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Volume 43 Issue 2
Mar.  2021
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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2021  >  43(2): 360-367
GAO Fenglin, WANG Chengxi, SONG Yan, CHEN Zhenhong, LIU Qingxin, LI Zhuo, JIANG Zhenxue, ZHANG Xinxin. Ar-ion polishing FE-SEM analysis of organic maceral identification[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2021, 43(2): 360-367. doi: 10.11781/sysydz202102360
Citation: GAO Fenglin, WANG Chengxi, SONG Yan, CHEN Zhenhong, LIU Qingxin, LI Zhuo, JIANG Zhenxue, ZHANG Xinxin. Ar-ion polishing FE-SEM analysis of organic maceral identification[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2021, 43(2): 360-367. doi: 10.11781/sysydz202102360
shu

Ar-ion polishing FE-SEM analysis of organic maceral identification

doi: 10.11781/sysydz202102360
  • 1.

    Development and Research Center, China Geological Survey, Beijing 100037, China

  • 2.

    State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum, Beijing 102249, China

  • 3.

    Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China

  • 4.

    Institute of Unconventional Oil & Gas, Northeast Petroleum University, Daqing, Heilongjiang 163318, China

  • 5.

    Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China

  • Received Date: 2020-04-10
  • Rev Recd Date: 2020-12-01
  • Publish Date: 2021-03-28
    Abstract
  • Argon-ion polishing field emission-scanning electron microscopy (FE-SEM) is a common method to characterize the microscopic pore structure characteristics of shale reservoirs, but organic macerals cannot be directly identified by FE-SEM alone. Fluorescence microscopy is the main method for identifying macerals. Through a large number of localized FE-SEM and fluorescence microscopy observations, the microscopic characteristics of specific macerals under FE-SEM were summarized. The macerals visualized using FE-SEM can be interpreted based on features such as the external shape, hardness, brightness, color, relief, organic pore development characteristics and fissure development characteristics of the organic matter. Telinite, collotelinite, vitrodetrinite, fusinite, semifusinite, funginite, inertodetrinite, oil bitumen and pyrobitumen were identified.

     

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