Journal of Southwest Petroleum University(Science & Technology Edition) ›› 2023, Vol. 45 ›› Issue (6): 1-17.DOI: 10.11885/j.issn.1674-5086.2022.01.02.01

• GEOLOGY EXPLORATION •     Next Articles

Progress and Development Direction of Researches on Remaining Oil in Alluvial Fan Reservoir

ZHANG Yang1, LI Ji2, SONG Binghui3, HUANG Jinfu4, WU Xingwang1   

  1. 1. Faculty of Petroleum, Karamay Campus, China University of Petroleum (Beijing), Karamay, Xinjiang 834000, China;
    2. Experiment and Testing Institute, Xinjiang Oilfield Company, PetroChina, Karamay, Xinjiang 834000, China;
    3. Research Institute of Exploration and Development, Tarim Oilfield Company, PetroChina, Korla, Xinjiang 841000, China;
    4. Research Institute of Exploration and Development, Dagang Oilfield Company, PetroChina, Binhai New Area, Tianjin 300280, China
  • Received:2022-01-02 Published:2024-01-06

Abstract: Alluvial fan is the most important sedimentary facies types in oilfields with ultra-high water cut in China, which has complex hydrodynamic conditions, strong reservoir heterogeneity, low research degree and high development potential. Enhancing oil recovery and tapping remaining oil in alluvial fan reservoir is one of the key problems for stable production in oilfields with ultra-high water cut. In this paper, the research achievements of scholars at home and abroad in recent decades are comprehensively analyzed, and the research progress and development direction of remaining oil in alluvial fan reservoir are discussed. It is considered that the study of macro and micro reservoir characteristics of alluvial fan is more and more precise, the research methods of remaining oil are developing towards quantification and visualization. However, the study on the formation and mobilization mechanism of the remaining oil is still in the exploratory stage. Based on the above review, we conclude that three issues in the study of remaining oil in alluvial fan reservoir should be focused. The first is the relationship between macro-micro reservoir and macro-micro remaining oil, the second is the exploration and application of remaining oil production mechanism, and the third is the research method innovation of deep fusion of multi subjects.

Key words: alluvial fan, remaining oil, oilfields with ultra-high water cut, research progress, development direction

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