Genesis and source of the Ordovician mid-assemblage natural gas in the east side of the central paleo-uplift, Ordos Basin

doi:10.7623/syxb201607001

Acta Petrolei Sinica ›› 2016, Vol. 37 ›› Issue (7): 821-831.DOI: 10.7623/syxb201607001

• Petroleum Exploration • Next Articles

Genesis and source of the Ordovician mid-assemblage natural gas in the east side of the central paleo-uplift, Ordos Basin

Li Jun^1,2, Zhao Jingzhou^1,2, Wang Daxing³, Sun Liuyi³, Ren Junfeng³, Wu Chunying³, Wu Weitao^1,2, Zhao Zilong^1,2, Qu Futao^1,2

1. School of Earth Sciences and Engineering, Xi'an Shiyou University, Shaanxi Xi'an 710065, China;
2. Shaanxi Key Laboratory of Petroleum Accumulation Geology, Shaanxi Xi'an 710065, China;
3. Exploration & Development Research Institute, PetroChina Changqing Oilfield Company, Shaanxi Xi'an 710018, China

Received:2015-11-05 Revised:2016-04-18 Online:2016-07-25 Published:2016-07-28

鄂尔多斯盆地中央古隆起东侧奥陶系中组合天然气成因与来源

李军^1,2, 赵靖舟^1,2, 王大兴³, 孙六一³, 任军峰³, 武春英³, 吴伟涛^1,2, 赵子龙^1,2, 曲付涛^1,2

1. 西安石油大学地球科学与工程学院陕西西安 710065;
2. 陕西省油气成藏地质学重点实验室陕西西安 710065;
3. 中国石油长庆油田公司勘探开发研究院陕西西安 710018

通讯作者: 李军,男,1982年12月生,2006年获西安石油大学学士学位,2012年获中国石油大学(北京)博士学位,现为西安石油大学地球科学与工程学院讲师,主要从事油气成藏地质学、非常规油气地质与勘探方面的教学与科研工作。Email:lijun@xsyu.edu.cn
基金资助:
国家自然科学基金项目（No.41502132）和国家重大科技专项（2011ZX05007-004）资助。

Abstract

Abstract:

With the continuous deepening of Ordovician natural gas exploration in Ordos Basin, a great advancement has been achieved in the mid-assemblage natural gas exploration of Sub-member 5 to Sub-member 10 of Member 5, Ordovician Majiagou Formation in the east side of the central paleo-uplift. However, there is still insufficient research on the genesis and source of natural gas. Based on the geochemical characteristics of natural gas, the development characteristics of paleo-oil reservoirs and other analysis results, in combination with geological conditions of natural gas accumulation, the genesis and source of Ordovician mid-assemblage natural gas in the east side of the central paleo-uplift, Ordos Basin are determined. The research indicates that Ordovician mid-assemblage natural gas in Ordos Basin is a mixture of the coal-type gas derived from Upper Paleozoic coaly source rocks and the oil-associated gas generated from Lower Paleozoic carbonate rocks, dominated by Upper Paleozoic coal-type gas. Among the current natural gas compositions of gas reservoirs, the methane is mainly sourced from the Upper Paleozoic coaly source rocks, the ethane in a small part of upper-assemblage and mid-assemblage natural gas is mostly derived from the Lower Paleozoic oil-associated gas, while the ethane and heavy hydrocarbon of most mid-assemblage natural gas are originated from the Upper Paleozoic coaly source rocks

Key words: carbon isotope of natural gas, coal-type gas, gas source correlation, Ordovician mid-assemblage, Ordos Basin

摘要：

随着鄂尔多斯盆地奥陶系天然气勘探工作的不断深入，中央古隆起东侧奥陶系马家沟组五段5亚段—马家沟组五段10亚段中组合天然气勘探取得了重要进展，但目前有关天然气成因与来源的研究还很薄弱。根据天然气地球化学特征、古油藏发育特征等分析结果，并结合天然气成藏地质背景，厘定了鄂尔多斯盆地中央古隆起东侧奥陶系中组合天然气的成因与来源。研究表明，鄂尔多斯盆地奥陶系中组合天然气为上古生界煤系烃源岩生成的煤型气与下古生界碳酸盐岩烃源岩生成的油型气的混合气，并以上古生界煤型气为主。现今气藏天然气组分中甲烷主要来自上古生界煤系烃源岩，上组合以及中组合少部分天然气的乙烷较多来自下古生界油型气，中组合大部分天然气乙烷及重烃仍来自上古生界煤系烃源岩。

