南岭地区多金属矿NLSD-2孔综合地球物理测井研究
|
摘要
NLSD-2孔是在南岭东段于都赣县矿集区盘古山示范区部署的南岭地区第二口科学钻孔———金属异常验证孔,终孔深度2012.12m,全井段实施了连续取芯和综合地球物理测井作业,测井项目包括自然电位、自然伽马、电阻率、声波速度、密度、井径、井斜、井温、超声波成像、极化率、磁化率和井中三分量磁测等,原位获取了钻孔剖面的各种物理化学参数、钻孔几何形态及井壁图像。综合利用各种测井资料,并结合岩芯编录资料,对全井段岩性、金属矿化带和断裂破碎带进行了细致分析。结果表明,自然伽马、声波速度和密度测井对该钻孔的岩性响应明显,通过制作岩性识别交会图,可识别出钻孔剖面的主要岩性;该钻孔的多金属矿化主要有白钨矿化、黑钨矿化、黄铁矿化、闪锌矿化、辉钼矿化等,在测井图中表现为高极化率、低电阻率、磁异常垂直分量ΔZ及水平分量模差ΔH’异常的组合特征,据此能够有效地划分和评价矿化带;断裂破碎带的测井响应特征为井径扩大,电阻率、声波速度、密度减小,超声成像呈暗色条带,这些特征可作为找矿辅助标志。实践证明综合测井资料在深部找矿方面能够发挥重要的作用。
The borehole of NLSD-2is the second scientific drilling hole in the Nanling district,which is disposed by Pangushan demonstration area of Yudu-Ganxian ore district in the eastern of Nanling—verified as a metal exception hole.The whole well(the final depth is 2012.12m)is implemented a continuous coring and well logging works,and the various physical and chemical parameters of drilling profile,borehole geometry and the images of well wall are achieved by in-situ.The logging projects include:spontaneous potential,natural gamma ray,resistivity, acoustic velocity, density,caliper,inclination, well temperature,ultrasonic imaging,polarization,magnetic susceptibility,borehole three-component magnetic survey logging et al. Combined with the core catalog information,the lithology,polymetallic mineralization belt and fracture zone of the whole well are carefully analysised by using the conventinal logging data The results show that,in the hole NLSD-2,the natural gamma ray,acoustic velocity and density logs which have obvious response,can be used to plot the lithology identification crossplot to identify the main lithology of borehole section.In this hole,the polymetallic mineralizations which mainly include scheelite mineralization,wolframite mineralization,pyritemineralization,sphaleritemineralization, molybdenite mineralization and so on,show the combination characteristics of high polarization,low resistivity,the vertical component(ΔZ)and the horizontal component(ΔH')of magnetic anomaly in the loging figures.And based on these characteristics,the mineralized zone can be effectively divided and evaluated.The log response characteristics of farcture zone are expending caliper,low resistivity,low acoustic velocity and low density,and dark stripe in ultrasound imaging logs.And these features can be used to as an auxiliary flag in the ore prospecting.Therefore,the integrated logging data play an important role in the deep ore prospecting.
The borehole of NLSD-2is the second scientific drilling hole in the Nanling district,which is disposed by Pangushan demonstration area of Yudu-Ganxian ore district in the eastern of Nanling—verified as a metal exception hole.The whole well(the final depth is 2012.12m)is implemented a continuous coring and well logging works,and the various physical and chemical parameters of drilling profile,borehole geometry and the images of well wall are achieved by in-situ.The logging projects include:spontaneous potential,natural gamma ray,resistivity, acoustic velocity, density,caliper,inclination, well temperature,ultrasonic imaging,polarization,magnetic susceptibility,borehole three-component magnetic survey logging et al. Combined with the core catalog information,the lithology,polymetallic mineralization belt and fracture zone of the whole well are carefully analysised by using the conventinal logging data The results show that,in the hole NLSD-2,the natural gamma ray,acoustic velocity and density logs which have obvious response,can be used to plot the lithology identification crossplot to identify the main lithology of borehole section.In this hole,the polymetallic mineralizations which mainly include scheelite mineralization,wolframite mineralization,pyritemineralization,sphaleritemineralization, molybdenite mineralization and so on,show the combination characteristics of high polarization,low resistivity,the vertical component(ΔZ)and the horizontal component(ΔH')of magnetic anomaly in the loging figures.And based on these characteristics,the mineralized zone can be effectively divided and evaluated.The log response characteristics of farcture zone are expending caliper,low resistivity,low acoustic velocity and low density,and dark stripe in ultrasound imaging logs.And these features can be used to as an auxiliary flag in the ore prospecting.Therefore,the integrated logging data play an important role in the deep ore prospecting.
