赵帮胜;李荣西;王香增;吴向阳;王宁;覃小丽;程敬华;李佳佳;

• 1:长安大学地球科学与资源学院
• 2:陕西延长石油集团研究院
• 3:陕西延长石油集团杏子川采油厂

摘要(Abstract)：

通过主量元素和微量元素分析,应用沉积地球化学方法对采自于鄂尔多斯盆地中部两口页岩气探井的泥页岩沉积地球化学特征和有机质保存条件进行了研究。结果表明:1化学蚀变指数(CIA)和Sr/Cu比值反映本区山西期为温湿气候,Rb/Zr比值反映本区山西组泥页岩沉积水体较浅;2w(Th)-w(Zr)、w(Th)-Y/Ho相关性图解以及Y/Ho比值更接近于陆源碎屑物质,表明本区山西组泥页岩沉积时主要来源为陆源碎屑物质;3V/Cr比值、V/(V+Ni)比值、δU和Th/U比值表明山西组泥页岩形成于以弱还原环境为主的弱氧化-弱还原环境;4Sr/Ba和TOC/S比值反映本区山西组沉积水体以淡水为主,并兼有少量混合水;5地球化学综合分析表明,山西组泥页岩沉积水体富氧,缺少有机质保存的还原条件,有机质被氧化分解,不利于后期生烃。

关键词(KeyWords)： 鄂尔多斯盆地;泥页岩;沉积环境;主量元素;微量元素;保存条件

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(41173055)

作者(Author): 赵帮胜;李荣西;王香增;吴向阳;王宁;覃小丽;程敬华;李佳佳;