关键词: 天然气碳同位素, 煤型气, 气源对比, 奥陶系中组合, 鄂尔多斯盆地

CLC Number:

TE122

Li Jun, Zhao Jingzhou, Wang Daxing, Sun Liuyi, Ren Junfeng, Wu Chunying, Wu Weitao, Zhao Zilong, Qu Futao. Genesis and source of the Ordovician mid-assemblage natural gas in the east side of the central paleo-uplift, Ordos Basin[J]. Acta Petrolei Sinica, 2016, 37(7): 821-831.

李军, 赵靖舟, 王大兴, 孙六一, 任军峰, 武春英, 吴伟涛, 赵子龙, 曲付涛. 鄂尔多斯盆地中央古隆起东侧奥陶系中组合天然气成因与来源[J]. 石油学报, 2016, 37(7): 821-831.

References

[1] 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.
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.
[2] 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.
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.
[3] 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.
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.
[4] 郭彦如,付金华,魏新善,等.鄂尔多斯盆地奥陶系碳酸盐岩成藏特征与模式[J].石油勘探与开发,2014,41(4):393-403.
Guo Yanru,Fu Jinhua,Wei Xinshan,et al.Natural gas accumulation and models in Ordovician carbonates,Ordos Basin,China[J].Petroleum Exploration and Development ,2014,41(4):393-403.
[5] 陈义才,杨知敏,王思航,等.鄂尔多斯盆地马家沟组烃源岩有效排烃有机质丰度下限探讨——以龙探1井为例[J].天然气地球科学,2014,25(11):1718-1726.
Chen Yicai,Yang Zhimin,Wang Sihang,et al.Discussion on the lower limit of organic abundance of effective hydrocarbon expulsion for the source rock from Majiagou Formation in Ordos Basin:taking the Well Longtan 1 as an example[J].Natural Gas Geoscience,2014,25(11):1718-1726.
[6] 胡素云,石书缘,王铜山,等.膏盐环境对碳酸盐岩层系成烃、成储和成藏的影响[J].中国石油勘探,2016,21(2):20-27.
Hu Suyun,Shi Shuyuan,Wang Tongshan,et al.Effect of gypsum-salt environment on hydrocarbon generation,reservoir-forming and hydrocarbon accumulation in the carbonate strata[J].China Petroleum Exploration,2016,21(2):21-27.
[7] 关德师,张文正,裴戈.鄂尔多斯盆地中部气田奥陶系产层的油气源[J].石油与天然气地质,1993,14(3):191-199.
Guan Deshi,Zhang Wenzheng,Pei Ge.Oil-gas sources of Ordovician reservoir in gas field of central Ordos Basin[J].Oil & Gas Geology,1993,14(3):191-199.
[8] 夏新宇,赵林,戴金星,等.鄂尔多斯盆地中部气田奥陶系风化壳气藏天然气来源及混源比计算[J].沉积学报,1998,16(3):75-79.
Xia Xinyu,Zhao Lin,Dai Jinxing,et al.Gas sources and mixing ratio of Ordovician weathering crust reservoir of central gas field in Ordos Basin[J].Acta Sedimentologica Sinica,1998,16(3):75-79.
[9] 夏新宇.油气源对比的原则暨再论长庆气田的气源——兼答《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(5):101-105.
Xia Xinyu.Rules of petroleum source correlation and their application in the Changqing gas field:a reply to "Feature of mixed gas in central gas field of Ordos Basin"[J].Petroleum Exploration and Development,2002,29(5):101-105.
[10] 戴金星,秦胜飞,陶士振,等.中国天然气工业发展趋势和天然气地学理论重要进展[J].天然气地球科学,2005,16(2):127-142.
Dai Jinxing,Qin Shengfei,Tao Shizhen,et al.Developing trends of natural gas industry and the significant progress on natural gas geological theories in China[J].Natural Gas Geoscience,2005,16(2):127-142.
[11] 戴金星,李剑,丁巍伟,等.中国储量千亿立方米以上气田天然气地球化学特征[J].石油勘探与开发,2005,32(4):16-23.
Dai Jinxing,Li Jian,Ding Weiwei,et al.Geochemical characters of the giant gas accumulations with over one hundred billion cubic meters reserves in China[J].Petroleum Exploration and Development,2005,32(4):16-23.
[12] 陈安定.陕甘宁盆地中部气田奥陶系天然气的成因及运移[J].石油学报,1994,15(2):1-10.
