南方下古生界页岩中有机质赋存状态及其成因

页岩有机质特征是页岩气勘探开发研究的重要内容之一。同时制取页岩的抛光面和自然断面，借助场发射扫描电镜，观测南方多省（市）下古生界页岩有机质的电子图像特征及其赋存状态。从大量样品的观测结果中归纳得出，在抛光面上有机质的赋存状态有条带状、散块状、填隙状、互裹状；在自然断面上有交互状、薄膜状、条带状。这些赋存状态反映出有机质与矿物质的成因关系有同生、胶结和分异。研究结果从微米级-纳米级尺度上为页岩气理论研究和勘探开发提供深层次的直观信息。 

Organic matters and their occurrence state in Lower Paleozoic shale in south China

The characteristics of the organic matter of shale are one of the important contents of shale gas exploration and development. In order to observe the electronic image features and the occurrence state of the organic matter of Lower Paleozoic shale in diverse provinces in south China, the polished surface and the natural fracture surface were prepared, the field emission scanning electron microscopy was used. From the observations of a large number of samples, organic matter on polished surface occurred as striped, scattered pieces, gap filling and wrapping each other, and on natural fracture surface as interaction, thin film and striped. The genesis relationship between organic matter and minerals is determined as syngenetic, cementation and differentiation. The results can provide visual information of deep level from micron-nanoscale for theoretic research, exploration and development of shale gas.