Occurrence characteristics and resource potential evaluation of tar-rich coal for No.5-2 coal seam in Shenfu Mining Area

被引：0
|
作者：
Li H. [1 ,2 ]
Yao Z. [1 ,2 ]
Li N. [1 ,2 ]
Gao J. [1 ,2 ]
Xie Q. [1 ,2 ]
Wang Q. [1 ,2 ]
机构：
[1] Shaanxi Institute of Geological Survey, Xi’an
[2] Shaanxi Mineral Resources and Geological Survey, Xi’an
来源：
Li, Huabing (215874363@qq.com) | 1600年 / Science Press卷 / 49期
关键词：
Jurassic Yan’an Formation; Occurrence characteristics; Resource potential; Shenfu mining area; Tar-rich coal;
D O I：
10.3969/j.issn.1001-1986.2021.03.004
中图分类号：
学科分类号：
摘要：
With the promotion of clean and efficient utilization of coal and the demand for high-quality development in the middle section of the Yellow River, the transformation and upgrading of coal industry is imperative in Yulin, and the exploitation of tar-rich coal one of the important directions. By organizing and making use of mass drill data, and in combination with the minefield underground spot sampling and regional geology, tar-yield characteristics and tar-rich coal occurrence features of tar-rich coal in No.5-2 coal seam in Shenfu Mining Area are analyzed in detail. Based on analytic hierarchy process, this paper takes resource allocation, coal bed occurrence, development technology as well as social and environmental benefits as main indicators, subdivides 10 evaluation parameters, and establishes a tar-rich coal resource potential evaluation system. The results show that the average tar yield is 9.81%, and the tar-rich coal is generally well developed. The occurrence characteristics of tar-rich coal includes high tar yield, stable development, local variability, wide area and great potential. The average comprehensive score of the development potential is 77.34 in the research region, which is a resource-rich favorable area. Two fav-orable resource areas are divided, with an area of about 700 km2, the coal seam thickness more than 5 m, the tar yield greater than 9%, and the reserves greater than 2 000 Mt, including Hongliulin minefield, Ningtiaota minefield, Zhangjiamao minefield, Daliuta minefield, Dahaize minefield, Shiyaodian minefield, and Qinglongsi minefield, which presents directions for the future tar-rich coal exploration and development. © 2021 Meitiandizhi Yu Kantan/Coal Geology and Exploration. All rights reserved
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页码：26 / 32+41
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