Chen Anding.Origin and migration of natural gas in Ordovician reservoir in Shan Gan Ning Basin central gas field[J].Acta Petrolei Sinica,1994,15(2):1-10.
[13] 黄第藩,熊传武,杨俊杰,等.鄂尔多斯盆地中部气田气源判识和天然气成因类型[J].天然气工业,1996,16(6):1-5.
Huang Difan,Xiong Chuanwu,Yang Junjie,et al.Gas source discrimination and natural gas genetic types of central gas field in E'erduosi Basin[J].Natural Gas Industry,1996,16(6):1-5.
[14] 徐永昌.天然气地球化学研究及有关问题探讨[J].天然气地球科学,1999,10(3/4):20-28.
Xu Yongchang.The discussion on problems of natural gas geochemistry[J].Natural Gas Geoscience,1999,10(3/4):20-28.
[15] 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.
Chen Anding.Feature of mixed gas in central gas field of Ordos Basin[J].Petroleum Exploration and Development,2002,29(2):33-38.
[16] 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.
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.
[17] Hao Fang,Guo Tonglou,Zhu Yangming,et al.Evidence for multiple stages of oil cracking and thermochemical sulfate reduction in the Puguang gas field,Sichuan Basin,China[J].AAPG Bulletin,2008,92(5):611-637.
[18] Lorant F,Prinzhofer A,Behar F,et al.Carbon isotopic and molecular constraints on the formation and the expulsion of thermogenic hydrocarbon gases[J].Chemical Geology,1998,147(3/4):249-264.
[19] Hill R J,Tang Yongchun,Kaplan I R.Insights into oil cracking based on laboratory experiments[J].Organic Geochemistry,2003,34(12):1651-1672.
[20] Bernard B B,Brooks J M,Sackett W M,et al.Light hydrocarbons in recent Texas continental shelf and slope sediments[J].Journal of Geophysical Research,1978,83(C8):4053-4061.
[21] Whiticar M J.Carbon and hydrogen isotope systematics of bacterial formation and oxidation of methane[J].Chemical Geology,1999,161(1/3):291-314.
[22] Gürgey K,Philp R P,Clayton C,et al.Geochemical and isotopic approach to maturity/source/mixing estimations for natural gas and associated condensates in the Thrace Basin,NW Turkey[J].Applied Geochemistry,2005,20(11):2017-2037.
[23] 王万春,张晓宝,刘若冰,等.川东北元坝与河坝地区陆相储层天然气成因[J].石油学报,2014,35(1):26-36.
Wang Wanchun,Zhang Xiaobao,Liu Ruobing,et al.Origin of natural gas in terrestrial reservoirs in Yuanba and Heba regions in northeastern Sichuan Basin,China[J].Acta Petrolei Sinica,2014,35(1):26-36.
[24] 李爱荣,李净红,张金功.建南气田天然气地球化学特征及成因[J].石油学报,2015,36(10):1199-1209.
Li Airong,Li Jinghong,Zhang Jingong.Geochemical characteristics and genesis of natural gas in Jiannan gas field,the western mid-Yangtze area[J].Acta Petrolei Sinica,2015,36(10):1199-1209.
[25] James A T.Correlation of natural gas by use of carbon isotopic distribution between hydrocarbon components[J].AAPG Bulletin,1983,67(7):1176-1191.
[26] Dai Jinxing,Xia Xinyu,Qin Shengfei,et al.Origins of partially reversed alkane δ¹³C values for biogenic gases in China[J].Organic Geochemistry,2004,35(4):405-411.
[27] Dai Jinxing,Yang Shufeng,Chen Hanlin,et al.Geochemistry and occurrence of inorganic gas accumulations in Chinese sedimentary basins[J].Organic Geochemistry,2005,36(12):1664-1688.
[28] Zumberge J E,Ferworn K A,Curtis J B.Gas character anomalies found in highly productive shale gas wells[J].Geochimica et Cosmochimica Acta,2009,73(13 Supplement):A1539.
