天然气地球科学

• 天然气地球化学 • 上一篇    下一篇

鄂尔多斯盆地中东部下古生界奥陶系自生自储气地球化学特征

刘丹1,冯子齐1,刘洋2,彭威龙1,韩文学1   

  1. 1.中国石油勘探开发研究院,北京 100083;
    2.天津华北地质勘查局核工业二四七大队,天津301800
  • 收稿日期:2015-12-17 修回日期:2016-04-25 出版日期:2016-10-10 发布日期:2016-10-10
  • 作者简介:刘丹(1986-),女,河北廊坊人,博士研究生,主要从事天然气地质与地球化学研究. E-mail:liudan829@163.com.
  • 基金资助:
    中国石油天然气股份有限公司“中国煤成气地球化学与成藏机制规律研究”项目(编号:2014B-0608)资助.

Geochemistry of the self-generated and self-accumulated gasof Lower Paleozoic in Ordos Basin,China

Liu Dan1,Feng Zi-qi1,Liu Yang2,Peng Wei-long1,Han Wen-xue1   

  1. 1.PetroChina Research Institute of Petroleum Exploration & Development,Beijing 100083,China;
    2.Tianjin North China Geological Exploration Bureau of Nuclear Industry 247 Brigade,Tianjin 301800,China
  • Received:2015-12-17 Revised:2016-04-25 Online:2016-10-10 Published:2016-10-10

摘要: 对鄂尔多斯盆地下古生界气源的争议已有30多年,主要观点包括以上古生界煤成气为主和以下古生界海相油型气为主。近年来学者们通过分区域、分层位研究,认为盆地不同地区由于源储配置情况有异,盆地不同地区下古生界气中上、下古生界来源气混源比例不同,应分别讨论。细化的研究使下古生界气源问题的争议得到了一定程度的调和,但同时混源比例计算等也使得2个前提问题变得尤为重要:①下古生界是否存在自生自储气;②下古生界自生自储气地球化学特征如何。结合测井数据对近年来最新勘探井的下古生界烃源岩进行了评价,证实了下古生界有效烃源岩的存在。通过对奥陶系马家沟组盐下(奥陶系马五6巨厚膏盐岩以下)天然气地球化学特征与盐上(上古生界及奥陶系风化壳)天然气组分、碳同位素对比,指出下古生界海相烃源岩原生气具有δ13C1<-35‰、δ13C2<-28‰的特征。

关键词: 鄂尔多斯盆地, 下古生界, 油型气, 海相

Abstract: There has been dispute on the origin of Lower Paleozoic gas in Ordos Basin for more than 30 years.Two main opinions include the Upper Paleozoic coal-derived origin and the Lower Paleozoic carbonate origin.In recent years,researchers began to study the origin of the Lower Paleozoic gas in Ordos Basin by region or by strata.It is believed that different regions of the basin have different constitution of source rock and reservoir.So the Lower Paleozoic gas in different part of the basin has different percent of gas mixed from the Upper and Lower Paleozoic gas.The deep discussion has made the gas origin more clearly.However,it also raised two questions when it comes to the calculation of the mixing percent from the Upper and Lower Paleozoic gas:(1)Whether the Lower Paleozoic source rock could generate self-preserved gas? If the answer is yes,then;(2)What are the characteristics of the self-generated and self-accumulated gas of Lower Paleozoic source rock? In this paper,we combined the log data into the evaluation of source rock,and the TOC result reveals that effective source rock exists in Lower Paleozoic.Also we compared the geochemistry of Lower Paleozoic gas below salt and gas above salt and found that the gas generated from the Lower Paleozoic source rock all has δ13C1<-35‰ and δ13C2<-28‰.

