在泥岩段水平最大与最小主应力基本相等或相差甚小，在砂岩段才呈现较大差异。
Horizontal maximum and minimum principal stresses are nearly equal in shale formation, and very different in sand formation.
基准面上升到下降的转换位置发育的大套泥岩段是区内的主要烃源层和良好的区域盖层。
The huge thick mudstone section deposited at the turning position from uprising to subsiding of the base level is the main hydrocarbon source rock and favourable reginal cap rock.
内陆湖泊环境中的湖相泥岩段和海湾环境的海湾相泥岩段有机质含量高，是重要的烃源岩。
The lacustrine shale and shale of bay facies have a high organic content, which are important source rocks.
应用推荐