[29] Burruss R C,Laughrey C D.Carbon and hydrogen isotopic reversals in deep basin gas:evidence for limits to the stability of hydrocarbons[J].Organic Geochemistry,2010,41(12):1285-1296.
[30] Tilley B,McLellan S,Hiebert S,et al.Gas isotope reversals in fractured gas reservoirs of the western Canadian Foothills:mature shale gases in disguise[J].AAPG Bulletin,2011,95(8):1399-1422.
[31] 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(1):43-52.
[32] Qin Shengfei.Carbon isotopic composition of water-soluble gases and its geological significance in the Sichuan Basin[J].Petroleum Exploration and Development,2012,39(3):335-342.
[33] 李伟,秦胜飞,胡国艺.四川盆地须家河组水溶气的长距离侧向运移与聚集特征[J].天然气工业,2012,32(2):32-37.
Li Wei,Qin Shengfei,Hu Guoyi.Long-distance lateral migration and accumulation of water-solved natural gas in the Xujiahe Formation,Sichuan Basin[J].Natural Gas Industry,2012,32(2):32-37.
[34] Hao Fang,Zou Huayao.Cause of shale gas geochemical anomalies and mechanisms for gas enrichment and depletion in high-maturity shales[J].Marine and Petroleum Geology,2013,44:1-12.
[35] 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.
[36] Prinzhofer A,Pernaton É.Isotopically light methane in natural gas:bacterial imprint or diffusive fractionation?[J].Chemical Geology,1997,142(3/4):193-200.
[37] Pernaton E,Prinzhofer A,Schneider F.Reconsideration of methane isotope signature as a criterion for the genesis of natural gas:influence of migration on isotopic signatures[J].Oil & Gas Science and Technology,1996,51(5):635-651.
[38] Prinzhofer A,Mello M R,Takaki T.Geochemical characterization of natural gas:a physical multivariable approach and its applications in maturity and migration estimates[J].AAPG Bulletin,2000,84(8):1152-1172.
[39] Schoell M.Multiple origins of methane in the earth[J].Chemical Geology,1988,71(1/3):1-10.
[40] Burruss R C,Laughrey C D.Reply to "Carbon and hydrogen isotopic reversals in deep basin gas:evidence for limits to the stability of hydrocarbons by Burruss and Laughrey:discussion" by Xiao Qilin[J].Organic Geochemistry,2012,44:77-78.
[41] Dai Jinxing,Ni Yunyan,Hu Guoyi,et al.Stable carbon and hydrogen isotopes of gases from the large tight gas fields in China[J].Science China Earth Sciences,2014,57(1):88-103.
[42] 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,2000:158.
Xia Xinyu.Carbonate hydrocarbonate rocks and Changqing gas field[M].Beijing:Petroleum Industry Press,2000:158.
[43] Zou Yanrong,Cai Yulan,Zhang Chongchun,et al.Variations of natural gas carbon isotope-type curves and their interpretation:a case study[J].Organic Geochemistry,2007,38(8):1398-1415.
[44] 赵文智,王兆云,王东良,等.分散液态烃的成藏地位与意义[J].石油勘探与开发,2015,42(4):401-413.
Zhao Wenzhi,Wang Zhaoyun,Wang Dongliang,et al.Contribution and significance of dispersed liquid hydrocarbons to reservoir formation[J].Petroleum Exploration and Development,2015,42(4):401-413.

Genesis and source of the Ordovician mid-assemblage natural gas in the east side of the central paleo-uplift, Ordos Basin

鄂尔多斯盆地中央古隆起东侧奥陶系中组合天然气成因与来源

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