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相关概念视频

Scaling01:26

Scaling

712
In designing and analyzing filters, resonant circuits, or circuit analysis at large, working with standard element values like 1 ohm, 1 henry, or 1 farad can be convenient before scaling these values to more realistic figures. This approach is widely utilized by not employing realistic element values in numerous examples and problems; it simplifies mastering circuit analysis through convenient component values. The complexity of calculations is thereby reduced, with the understanding that...
712

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Ferromagnetic Ordering in a Two-Dimensional Copper Complex with Dual End-to-End and End-On Azide Bridges This work was supported by the National Natural Science Foundation of China (NSF 29631040 and 29929001), The Major State Basic Research Development Program (Grant No. G2000077500 and No. G1998061306), and the Malaysian Government research grant R&D No. 305/pfizik/622004.

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相关实验视频

Updated: Apr 30, 2026

Characterization Of Multi-layered Fish Scales Atractosteus spatula Using Nanoindentation, X-ray CT, FTIR, and SEM
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在岩石中确定多个长度尺度.

Song1, Ryu, Sen

  • 1Schlumberger-Doll Research, Ridgefield, Connecticut 06877, USA. song@ridgefield.sdr.slb.com

Nature
|July 26, 2000
PubMed
概括
此摘要是机器生成的。

这项研究引入了一种新的,非破坏性的核磁共振技术,用于分析中东碳酸盐岩中的孔隙结构. 该方法揭示了关键的毛孔大小分布,这对于理解油库特性和改善石油回收至关重要.

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Reservoir Condition Pore-scale Imaging of Multiple Fluid Phases Using X-ray Microtomography
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Kinematic History of a Salient-recess Junction Explored through a Combined Approach of Field Data and Analog Sandbox Modeling
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科学领域:

  • 地质科学是地球科学.
  • 石油工程是石油工程中的一个.
  • 材料科学 材料科学 材料科学

背景情况:

  • 中东的碳酸盐储备约占世界石油储备的一半.
  • 在碳酸盐岩石中,沉积和透析产生复杂的孔状结构 (微孔状粒,各种孔状尺寸).
  • 不同质的孔隙分布和连接性使控制流体传输的孔隙长度尺度的确定变得复杂.

研究的目的:

  • 介绍一种新的,非破坏性的批量测量技术,用于描述碳酸盐岩中的孔状结构.
  • 要提取多个影响流体运输特性的特征长度尺度.
  • 为估计毛细血管结合的水和增强石油生产提供关键信息.

主要方法:

  • 利用核磁共振 (NMR) 来探测孔隙空间.
  • 在孔隙结构中利用空间变化的磁场作为孔隙结构的"指纹".
  • 将该技术应用于中东碳酸盐岩石样本.

主要成果:

  • 在研究的碳酸盐岩石中,确定了三种主要的孔长度尺度,范围从1到100微米.
  • 确定毛孔具有良好的连接性和空间混合分布.
  • 证明了该技术能够以非破坏性的方式提取详细的孔隙结构信息的能力.

结论:

  • 开发的核磁共振技术有效地描述了碳酸盐储库中的复杂孔状网络.
  • 了解毛孔长度尺度和连接性对于准确估计毛细血管结合的水和优化石油回收至关重要.
  • 该方法显示了在研究浅砂储和细胞结构方面的应用潜力.