引文
蔡柏林.1988.井中物探的发展现状及应用前景.国外地质勘探技术,10(增刊):84~88.
曹令敏.2011.地球物理方法在金属矿深部找矿中的应用及展望.地球物理学进展,26(2):701~708.
陈毓川,裴荣富,张宏良.1989.南岭地区与中生代花岗岩类有关的有色及稀有金属矿床地质.北京:地质出版社,1~508.
高长荣.2007.井中激电在西霞矿区的应用.物探与化探,31(增刊):98 ~101.
华仁民.2005.南岭中生代陆壳重熔型花岗岩类成岩—成矿的时间差及其地质意义.地质论评,51(6):633~639.
华仁民,陈培荣,张文兰,姚军明,林锦富,张展适,顾晟彦.2005.南岭与中生代花岗岩类有关的成矿作用及其大地构造背景.高校地质学报,11(3):291~304.
李建康,王登红,梁婷,许以明,张怡军,梁华英,卢焕章,赵斌,李建国,屈文俊,周四春,王汝成,韦龙明,林锦福.2013.南岭区域成矿与深部探测的研究进展及其对西藏钨锡找矿的指示.地球学报,34(1):58~74.
刘善宝,王登红,陈毓川,许建祥,曾载林,应立娟,王成辉.2007.南岭东段赣南地区天门山花岗岩体及花岗斑岩脉的SHRIMP定年及其意义.地质学报,81(7):972~978.
吕庆田,侯增谦,杨竹森,史大年.2004.长江中下游地区的底侵作用及动力学演化模式:来自地球物理资料的约束.中国科学,34(9):783~794.
吕庆田.2007.我国东部深部找矿方向、找矿思路与勘查技术—以长江中下游成矿带为实例.见:主编中国地球物理学会第二十三届年会论文集.青岛:中国海洋大学出版社,12~19.
吕庆田,杨竹森,严加永,徐文艺.2007.长江中下游成矿带深部成矿潜力、找矿思路与初步尝试——以铜陵矿集区为实例.地质学报,81(7):865~881.
吕庆田,史大年,汤井田,吴明安,常印佛,SinoProbe-03-CJ项目组.2011a.长江中下游成矿带及典型矿集区深部结构探测—SinoProbe-03年度进展综述.地球学报,32(3):257~268.
吕庆田,常印佛,SinoProbe-03项目组.2011b.地壳结构与深部矿产资源立体探测技术实验—SinoProbe-03项目介绍.地球学报,32(增刊):49~64.
毛景文,谢桂青,郭春丽,陈毓川.2007.南岭地区大规模钨锡多金属成矿作用:成矿时限及地球动力学背景.岩石学报,23(10):2329~2338.
南亲江.2008.定向扫描成像测井技术在利国铁矿的应用.金属矿山,38(4):113~116.
潘建西.2010.井中激电测井在金属矿勘探中的应用.西北地质,43(2):190~194.
陶德益,杨海燕,肖明尧,高宝龙,舒秀峰.2011.井中磁测在大冶铁矿深部勘查中的应用效果.资源环境与工程,25(4):358~363.
王登红,陈毓川,陈郑辉,刘善宝,许建祥,张家菁,曾载淋,陈富文,李华芹,郭春丽.2007.南岭地区矿产资源形势分析和找矿方向研究.地质学报,81(7):882~890.
王登红,陈富文,张永忠.2011.南岭地区有色—贵金属成矿潜力及综合探测技术示范研究.北京:地质出版社,472.
习宇飞,刘天佑,刘双.2012.井中磁测三分量联合反演.石油地球物理勘探,47(2):344~352.
肖昆,邹长春,周新鹏,项彪,王丽忱.2013.南岭科学钻探NLSD-1孔井中磁测资料分析.金属矿山,42(1):107~109.
徐新学,李荣光,孙磊,常响广.2012.全方位激电测井在老挝华潘铜铁多金属矿勘查中的应用.物探与化探,36(1):23~26.
严加永,滕吉文,吕庆田.2008.深部金属矿产资源地球物理勘查与应用.地球物理学进展,23(3):871~891.
颜廷杰,朱谷昌.2011.井中磁测在矿区找矿中的应用效果及经验.矿产勘查,2(6):789~794.
羊士赣,王瑞湖.2004.南岭西段锡矿类型与找矿前景.矿产与地质,18 (3):207~211.