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参考文献(References)：

• [1]张金川,金之钧,袁明生.页岩气成藏机理和分布[J].天然气工业,2004,24(7):15-18.
• [2]张金川,姜生玲,唐玄,等.我国页岩气富集类型及资源特点[J].天然气工业,2009,29(12):109-114.
• [3]Hicky J H,Henk B.Lithofacies summary of the Mississippian Barnett shale,Mitchell 2T.P.Sims well,Wise County,Texas[J].AAPG Bulletin,2007,91(4):437-443.
• [4]Loucks R G,Ruppel S C.Mississippian Barnett shale:Lithofacies and depositional setting of a deep-water shale-gas succession in the Forth Worth Basin,Texas[J].AAPG Bulletin,2007,91(4):523-553.
• [5]Harris N B,Mnich C A,Selby D,et al.Minor and trace element and Re-Os chemistry of the Upper Devonian Woodford Shale,Permian Basin,west Texas:Insights into meyal abundance and basin process[J].Chemical Geology,2013,365:76-93.
• [6]Chermak J A,Schreiber M E.Mineralogy and trace lenment geochemistry of gas shales in the United States:Environmental implications[J].International Journal of Coal Geology,2014,126:32-44.
• [7]Wang Guochang,Carr T R.Methodology of organic-rich shale lithofacies identification and prediction:A case study from Marcellus Shale in the Appalachian basin[J].Computers&Geosciences,2012,49:151-163.
• [8]Demaison G J,Moore G T.Anoxic environments and oil source bed genesis[J].AAPG Bulletin,1980,64(8):1179-1209.
• [9]Arthur M A,Dean W E.Organic matter production and preservation and evolution of anoxia in the Holocene Black Sea[J].Paleoceanography,1998,13(4):395-411.
• [10]Jenkyns H C,Géczy B,Marshall J D.Jurassic manganese carbonates of central Europe and the early Toarcian anoxic event[J].The Journal of Geology,1991,99(2):137-149.
• [11]Demaison G,Huizinga B J.Genetic classification of petroleum systems(1)[J].AAPG Bulletin,1991,75(10):1626-1643.
• [12]Canfield D E.Sulfate reduction and oxic respiration in marine sediments:Implications for organic carbon preservation in euxinic environments[J].Deep Sea Research Part A.Oceanographic Research Papers,1989,36(1):121-138.
• [13]Sinninghe-Damste J S,Ripjstra W I C,Kock-van Dalen A C,et al.Quenching of labile functionalized lipids by inorganic sulfur compounds at the early stage of diagenesis[J].Geochimica et Cosmochimica Acta,1989,53(6):1343-1355.
• [14]Montgomery S L,Jarvie D M,Bowker K A,et al.Mississippian barnett shale,Fort Worth basin,north-central Texas:Gasshale play with multi-trillion cubic foot potential[J].AAPG Bulletin,2005,89(2):155-175.
• [15]王永炜,高胜利,高潮.鄂尔多斯盆地延长探区陆相页岩气勘探[J].地质科技情报,2014,33(6):88-98.
• [16]陈洪德,李洁,张成弓,等.鄂尔多斯盆地山西组沉积环境讨论及其地质启示[J].岩石学报,2011,27(8):2213-2229.
• [17]杨伟利,王毅,孙宜朴,等.鄂尔多斯盆地南部上古生界天然气勘探潜力[J].天然气工业,2009,29(12):13-16.
• [18]付金华,郭少斌,刘新社,等.鄂尔多斯盆地上古生界山西组页岩气成藏条件及勘探潜力[J].吉林大学学报:地球科学版,2013,43(2):382-389.
• [19]宫美林,丁文龙,皮冬冬,等.鄂尔多斯盆地东南部下寺湾-云岩区二叠系山西组页岩气形成条件[J].东北石油大学学报,2013,37(3):1-10.
• [20]赵振宇,郭彦如,王艳,等.鄂尔多斯盆地构造演化及古地理特征研究进展[J].特种油气藏,2012,19(5):15-20.
• [21]杨俊杰,裴锡古.中国天然气地质学(卷四):鄂尔多斯盆地[M].北京:石油工业出版社,1992:4-9.
• [22]王社教,李登华,李建忠,等.鄂尔多斯盆地页岩气勘探潜力分析[J].天然气工业,2011,31(12):40-46
• [23]张泓,何宗莲,晋香兰,等.鄂尔多斯盆地构造演化与成煤作用:1∶500 000鄂尔多斯盆地地质构造图简要说明[M].北京:地质出版社,2005.
• [24]Gromet L P,Dymek R F,Haskin L A,et al.The North American shale composite:Its compilation,major and trace element characteristics[J].Geochimica et Cosmochimica Acta,1984,48(12):2469-2482.
• [25]鄢明才,迟清华,顾铁新,等.中国东部地壳元素丰度与岩石平均化学组成研究[J].物探与化探,1997,21(6):451.
• [26]McLennan S M,Hemming S,McDaniel D K,et al.Geochemical approaches to sedimentation,provenance,and tectonics[J].Geological society of America Special Paper,1993,284:21-40.
• [27]Nesbitt H W,Young G M.Early Proterozoic climates and plate motions inferred from major element chemistry of lutites[J].Nature,1982,299:715-717.
• [28]邓宏文,钱凯.沉积地球化学与环境分析[M].兰州:甘肃科学技术出版社,1993.
• [29]腾格尔,刘文汇,徐永昌,等.无机地球化学参数与有效烃源岩发育环境的相关研究[J].地球科学进展,2005,20(2):193-200.
• [30]胡修棉,王成善.古海洋溶解氧研究方法综述[J].地球科学进展,2001,16(1):65-71.
• [31]Jones B,Manning D A C.Comparison of geochemical indices used for the interpretation of palaeoredox conditions in Acient Mudrocks[J].Chemical Geology,1994,111(1/4):111-129.
• [32]Wingnall P B.Black shales[M].Oxford:Charendon Press,1994:45-89.
• [33]吴朝东,杨承运,陈其英.湘西黑色岩系地球化学特征和成因意义[J].岩石矿物学杂志,1999,18(1):26-39.
• [34]Kimura H,Watanabe Y.Ocean anoxia at the PrecambrianCambrian boundary[J].Geology,2001,29:995-998.
• [35]Wignall P B,Twitchett R J.Oceanic anoxia and the end Permian mass extinction[J].Science,1996,272:1155-1158.
• [36]郑荣才,柳梅青.鄂尔多斯盆地长6油层组古盐度研究[J].石油与天然气地质,1999,20(1):20-25.
• [37]张茂盛,胡晓静.微量元素在地质沉积环境中的应用[J].光谱仪器与分析,2001,18(10):154-160.
• [38]Berner R A.Sedimentary pyrite formation:An update[J].Geochimica et Cosmochimica Acta,1984,48(4):605-615.
• [39]熊国庆,江新胜,蔡习尧,等.藏南白垩系泥、页岩微量、稀土元素特征及氧化-还原环境分析[J].地球科技进展,2010,25(7):730-745.
• [40]Piper D Z.Seawater as the source of minor elements in black shales,phosphorites and other sedimentary rocks[J].Chemical Geology,1994,114(1/2):95-114.
• [41]Bau M,Dulski P.Distribution of yttrium and rare-earth elements in the Penge and Kuruman iron-formations,Transvall Supergroup,South Africa[J].Precambrian Research,1996,79(1/2):37-55.
• [42]徐林刚,Bernd LEHMANN,张锡贵,等.云南昆阳磷矿黑色页岩微量元素特征及其地质意义[J].岩石学报,2014,30(6):1817-1827.
• [43]Tribovillard N,Algeo T J,Lyons T,et al.Trace metals as paleoredox and paleoproductivity proxies:An update[J].Chemical Geology,2006,232(1/2):12-32.
• [44]Hallberg R O A.Geochemical method for investigation of paleordox condition in sediments[J].Ambio Special Report,1976,4:139-147.
• [45]Brumsack H J.Rezente,corg-reiche sedimente als schlussel zum verstandnis forriler schwarzschiefer[M].J Habilitation:Gottingen University,1988:166.
• [46]Dean W E,Arthur M A.Iron-sulfur-carbon relationships in organic-carbon-rich sequences I:Cretaceous western interior seaway[J].American Journal of Science,1989,289:708-743.
• [47]Raiswell R,Buckley F,Berner R A,et al.Degree of pyritization of iron as a paleoenvironment indicator of bottom-water oxygenation[J].Journal of Sedimentary Research,1988,58(5):812-819.