摘要
裂缝种类繁多 ,成因复杂 ,给预测带来了较大的困难 .阐述了地下天然裂缝与人工裂缝、构造缝与岩性缝的区别 ,将构造裂缝分为伴生裂缝和诱导裂缝 ,介绍了 2种裂缝的分布规律 ,伴生裂缝的分布由区域应力场决定 ,诱导裂缝的分布由局部区域应力场决定 .采用有限单元构造应力场与普通光弹法对大芦湖地区构造裂缝预测 ,预测结果与注水开发实际效果相吻合 .
There are many types of fissures and their causes are complicated, it is diffcult to forecast fissure. This paper expounds the difference between fissures and fissure fractured, structural and Lithological fissure, divides structured fissures into associated fissures and induced fissures, intruduces their distribution laws. The former is controlled by regional stress field, the latter is controlled by areal stress field, this paper puts forward the method forecastion fissures by structural stress field of limited unit and common photoelastic method, forecasts the structural fissures in Daluhu region, the result tallies with the actural effect of waterflooding.
出处
《大庆石油学院学报》
CAS
北大核心
2000年第3期82-85,共4页
Journal of Daqing Petroleum Institute
