Handle: RePEc:gam:jeners:v:14:y:2020:i:1:p:106-:d:469185
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    References listed on IDEAS

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    1. Muhammad Ali & Husna Hayati Jarni & Adnan Aftab & Abdul Razak Ismail & Noori M. Cata Saady & Muhammad Faraz Sahito & Alireza Keshavarz & Stefan Iglauer & Mohammad Sarmadivaleh, 2020. "Nanomaterial-Based Drilling Fluids for Exploitation of Unconventional Reservoirs: A Review," Energies, MDPI, vol. 13(13), pages 1-30, July.
    2. Daniel J. Rozell & Sheldon J. Reaven, 2012. "Water Pollution Risk Associated with Natural Gas Extraction from the Marcellus Shale," Risk Analysis, John Wiley & Sons, vol. 32(8), pages 1382-1393, August.
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    Cited by:

    1. Liang Xu & Tao Yang & Yanhua Sun & Lei Xi & Jianmin Gao & Yunlong Li, 2021. "Flow and Heat Transfer Characteristics of a Swirling Impinging Jet Issuing from a Threaded Nozzle of 45 Degrees," Energies, MDPI, vol. 14(24), pages 1-26, December.
    2. Chao Pu & Zhenjian Liu & Ge Pu, 2022. "On the Factors of Impact Pressure in Supercritical CO 2 Phase-Transition Blasting—A Numerical Study," Energies, MDPI, vol. 15(22), pages 1-15, November.
    3. Shuaishuai Sun & Yongbin Wu & Xiaomei Ma & Pengcheng Liu & Fujian Zhang & Peng Liu & Xiaokun Zhang, 2023. "Feasibility and Mechanism of Deep Heavy Oil Recovery by CO 2 -Energized Fracturing Following N 2 Stimulation," Energies, MDPI, vol. 16(3), pages 1-18, January.

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