曾载淋,张永忠,陈郑辉,陈毓川,朱祥培,童启荃,郑兵华,周瑶.2011.江西于都县盘古山钨铋(碲)矿床地质特征及成矿年代学研究.矿床地质,30(5):949~958.
翟裕生,邓军,王建平,彭润民,刘家军,杨立强.2004.深部找矿研究问题.矿床地质,23(2):142~149.
周平,陈胜礼,朱丽丽.2009.几种金属矿地下物探方法评述.地质通报,28(2/3):224~231.
Goleby BR,Blewett RS,Korsch RJ,Champion DC,Cassidy KF,Jones LEA,Groenewald PB,Henson P.2004.Deep seismic reflection profiling in the Archaean northeastern YilgarnCration,Western Australia:implications for crustal architecture and mineral potential.Tectonophysics,388:119~133.
Jiang Guoming,Zhang Guibin,LüQingtian,Shi Danian,Xu Yao.2013.3-D Velocity model beneath the Middle-Lower Yangtze River and its implication to the deep geodynamics.Tectonophysics,606:36~47.
LüQingtian,Yan Jiayong,Shi Danian,Dong Shuwen,Tang
Jingtian,Wu Mingan,Chang Yinfo.2013.Reflection seismic imaging of the Lujiang-Zongyang volcanic basin,Yangtze metallogenic belt:An insight into the crustal structure and geodynamics of an ore district.Tectonophysics,606:60~77.
Malehmir A,Thunehed H,Tryggvason A.2009.The PaleoproterozoicKristineberg mining area,northernSweden:Results from integrated 3Dgeophysical and geologic modeling and implications for targeting ore deposits.Geophysics,74(1):B9~B22.
Milkereit Bernd,Eaton David,Wu J,Perron G,Salisbury Matthew H,Berrer E K,Morrison G.1992.Seismic imaging of massive sulfide deposits:Part II:Reflection seismic profiling.Geology,20:807~811.
Shi Danian,LüQingtian,Xu Wenyi,Yan Jiayong,Zhao Jinhua,Dong Shuwen,Chang Yinfo.2013.Crustal structure beneath the Middle-Lower Yangtze metallogenic belt in east China:Constraints from passive source seismic experiment on the Mesozoic intra-continental mineralization.Tectonophysics,606 :48~59.
Tang Jingtian,Zhou Cong,Wang Xianying,Xiao Xiao,LüQingtian.2013.Deep electrical structure and geological significance of Tongling ore district.Tectonophysics,606:78~96.
曹令敏.2011.地球物理方法在金属矿深部找矿中的应用及展望.地球物理学进展,26(2):701~708.
陈毓川,裴荣富,张宏良.1989.南岭地区与中生代花岗岩类有关的有色及稀有金属矿床地质.北京:地质出版社,1~508.
高长荣.2007.井中激电在西霞矿区的应用.物探与化探,31(增刊):98 ~101.
华仁民.2005.南岭中生代陆壳重熔型花岗岩类成岩—成矿的时间差及其地质意义.地质论评,51(6):633~639.
华仁民,陈培荣,张文兰,姚军明,林锦富,张展适,顾晟彦.2005.南岭与中生代花岗岩类有关的成矿作用及其大地构造背景.高校地质学报,11(3):291~304.
李建康,王登红,梁婷,许以明,张怡军,梁华英,卢焕章,赵斌,李建国,屈文俊,周四春,王汝成,韦龙明,林锦福.2013.南岭区域成矿与深部探测的研究进展及其对西藏钨锡找矿的指示.地球学报,34(1):58~74.
刘善宝,王登红,陈毓川,许建祥,曾载林,应立娟,王成辉.2007.南岭东段赣南地区天门山花岗岩体及花岗斑岩脉的SHRIMP定年及其意义.地质学报,81(7):972~978.
吕庆田,侯增谦,杨竹森,史大年.2004.长江中下游地区的底侵作用及动力学演化模式:来自地球物理资料的约束.中国科学,34(9):783~794.
吕庆田.2007.我国东部深部找矿方向、找矿思路与勘查技术—以长江中下游成矿带为实例.见:主编中国地球物理学会第二十三届年会论文集.青岛:中国海洋大学出版社,12~19.
吕庆田,杨竹森,严加永,徐文艺.2007.长江中下游成矿带深部成矿潜力、找矿思路与初步尝试——以铜陵矿集区为实例.地质学报,81(7):865~881.
吕庆田,史大年,汤井田,吴明安,常印佛,SinoProbe-03-CJ项目组.2011a.长江中下游成矿带及典型矿集区深部结构探测—SinoProbe-03年度进展综述.地球学报,32(3):257~268.
