民和—西宁盆地油页岩资源特征及勘查开发利用条件分析  

THE RESOURCE CHARACTERISTICS OF OIL SHALE AND ANALYSIS OF CONDITION OF PROSPECTING AND USING IN MINHE-XINING BASIN,WEST OF CHINA

作　　者：白云来[1] 吴武军[1] 房乃珍[1] 程玉红[1] 马玉虎[1] 冯明[1] 廖建波[1] 李相博[1] 

机构地区：[1]中国石油勘探开发研究院西北分院,甘肃兰州730020

出　　处：《天然气地球科学》2006年第5期627-633,共7页Natural Gas Geoscience

基　　金：中国石油"西北地区油页岩资源调查与评价"项目(编号:20051126)资助

摘　　要：兰州市和西宁市是中国西部最为重要的经济圈之一，这2座城市之间有生成联系的中新生代盆地（民和盆地和西宁盆地）不仅赋存有良好的煤炭资源，而且蕴藏着较为丰富的油页岩资源。现已查明，该地区油页岩预测资源量至少约30亿t，折合页岩油约2亿t，现已探明油页岩资源量为5亿t，折合页岩油0．3亿t；该区油页岩主要赋存于中侏罗统，与煤共生，油页岩矿区构造简单，原型盆地经恢复为一侏罗纪内陆山间沉积盆地。油页岩宏观上呈黑色，略具油脂光泽，硬度较小，质量较好，厚度一般5～30m，含油率一般为7％～9％，发热量一般为3．64～10．49MJ／kg。指出该经济圈油页岩矿区交通便利，如果能将煤的开发和油页岩的利用结合起来，会取得事半功倍的效果。Prospecting and utilization of oil shale resources, now, have already excited wide attention. The area of Lanzhou and Xining is most impotant economic area in the west of China and contained abundant resources of both oil shale and coal in here （Xining basin and Minhe basin）. Investigating result indicates that forecast resources of oil shale amounts to 30× 10^-8 t（to convert into shale oil is 1.8×10^- 8 t） and identified resource of oil shale amounts to 5× 10^1 8（to convert into shale oil is 0. 3× 10^-8 t）. Resources of oil shale, mostly, distributed in middle-Jurassic. Oil shale and coal are intergrowths in here. The structures of oil shale diggnings are simple. Antetype basin is inland lake basin among mountains. The oil shale appears black, a little lipin luster, less rigidity, brown mark and its quality is higher. The thickness of oil shale are, commonly, 5-30 m, and its oil-bearing ratio is 7%-9%, quantity of heat is-3.64- 10.49 MJ/kg. The traffic is advantage in oil shale diggings in the economic area. If exploitation and using of coal and oil shale were fell together, the good effect could be gain.

关 键 词：兰州-西宁经济圈 油页岩 资源 

分 类 号：TE122.1[石油与天然气工程—油气勘探]