Key words: Ordos Basin, Lower Paleozoic, Oil-associated gas, Marine

中图分类号: 

  • TE122.1+13

[1]Dai Jinxing,Wu Wei,Fang Chenchen,et al.Exploration and development of large gas fields in China since 2000[J].Natural Gas Industry,2015,35(1):1-9.[戴金星,吴伟,房忱琛,等.2000年以来中国大气田勘探开发特征[J].天然气工业,2015,35(1):1-9.][JP]
[2]Dai J,Li J,Luo X,et al.Stable carbon isotope compositions and source rock geochemistry of the giant gas accumulations in the Ordos Basin,China[J].Organic Geochemistry,2005,36:1617-1635.
[3]Xia Xinyu,Zhao lin,Li Jianfeng,et al.Geochemical characteristics and source rocks of Ordovician gas reservoirs,Changqing Gasfield[J].Chinese Science Bulletin,1999,44(10):1116-1119.[夏新宇,赵林,李剑锋,等.长庆气田天然气地球化学特征及奥陶系气藏成因[J].科学通报,1999,44(10):1116-1119.][JP]
[4]Huang Difan,Xiong Chuanwu,Yang Junjie,et al.Identification of origin of central gas field of Ordos Basin[J].Chinese Science Bulletin,1996,41(17):1588-1592.[黄第藩,熊传武,杨俊杰,等.鄂尔多斯盆地中部大气田的气源判识[J].科学通报,1996,41(17):1588-1592.]
[5]Zhang C,Sun F,Liu R,et al.Bitumen and hydrocarbon generation potential of paleo-reservoirs in the Ordovician,south Ordos Basin[J].Petroleum Exploration and Development,2010,37(6):668-673.
[6]Liu Dehan,Fu Jinhua,Zheng Congbin,et al.Research on hydrocarbon generation of Ordovician marine carbonatite of the Ordos Basin and genesis of Changqing Gasfields[J].Acta Geologica Sinica,2004(4):542-550.[刘德汉,付金华,郑聪斌,等.鄂尔多斯盆地奥陶系海相碳酸盐岩生烃性能与中部长庆气田气源成因研究[J].地质学报,2004(4):542-550.]
[7]Liu Q,Chen M,Liu W,et al.Origin of natural gas from the Ordovician paleo-weathering crust and gas-filling model in Jingbian Gasfield,Ordos Basin,China[J].Journal of Asian Earth Sciences,2009,35:74-88.
[8]Wu Zheng,Yang Yuanchu,Wang Xinhong.An analysis of the original-coexisting bitumen in Lower Ordovician in Ordos Basin[J].Natural Gas Industry,1999,19(6):14-17.[吴征,杨元初,王新红.鄂尔多斯盆地下奥陶统原生—同层沥青分析[J].天然气工业,1999,19(6):14-17.]
[9]Chen Anding.Feature of mixed gas in central gasfield of Ordos Basin[J].Petroleum Exploration & Development,2002,29(2):33-38.[陈安定.论鄂尔多斯盆地中部气田混合气的实质[J].石油勘探与开发,2002,29(2):33-38.]
[10]Ma Chunsheng,Xu Huazheng,Gong Changhong,et al.Paleo-oil reservoir and Jingbian natural gasfield of Ordovician weathering crust in Ordos Basin[J].Natural Gas Geoscience,2011,22(2):280-286.[马春生,许化政,宫长红,等.鄂尔多斯盆地中央隆起带奥陶系风化壳古油藏与靖边大气田关系[J].天然气地球科学,2011,22(2):280-286.]
[11]Xianqing L,Guoyi h,Jian L.The characteristics and sources of natural gases Central Gas Field in the Ordos Basin[J].Chinese Journal of Geochemistry,2008,2(27):109-120.
