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Article Navigation >  PETROLEUM GEOLOGY & EXPERIMENT  > 2016  >  38(1): 135-140
Tian Hua, Zhang Shuichang, Liu Shaobo, Gao Yuan, Zhang Hong, Wang Maozhen, Hao Jiaqing, Zheng Yongping, Zhang Tao. Evolution of pores in shale during thermal maturation using Small Angle X-ray Scattering (SAXS)[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(1): 135-140. doi: 10.11781/sysydz201601135
Citation: Tian Hua, Zhang Shuichang, Liu Shaobo, Gao Yuan, Zhang Hong, Wang Maozhen, Hao Jiaqing, Zheng Yongping, Zhang Tao. Evolution of pores in shale during thermal maturation using Small Angle X-ray Scattering (SAXS)[J]. PETROLEUM GEOLOGY & EXPERIMENT, 2016, 38(1): 135-140. doi: 10.11781/sysydz201601135
shu

Evolution of pores in shale during thermal maturation using Small Angle X-ray Scattering (SAXS)

doi: 10.11781/sysydz201601135
  • 1.

    Research Institute of Petroleum Exploration and Development, CNPC, Beijing 100083, China

  • 2. State Key Laboratory of Enhanced Oil Recovery, Beijing 100083, China

  • 3. Key Laboratory of Basin Structure and Hydrocarbon Accumulation, CNPC, Beijing 100083, China

  • 4. Beijing Center for Physical and Chemical Analysis, Beijing 100089, China

  • 5. School of Geosciences, China University of Petroleum(East China), Qingdao, Shandong 266555, China

  • Received Date: 2014-05-06
  • Rev Recd Date: 2015-05-24
  • Publish Date: 2016-01-28
    Abstract
  • Nano pores in shale were measured quantitatively using a Small Angle X-ray Scattering (SAXS) method in this study. The volume fraction and distribution function of open and closed pores in the range of miro-pore and meso-pore were obtained in a quick measurement. To quantitatively analyze pore evolution in shale during thermal maturation, some artificial pyrolysis residues of different temperatures and some natural core samples were obtained for SAXS pore measurement. Results show that with the increase of thermal maturity, pore abundance becomes higher. From 300℃ to 600℃, pore width can increase by 35% without considering formation compaction. It is inferred that mature and over-mature shale can develop abundant organic pores, which are advantageous for shale gas storage.

     

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