龙南县汶龙镇煤矿地热资源应用前景分析
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摘要
汶龙镇煤矿含煤地层为二叠系龙潭组,上覆侏罗系火山沉积岩,深部隐伏有燕山期高生热率花岗岩体。矿区构造复杂,主干断裂规模较大,活动剧烈,次生断层发育。矿井生产时井下温度较高,矿井突水温度高达37℃,说明存在地热异常。综合研究分析认为矿区具有较好地热资源前景,建议进一步开展工作。通过对已关闭矿山汶龙镇煤矿的地质资料综合分析,并进行采样测试,阐述了矿区的地质概况及地热地质特征。
By comprehensive analysis of the geological data in the closed coal mine in Wenlong Town, the paper elaborates the geological overview and geothermal geological characteristics of the mining area by sampling test, which show the Permian Longtan Formation is a coal-bearing stratum, overlaid with Volcanic sedimentary rock and Yanshanian high heat rate granite in deep; the trunk fracture is large in scale with fierce activities and secondary faults development; mine water inrush temperature,as high as 37 ℃, owing to the higher underground temperature during the production showes there is geothermal anomaly; and mining area has good prospects for geothermal resources and further development.
By comprehensive analysis of the geological data in the closed coal mine in Wenlong Town, the paper elaborates the geological overview and geothermal geological characteristics of the mining area by sampling test, which show the Permian Longtan Formation is a coal-bearing stratum, overlaid with Volcanic sedimentary rock and Yanshanian high heat rate granite in deep; the trunk fracture is large in scale with fierce activities and secondary faults development; mine water inrush temperature,as high as 37 ℃, owing to the higher underground temperature during the production showes there is geothermal anomaly; and mining area has good prospects for geothermal resources and further development.
引文
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[2]陈冬生,杨金华.江西省地热资源成因及分布规律探讨[J].江西煤炭科技,2011(3):121-122.
[3]宋炉生,邱开国,等.江西省龙南县汶龙镇煤矿资源储量核实报告[R].南昌:江西省煤田地质勘察研究院,2014.
[4] Rybach L.Determination of heat production rate.In:Handbook of terrestrial heat flow density,Haenel R,Rybach L and Stegena L(eds.).Holland:Kluwer Academis Publishers.1988,125-142.
[5]赵平,汪集旸,汪缉安,等.中国东南地区岩石生热率分布特征[J].岩石学报,1995,11(3):292-305.
[6]尹祝,李康东.江西省龙南县汤湖地热资源浅析[J].资源调查与环境,2011,32(3):207-217.