[12]Zhao Jingzhou,Wang Daxing,Sun Liuyi,et al.,Origin of the Ordovician gas and its accumulation patterns in northwestern Ordos Basin[J].Oil &Gas Geology,2015,36:711-720.[赵靖舟,王大兴,孙六一,等.鄂尔多斯盆地西北部奥陶系气源及其成藏规律[J].石油与天然气地质,2015,36:711-720.]
[13]Yang Hua,Zhang Wenzheng,Zan Chuanli,et al.Geochemical characteristics of Ordovician subsalt gas reservoir and their significance for reunderstanding the gas source of Jingbian Gasfield,east Ordos Basin[J].Natural Gas Geoscience,2009,20(1):8-14.[杨华,张文正,昝川莉,等.鄂尔多斯盆地东部奥陶系盐下天然气地球化学特征及其对靖边气田气源再认识[J].天然气地球科学,2009,20(1):8-14.]
[14]Yang Hua,Bao Hongping.Characteristics of hydrocarbon accumulation in the Middle Ordovician assemblages and their significance for gas exploration in the Ordos Basin[J].Natural Gas Industry,2011,31(12):11-20.[杨华,包洪平.鄂尔多斯盆地奥陶系中组合成藏特征及勘探启示[J].天然气工业,2011,31(12):11-20.]
[15]Yang Hua,Fu Jinhua,Wei Xinshan,et al.Natural gas exploration domains in Ordovician marine carbonates,Ordos Basin[J].Acta Petrolei Sinica,2011,32(5):733-740.[杨华,付金华,魏新善,等.鄂尔多斯盆地奥陶系海相碳酸盐岩天然气勘探领域[J].石油学报,2011,32(5):733-740.]
[16]Cai C,Hu G,He H,et al.Geochemical characteristics and origin of natural gas and thermochemical sulphate reduction in Ordovician carbonates in the Ordos Basin,China[J].Journal of Petroleum Science and Engineering,2005,48:209-226.
[17]Dai Jinxing,Zou Caineng,Li Wei,et al.Large coal-derived gas fields in China and their sources[M].Beijing:Science Press,2014:416-420.[戴金星,邹才能,李伟,等.中国煤成大气田及气源[M].北京:科学出版社,2014:416-420.]
[18]Wei Caiyun,Wang Huitong,Wang Hui,et al.Study on chloroform bitumen “A” exacted from rock using acceleraataed solvent extraction instrument[J].Modern Science Instrument,2009,2(12):96-98.[魏彩云,王汇彤,王慧,等.快速溶剂抽提仪萃取岩石中氯仿沥青“A”方法探索[J].现代科学仪器,2009,2(12):96-98.]
[19]Yu Cong,Huang Shipeng,Gong Deyu,et al.Partial reversal cause of carbon and hydrogen isotope compositions of natural gas:A case study in Sulige Gasfield,Ordos Basin[J].Acta Petrolei Sinica,2013,34(S1):92-101.[于聪,黄士鹏,龚德瑜,等.天然气碳、氢同位素部分倒转成因——以苏里格气田为例[J].石油学报,2013,34(S1):92-101.]
[20]Xia Xinyu.Hydrocarbon Potential Evaluation of Carbonates and Source Rock Correlation of the Changqing Gasfield[M].Beijing:Petroleun Industry Press,2000:48-51.[夏新宇.碳酸盐岩生烃与长庆气田气源[M].北京:石油工业出版社,2000:48-51.]
[21]Jin Qiang,Huang Zhi,Li Weizhen,et al.Sedimentary models of Ordovician source rocks in Ordos Basin and their hydrocarbon generation potential[J].Acta Geologica Sinica,2013,87(3):393-402.[金强,黄志,李维振,等.鄂尔多斯盆地奥陶系烃源岩发育模式和天然气生成潜力[J].地质学报,2013,87(3):393-402.][JP]
