- 责任者：Yang Di (State Key Laboratory of Oil and Gas Reservoir Geology and Exploration ; Chengdu University of Technology ; Chengdu 610059 ; China) ; Liu Shugen
- 刊名：Journal of Chengdu University of Technology
- 出版年：2013
- 卷期：40(6)
- 关键词：黑色页岩 ; black shale ; 岩体力学 ; rock mechanics ; 扬子地区 ; Yangtze Region
- 页码：p.677-687
- 图表：10 illus., 2 tables, 24 refs.
- 分类号：1702
- issnNo：ISSN1671-9727
- isbnNo：CN51-1634/N
The black shale of the Lower Cambrian Niutitang Formation in the upper Yangtze region is a set of regional hydrocarbon source rocks rich in organic matter.Using MTS Rock Physical Parameter Automatic Testing System,the rock mechanical property of 2 wells and 2 measured sections are researched through simulating actual geological conditions.Then,a comparison between the mechanical parameters of North American typical shales and that of the Niutitang Formation black shale is made.The result shows the following conclusions.（1） The fracture patterns of the black shale are mainly the tensile shear failure,monoclinic shear failure and conjugate shear failure.With the confining pressure increases gradually,the rock rupture angle decrease.The rupture is mainly the brittle to brittle-plastic deformation.（2）The type and burial depth of the shale,the core orientation,formation water and the loading conditions have great influences on the rock mechanical parameters of the shale.（3） The compressive strength of rocks has some relationship with the sedimentary background.（4）The brittle mineral composition is another main factor influencing the compressive strength.