煤炭地下气化资源条件的评价指标分析
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摘要
为了客观评价煤炭地下气化的可行性,建立煤炭地下气化资源条件的4个一级评价指标,地质构造特征、煤层赋存特征、水文地质条件、煤岩煤质特征,将4个一级指标细化成煤层厚度等20个二级评级指标。基于评价体系分析宁正矿区煤6层实施地下气化的可行性,分析发现煤6层地质构造简单,煤层赋存稳定可靠,煤岩煤质优良,地下水影响较小,顶底板岩性以泥岩、粉砂岩为主,污染物渗透能力弱,充分体现煤6层实施煤炭地下气化资源优势明显。
In order to objectively evaluate the feasibility of underground coal gasification, four first-level evaluation indicators for coal underground gasification resource conditions was set up, including geological structure characteristics,coal seam occurrence characteristics, hydrogeological conditions, coal and rock coal quality characteristics. The first-level indicators were refined into 20 secondary rating indicators such as coal seam thickness. Based on the evaluation system, the feasibility of underground gasification in the 6 th coal seam of Ningzheng Mining Area was analyzed. It was found that the coal seam with a simple geological structure, the coal seam was stable and reliable, the coal and rock quality was excellent,the groundwater impact was small, and the lithology of the roof and floor was considered as mudstone, mainly siltstone, the ability of pollutants to penetrate was weak, fully demonstrating the obvious advantages of implementing coal underground gasification resources on the 6 th floor of coal.
In order to objectively evaluate the feasibility of underground coal gasification, four first-level evaluation indicators for coal underground gasification resource conditions was set up, including geological structure characteristics,coal seam occurrence characteristics, hydrogeological conditions, coal and rock coal quality characteristics. The first-level indicators were refined into 20 secondary rating indicators such as coal seam thickness. Based on the evaluation system, the feasibility of underground gasification in the 6 th coal seam of Ningzheng Mining Area was analyzed. It was found that the coal seam with a simple geological structure, the coal seam was stable and reliable, the coal and rock quality was excellent,the groundwater impact was small, and the lithology of the roof and floor was considered as mudstone, mainly siltstone, the ability of pollutants to penetrate was weak, fully demonstrating the obvious advantages of implementing coal underground gasification resources on the 6 th floor of coal.
引文
[1]谢和平,高峰,鞠杨.深部岩体力学研究与探索[J].岩石力学与工程学报,2015,34(11):2 161-2 178.
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[9]赵岳,黄温钢,徐强,等.煤炭地下气化地质条件评价研究-以江苏省朱寨井田为例[J].河南理工大学学报(自然科学版),2018,37(3):1-11.
[10]刘淑琴,周蓉,潘佳,等.煤炭地下气化选址决策及地下水污染防控[J].煤炭科学技术,2013,41(5):23-27,62.
[11]赵理中.煤炭地下气化的地质条件[J].中国煤炭,1995(7):67-68.
[12]姚凯,刘洪涛,潘霞,等.涌入水对煤炭地下气化影响的模型实验研究[J].煤炭转化,2011,34(3):27-30,40.
[13]徐云龙.地下气化过程中煤层顶板岩石渗透特性研究[D].太原理工大学,2015.
[14]刘淑琴,梁杰,余学东,等.不同煤种地下气化特性研究[J].中国矿业大学学报,2003(6):28-32.
[15]步学朋,任相坤,崔永君.煤炭气化技术对煤质的选择及适应性分析[J].神华科技,2009,7(5):73-77,81.
[2]何满潮,谢和平,彭苏萍,等.深部开采岩体力学研究[J].岩石力学与工程学报,2005,24(16):2 803-2 813.
[3]王志刚,付小锦,江胜国.煤炭地下气化技术在天津地区的应用研究[J].煤炭与化工,2015,38(9):31-34.
[4]李怀展.无井式煤炭地下气化岩层移动机理与控制研究[D].中国矿业大学,2017.
[5]胡鑫蒙,赵迪斐,郭英海,等.我国煤炭地下气化技术(UCG)的发展现状与展望[J].非常规油气,2017,4(1):108-115.
[6]黄温钢,王作棠.煤炭地下气化变权-模糊层次综合评价模型[J].西安科技大学学报,2017,37(4):500-507.
[7]柳迎红,梁新星,梁杰,等.影响煤炭地下气化稳定性生产因素[J].煤炭科学技术,2006(11):79-82.
[8]刘淑琴,张尚军,牛茂斐,等.煤炭地下气化技术及其应用前景[J].地学前缘,2016,23(3):97-102.
[9]赵岳,黄温钢,徐强,等.煤炭地下气化地质条件评价研究-以江苏省朱寨井田为例[J].河南理工大学学报(自然科学版),2018,37(3):1-11.
[10]刘淑琴,周蓉,潘佳,等.煤炭地下气化选址决策及地下水污染防控[J].煤炭科学技术,2013,41(5):23-27,62.
[11]赵理中.煤炭地下气化的地质条件[J].中国煤炭,1995(7):67-68.
[12]姚凯,刘洪涛,潘霞,等.涌入水对煤炭地下气化影响的模型实验研究[J].煤炭转化,2011,34(3):27-30,40.
[13]徐云龙.地下气化过程中煤层顶板岩石渗透特性研究[D].太原理工大学,2015.
[14]刘淑琴,梁杰,余学东,等.不同煤种地下气化特性研究[J].中国矿业大学学报,2003(6):28-32.
[15]步学朋,任相坤,崔永君.煤炭气化技术对煤质的选择及适应性分析[J].神华科技,2009,7(5):73-77,81.
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