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Micropore Structure Representation of Sandstone in Petroleum Reservoirs Using an Atomic Force Microscope |
| BAI Yong-Qiang1**, ZHU Xing2,3, WU Jun-Zheng4, BAI Wen-Guang4
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1College of Electronic Science, Northeast Petroleum University, Daqing 163318
2School of Physics, State Key Laboratory for Artificial Microstructure and Mesoscopic Physics, Peking University, Beijing 100871
3National Center for Nanoscience and Technology, Beijing 100080
4Daqing Oilfield Limited Company of China, Daqing 163453
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| Cite this article: |
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BAI Yong-Qiang, ZHU Xing, WU Jun-Zheng et al 2011 Chin. Phys. Lett. 28 080701 |
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Abstract The pore structure of sandstone in an oil reservoir is investigated using atomic force microscopy (AFM). At nanoscale resolution, AFM images of sandstone show us the fine structure. The real height data of images display the three-dimensional space structure of sandstone effectively. The three-dimensional analysis results show that the AFM images of sandstone have unique characteristics that, like fingerprints, can identify different structural properties of sandstones. The results demonstrate that AFM is an effective method used to represent original sandstone in petroleum reservoirs, and may help geologists to appreciate the sandstone in oil reservoirs fully.
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| Keywords:
07.79.Lh
91.60.-x
93.85.-q
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Received: 13 February 2011
Published: 28 July 2011
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| PACS: |
07.79.Lh
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(Atomic force microscopes)
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91.60.-x
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(Physical properties of rocks and minerals)
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93.85.-q
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(Instruments and techniques for geophysical research: Exploration geophysics)
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