西南石油大学学报(自然科学版) ›› 1995, Vol. 17 ›› Issue (3): 76-84.DOI: 10.3863/j.issn.1000-2634.1995.03.011

• 油气田开发 • 上一篇    下一篇

泥饼抗冲刷能力强弱的机理研究

赵敏 李云鹃
  

  1. (完井技术中心)
  • 收稿日期:1995-06-01 修回日期:1900-01-01 出版日期:1995-08-20 发布日期:1995-08-20
  • 通讯作者: 赵敏

The Mechanism of Shear Resistance for Muci Cake

Zhao Ming Li Yun-juan
  

  1. (Center of Well Completion Techniques)
  • Received:1995-06-01 Revised:1900-01-01 Online:1995-08-20 Published:1995-08-20
  • Contact: Zhao Ming

摘要: 本文提出,在有压差作用时,泥饼颗粒之问的粘结力由两部分组成;一部分是以范德华力为主的内聚力;另一部分则足与泥饼上压差有关的附加粘结力。泥拼的宏观特性如渗透率、孔隙度、厚度、压缩性以及泥饼上的压差等都将影响这两种粘结力的大小,从而形响泥饼的杭冲刷能力,以及滤失量的大小。

关键词: 泥饼, 胶结, 剪切应力, 剪切速率

Abstract: This paper presents that under the filtration pressure the coherent forces between slay particles in the cake consist of two party; one is the Van der Watt force,another is addition-al Coherent force which is relative to filtration pressure. The macroscopic mud cake proper-ties,such as permeability,porosity,thickness.compressibility and diltration pressure,will affect the coherent forces. As a result,it will affect the shear resistance of a mud cake.

Key words: Mud cake, Coherent force, Shear stress, Shear rate

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