[22]Wang Wanchun,Zheng Jianjing,Wang Xiaofeng,et al.Comparisons of geochemical characteristics of Ordovician Majiagou carbonate rocks between west and south and central and east regions of Ordos Basin[J].Natural Gas Geoscience,26(3):513-523.[王万春,郑建京,王晓锋,等.鄂尔多斯盆地西南部与中东部奥陶系马家沟组碳酸盐岩地球化学特征对比[J].天然气地球科学,2015,26(3):513-523.]
[23]Dai Jinxing.Identification of different kinds of natural gas[J].Science in China:Series B,1992,22(2):185-193.[戴金星.各类烷烃气的鉴别[J].中国科学:B辑,1992,22(2):185-193.][JP]
[24]Yang Hua,Bao Hongping,Ma Zhanrong.Reservoir-forming by lateral supply of hydrocarbon:A new understanding of the formation of Ordovician gas reservoirs under gypsolyte in the Ordos Basin[J].Natural Gas Industry,2014,34(4):19-26.[杨华,包洪平,马占荣.侧向供烃成藏——鄂尔多斯盆地奥陶系膏盐岩下天然气成藏新认识[J].天然气工业,2014,34(4):19-26.][JP]
[25]Mi Jingkui,Wang Xiaomei,Zhu Guangyou,et al.Origin determination of gas from Jingbian Gasfield in Ordos Basin collective through the geochemistry of gas from inclusions and source rock pyrolysis[J].Acta Petrologica Sinica,2012,28(3):859-869.[米敬奎,王晓梅,朱光有,等.利用包裹体中气体地球化学特征与源岩生气模拟实验探讨鄂尔多斯盆地靖边气田天然气来源[J].岩石学报,2012,28(3):859-869.]
[26]Tilley B,Muehlenbachs K.Isotope reversals and universal stages and trends of gas maturation in sealed,self-contained petroleum systems[J].Chemical Geology,2013,339:194-204.
[27]Xia X,Chen J,Braun R,et al.Isotopic reversals with respect to maturity trends due to mixing of primary and secondary products in source rocks[J].Chemical Geology,2013,339:205-212.[JP]
[28]Machel H G,Krouse H R,Sassen R.Products and distinguishing criteria of bacterial and thermochemical sulfate reduction[J].Applied Geochemistry,1995,10:373-389.
[29]Worden R H,Smalley P C,Oxtoby N H.The effects of thermochemical sulfate reduction upon formation water salinity and oxygen isotopes in carbonate gas reservoirs[J].Geochimica et Cosmochimica Acta,1996,60:3925-3931.
[30]Prinzhofer A A,Huc A Y.Genetic and post-genetic molecular and isotopic fractionations in natural gases[J].Chemical Geology,1995,126(3/4):281-290.
[31]Behar F,Kressmann S,Rudkiewicz J L,et al.Experimental simulation in a confined system and kinetic modeling of kerogen and oil cracking[J].Advances in Organic Geochemistry,1991,19:173-189.
[32]Zeng H,Li J,Huo Q.A review of alkane gas geochemistry in the Xujiaweizi fault-depression,Songliao Basin[J].Marine and Petroleum Geology,2013,43:284-296.
[33]Zumberge J,Ferworn K,Brown S.Isotopic reversal(‘rollover’)in shale gases produced from the Mississippian Barnett and Fayetteville formations[J].Marine and Petroleum Geology,2012,31:43-52.

