http://www.expressnews.com位于美国德州西南部的鹰滩(Eagle Ford)地区是美国页岩气的主产区,多家公司勘探证实该区页岩气资源丰富,估计原始地质储量达6000亿m3。据美国能源信息署(EIA)新近发布的钻井效率报告显示,鹰滩页岩区原油产量已超过位于北达科他州的巴肯页岩区。鹰滩页岩是一种有机碳含量很高的钙质页岩,其构成了德克萨斯州西南部地区的沉积盖层。在鹰滩页岩分布的一些区域中,页岩中的有机质在高温高压下发生热演 http://www.expressnews.com The Eagle Ford area in southwestern Texas is the main producing area for shale gas in the United States. Exploration by a number of companies confirms the richness of shale gas resources in the area. It is estimated that the original geological reserves of up to 600 billion m3. According to a recent drilling efficiency report released by the U.S. Energy Information Administration (EIA), crude oil production in Eagle Beach Shale area has surpassed the Bakken area in North Dakota. Eagle’s Beach Shale is a calcareous shale with high organic carbon that forms the sedimentary cover in the southwestern Texas. In some areas of the Eagle’s Beach shale distribution, the organic matter in the shale heats up under high temperature and pressure