Special Oil & Gas Reservoirs ›› 2023, Vol. 30 ›› Issue (6): 1-9.DOI: 10.3969/j.issn.1006-6535.2023.06.001

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Research Progress of Nanofluid Phase Permeability Curves

Qu Ming1, Sun Haitong2, Liang Tuo3, Yan Ting4, Hou Jirui2, Jiao Hongyan5, Deng Song6, Yang Erlong7   

  1. 1. NEPU Sanya Offshore Oil & Gas Research Institute, Sanya, Hainan 572024, China;
    2. China University of Petroleum (Beijing), Beijing 102249, China;
    3. Xi'an Shiyou University, Xi'an Shaanxi 213164, China;
    4. PetroChina Changqing Oilfield Company, Xi'an, Shaanxi 710018, China;
    5. Sinopec Shengli Oilfield Company, Dongying, Shandong 257068, China;
    6. Changzhou University, Changzhou, Jiangsu 213164, China;
    7. Key Laboratary for Improving Oil and Gas Recovery (Northeast Petroleum University), Ministry of Education, Daqing, Heilongjiang 163319, China
  • Received:2022-09-18 Revised:2023-09-21 Online:2023-12-25 Published:2024-01-19

Abstract: Nanoparticles are widely used in oil and gas reservoir development because of their extremely small size, large specific surface area and low dosage, but little research has been reported on the phase permeability curves of nanofluids. Therefore, through literature research, the effects of factors such as the number of capillary, wettability, temperature and net effective pressure on the shape of phase permeability curves before and after the oil displacement by nanofluids are reviewed, the mathematical modeling methods for constructing the phase permeability curves are summarized and discussed, and the method of obtaining phase permeability curves that is applicable to nanofluids is preferred in combination with the characteristics of nanofluids. This study can provide certain theoretical references and guidance for the accurate acquisition of phase permeability curves of nanofluids, the establishment of numerical models of phase permeability and the in-depth study of the mechanism of oil displacement by nanofluids.

Key words: low-permeability reservoir, nanofluid, relative permeability curve, mathematical modeling

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