西南石油大学学报(自然科学版) ›› 1997, Vol. 19 ›› Issue (3): 8-13.DOI: 10.3863/j.issn.1000-2634.1997.03.002

• 石油地质勘探 • 上一篇    下一篇

储层伤害源—定义、作用机理和描述体系

康毅力1 罗平亚1 高约友2
 
  

  1. 1.西南石油学院油井完井技术中心,四川南充637001 2.河南石油勘探局
  • 收稿日期:1996-10-31 修回日期:1900-01-01 出版日期:1997-08-20 发布日期:1997-08-20
  • 通讯作者: 康毅力

The Source of Formation Damage—Definition, Mechanism and Descriptive System

Kang Yi-li 1 Luo Ping-ya2 Gao Yue-you3


  

  1. (Centre for Well Completion Technique, SWPI, Sichuan, 637001)
  • Received:1996-10-31 Revised:1900-01-01 Online:1997-08-20 Published:1997-08-20
  • Contact: Kang Yi-li

摘要: 根据储层损害的特殊性和损害机理,将储层伤害源定义为:打开储层时,在温度压力环境
下,由于储层内组分或外来组分与储层组分作用所发生的变化,导致岩石孔隙结构的调整并引
起绝对渗透率降低的物质。储层伤害源包括内伤害源、外伤害源和复合伤害源三个部分。内伤害源是储层内固有的,外伤害源是引入的,复合伤害源是内、外伤害源相互作用的产物。伤害源作用机理研究表明,伤害源是一个复杂的系统,具有明显的结构层次和功能,可划分为五级描述体系,这就为保护油气层技术系统工程提供了理论依据。

关键词: 储集层, 结构, 孔隙度, 污染源, 系统

Abstract: The source of formation damage ( SFD ) is defined as materials which cause changes in pore structure and de-creases in permeability during well drilling, completion and production due to alterations of reservoir components
and / or interactions between reservoir components and the working fluids. SFD can be divided into three parts:inner SFD, outer SFD and complex SFD. The inner SFD is inherent; the outer SFD is introduced by working
fluids, while the complex SFD is a result of interaction of the two mentioned above. Studies of formation damage mechanism indicate that SFD is a complicated system with clear structures and functions. And such a system can be better studied using the five-level description scheme proposed in this paper.

Key words: Reservoirs stratum, Poresity, Pollution source, Systems, Joints

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