摘要
储层岩石存在本体变形和结构变形2种变形方式。储层岩石的应力敏感也存在本体变形应力敏感和结构变形应力敏感2种应力敏感机制。根据该文的研究,岩石的本体变形导致的应力敏感程度极弱,生产过程中可以将其忽略;而岩石的结构变形导致的应力敏感程度则极强,它不仅不会降低油藏的产能,反而会维持油藏的地层能量和提高油藏的产能,十分有利于驱油。
There exist two typical deformations for reservoir rocks： primary deformation and structural one. Accordingly, there are two types of stress sensitivity for reservoir rocks. Based on the research, the stress sensitivity of reservoir rocks caused by primary deformation is quite weak, and it can be neglected in the production practice of reservoir development. However, the stress sensitivity of reservoir rocks caused by structural deformation is quite strong, which can not only reduce the production rate of reservoir, but also maintain the reservoir pressure properly and increase the production rate of oil. The stress sensitivity of reservoir rocks is quite favorable for oil recovery.
出处
《岩性油气藏》
CSCD
2008年第1期111-113,共3页
Lithologic Reservoirs
关键词
油藏
岩石
应力敏感
本体变形
结构变形
reservoir
rock
stress sensitivity
primary deformation
structural deformation
