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东海西湖凹陷西斜坡和西次凹近致密-致密砂岩气藏的地质特征及发育前景 被引量:8
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作者 苏奥 陈红汉 +2 位作者 詹海勇 杨文帅 王存武 《中国地质》 CAS CSCD 北大核心 2015年第4期1115-1125,共11页
基于沉积构造背景和大量钻测资料,利用气样地球化学测试、铸体薄片、扫描电镜、激光扫描共聚焦显微镜和阴极发光等手段,揭示了东海西湖凹陷西斜坡和西次凹近致密-致密砂岩气藏的地质特征,并分析了发育前景。研究结果表明:2个靶区近致密... 基于沉积构造背景和大量钻测资料,利用气样地球化学测试、铸体薄片、扫描电镜、激光扫描共聚焦显微镜和阴极发光等手段,揭示了东海西湖凹陷西斜坡和西次凹近致密-致密砂岩气藏的地质特征,并分析了发育前景。研究结果表明:2个靶区近致密-致密砂岩气藏均分布在中深层,且位于常规气藏之下,但发育层位不同,西斜坡在平湖组中下段,西次凹在花港组下段。2个靶区的近致密-致密砂岩气均为煤型气,来源于平湖组煤系源岩,西次凹致密气藏属于"下生上储"型,西斜坡属于"自生自储"型。西次凹属于典型的致密砂岩储层,西斜坡属于近致密砂岩储层。强压实作用和硅质、自生伊利石及碳酸盐胶结是储层致密化的重要因素。溶孔和原生粒间孔是致密砂岩储层主要储集空间;2个靶区的近致密-致密储层不同深度段发育"孔隙型"甜点,为酸性溶蚀成因,但西斜坡的溶蚀强度大于西次凹。另外,西次凹深层发育部分裂缝,形成该区"裂缝型"甜点。西次凹致密气藏具有弱超压特征,西斜坡具有超压-强超压特征。平湖组广覆式分布高有机质丰度的煤系源岩全天候持续供气是靶区发育大规模近致密-致密砂岩气藏的物质基础,大面积近致密-致密储层提供了良好的储集体,因此发育前景好,勘探潜力大。 展开更多
关键词 近致密-致密砂岩 气藏 地质特征 发育前景 西湖凹陷 中西部
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Development Prospects Research and Situation Analysis of College English Teaching Management
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作者 Zhaowu YIN 《International Journal of Technology Management》 2015年第6期63-65,共3页
To some extent, college English teaching management affects the success or failure of university education. This paper analyzes the current status of research and management, the use of management to clarify the meani... To some extent, college English teaching management affects the success or failure of university education. This paper analyzes the current status of research and management, the use of management to clarify the meaning of the five elements of law, based on the induction of the one-sided understanding, setting single, formal training, and simplistic assessment of the four questions, and start from the two elements of teaching and learning around how to teach, how to learn, how assessment of the problem, explore the three management initiatives, with a view of college English teaching management plays a certain significance. 展开更多
关键词 college English teaching management situation analysis COUNTERMEASURES
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