[1] 崔景伟, 朱如凯, 李森, 齐亚林, 时晓章, 毛治国, . 坳陷湖盆烃源岩发育样式及其对石油聚集的控制——以鄂尔多斯盆地三叠系延长组长7油层组为例[J]. 天然气地球科学, 2019, 30(7): 982-996.
[2] 李阳, 倪小明, 王延斌, 陶传奇. 鄂尔多斯盆地临兴地区上古生界压力特征及其成因机制[J]. 天然气地球科学, 2019, 30(7): 997-1005.
[3] 杨娟, 王作栋, 薄海波, 张婷, 吉生军, 王静莹. 下马岭组油页岩热模拟实验抽提物中三芴系列化合物演化特征[J]. 天然气地球科学, 2019, 30(7): 1063-1071.
[4] 秦胜飞, 白斌, 袁苗, 周国晓, 杨晋东. 四川盆地中部地区海相储层煤成气来源[J]. 天然气地球科学, 2019, 30(6): 790-797.
[5] 吴小奇, 倪春华, 陈迎宾, 朱建辉, 李贶, 曾华盛. 鄂尔多斯盆地定北地区上古生界天然气来源[J]. 天然气地球科学, 2019, 30(6): 819-827.
[6] 吴伟涛, 王一, 赵靖舟, 杨特波, 李军, 黄正良. 鄂尔多斯盆地中部奥陶系马家沟组中组合天然气成藏规律[J]. 天然气地球科学, 2019, 30(6): 828-839.
[7] 卫延召, 宋志华, 奇瑞, 王伟, 龚德瑜, 王峰. 准噶尔盆地陆梁隆起东部滴北凸起天然气成因来源再认识[J]. 天然气地球科学, 2019, 30(6): 840-849.
[8] 张成龙, 陶士振, 白斌, 王倩茹. 基于支持向量机模型的烃源岩有机碳含量预测——以鄂尔多斯盆地为例[J]. 天然气地球科学, 2019, 30(5): 761-768.
[9] 刘晓鹏, 赵会涛, 闫小雄, 贾亚妮, . 克拉通盆地致密气成藏地质特征与勘探目标优选——以鄂尔多斯盆地上古生界为例[J]. 天然气地球科学, 2019, 30(3): 331-343.
[10] 高阳, 王志章, 易士威, 佘源琦, 林世国, 李明鹏, 张春林, . 鄂尔多斯盆地天环地区盒8段致密砂岩岩石矿物特征及其对储层质量的影响[J]. 天然气地球科学, 2019, 30(3): 344-352.
[11] 孔庆芬 , 张文正, 李剑锋, 昝川莉, . 鄂尔多斯盆地奥陶系盐下天然气地球化学特征及成因[J]. 天然气地球科学, 2019, 30(3): 423-432.
[12] 孙兵华, 张廷山, . 鄂尔多斯盆地张家湾地区长7页岩油气储集特征及其影响因素[J]. 天然气地球科学, 2019, 30(2): 274-284.
[13] 张道锋, 姚泾利, 高星, 席明利, 赵会涛, 闫小雄, 付勋勋. 鄂尔多斯盆地奥陶系马五5亚段白云岩储层形成机理与展布规律[J]. 天然气地球科学, 2019, 30(1): 74-82.
[14] 朱立文, 王震亮, 张洪辉. 鄂尔多斯盆地乌审召地区山2亚段致密气“甜点”控因分析[J]. 天然气地球科学, 2018, 29(8): 1085-1093.
[15] 刘琴琴, 陈桂华, 陈晓智, 祝彦贺, 杨小峰. 鄂尔多斯盆地L地区上古生界上石盒子组物源特征及其对储层的控制作用[J]. 天然气地球科学, 2018, 29(8): 1094-1101.
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed   
[1] 施立志;林铁锋;王震亮;王卓卓;姚勇;. 库车坳陷下白垩统天然气运聚系统与油气运移研究[J]. 天然气地球科学, 2006, 17(1): 78 -83 .
[2] 刘洪军;贾亚妮;李振宏;郑聪斌;. 岩溶盆地中微隆起带的存在及意义――以鄂尔多斯盆地奥陶纪岩溶古地貌为例[J]. 天然气地球科学, 2006, 17(4): 490 -493 .
[3] USGS,郑军卫(译). 美国地质调查局油气资源研究计划[J]. 天然气地球科学, 2002, 13(3-4): 15 .
[4] 李桂菊, 庄新国. 多年冻土区沉积物中甲烷的生成[J]. 天然气地球科学, 2004, 15(5): 516 -518 .
[5] 吴向华,程同锦,邓天龙 . 油气化探分析检测技术现状及发展趋势[J]. 天然气地球科学, 2005, 16(1): 78 -81 .
[6] 李士祥;胡明毅;李霞;. 榆林气田山西组2段砂岩成岩作用及孔隙演化[J]. 天然气地球科学, 2005, 16(2): 200 -205 .
[7] 刘文汇;黄第藩;熊传武;徐永昌;. 成烃理论的发展及国外未熟―低熟油气的分布与研究现状[J]. 天然气地球科学, 1999, 10(1-2): 1 -22 .
[8] 吴时国;袁圣强;. 世界深水油气勘探进展与我国南海深水油气前景[J]. 天然气地球科学, 2005, 16(6): 693 -699 .
[9] 朱维耀;宋洪庆; 何东博;王明 ;贾爱林;胡永乐 . 含水低渗气藏低速非达西渗流数学模型及产能方程研究[J]. 天然气地球科学, 2008, 19(05): 685 -689 .
[10] 杨永剑, 刘家铎, 田景春, 孟万斌, 张翔, 祝贺, 杨忠亮. 塔里木盆地下石炭统巴楚组岩相古地理特征及演化[J]. 天然气地球科学, 2011, 22(1): 81 -88 .