吕庆田,常印佛,SinoProbe-03项目组.2011b.地壳结构与深部矿产资源立体探测技术实验—SinoProbe-03项目介绍.地球学报,32(增刊):49~64.
毛景文,谢桂青,郭春丽,陈毓川.2007.南岭地区大规模钨锡多金属成矿作用:成矿时限及地球动力学背景.岩石学报,23(10):2329~2338.
南亲江.2008.定向扫描成像测井技术在利国铁矿的应用.金属矿山,38(4):113~116.
潘建西.2010.井中激电测井在金属矿勘探中的应用.西北地质,43(2):190~194.
陶德益,杨海燕,肖明尧,高宝龙,舒秀峰.2011.井中磁测在大冶铁矿深部勘查中的应用效果.资源环境与工程,25(4):358~363.
王登红,陈毓川,陈郑辉,刘善宝,许建祥,张家菁,曾载淋,陈富文,李华芹,郭春丽.2007.南岭地区矿产资源形势分析和找矿方向研究.地质学报,81(7):882~890.
王登红,陈富文,张永忠.2011.南岭地区有色—贵金属成矿潜力及综合探测技术示范研究.北京:地质出版社,472.
习宇飞,刘天佑,刘双.2012.井中磁测三分量联合反演.石油地球物理勘探,47(2):344~352.
肖昆,邹长春,周新鹏,项彪,王丽忱.2013.南岭科学钻探NLSD-1孔井中磁测资料分析.金属矿山,42(1):107~109.
徐新学,李荣光,孙磊,常响广.2012.全方位激电测井在老挝华潘铜铁多金属矿勘查中的应用.物探与化探,36(1):23~26.
严加永,滕吉文,吕庆田.2008.深部金属矿产资源地球物理勘查与应用.地球物理学进展,23(3):871~891.
颜廷杰,朱谷昌.2011.井中磁测在矿区找矿中的应用效果及经验.矿产勘查,2(6):789~794.
羊士赣,王瑞湖.2004.南岭西段锡矿类型与找矿前景.矿产与地质,18 (3):207~211.
曾载淋,张永忠,陈郑辉,陈毓川,朱祥培,童启荃,郑兵华,周瑶.2011.江西于都县盘古山钨铋(碲)矿床地质特征及成矿年代学研究.矿床地质,30(5):949~958.
翟裕生,邓军,王建平,彭润民,刘家军,杨立强.2004.深部找矿研究问题.矿床地质,23(2):142~149.
周平,陈胜礼,朱丽丽.2009.几种金属矿地下物探方法评述.地质通报,28(2/3):224~231.
Goleby BR,Blewett RS,Korsch RJ,Champion DC,Cassidy KF,Jones LEA,Groenewald PB,Henson P.2004.Deep seismic reflection profiling in the Archaean northeastern YilgarnCration,Western Australia:implications for crustal architecture and mineral potential.Tectonophysics,388:119~133.
Jiang Guoming,Zhang Guibin,LüQingtian,Shi Danian,Xu Yao.2013.3-D Velocity model beneath the Middle-Lower Yangtze River and its implication to the deep geodynamics.Tectonophysics,606:36~47.
LüQingtian,Yan Jiayong,Shi Danian,Dong Shuwen,Tang
Jingtian,Wu Mingan,Chang Yinfo.2013.Reflection seismic imaging of the Lujiang-Zongyang volcanic basin,Yangtze metallogenic belt:An insight into the crustal structure and geodynamics of an ore district.Tectonophysics,606:60~77.
Malehmir A,Thunehed H,Tryggvason A.2009.The PaleoproterozoicKristineberg mining area,northernSweden:Results from integrated 3Dgeophysical and geologic modeling and implications for targeting ore deposits.Geophysics,74(1):B9~B22.
Milkereit Bernd,Eaton David,Wu J,Perron G,Salisbury Matthew H,Berrer E K,Morrison G.1992.Seismic imaging of massive sulfide deposits:Part II:Reflection seismic profiling.Geology,20:807~811.
Shi Danian,LüQingtian,Xu Wenyi,Yan Jiayong,Zhao Jinhua,Dong Shuwen,Chang Yinfo.2013.Crustal structure beneath the Middle-Lower Yangtze metallogenic belt in east China:Constraints from passive source seismic experiment on the Mesozoic intra-continental mineralization.Tectonophysics,606 :48~59.
Tang Jingtian,Zhou Cong,Wang Xianying,Xiao Xiao,LüQingtian.2013.Deep electrical structure and geological significance of Tongling ore district.Tectonophysics,606:78~96.