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Coal Geology & Exploration

Abstract

Objective Significant breakthroughs have been achieved in the exploration of bauxite gas reservoirs in the Taiyuan Formation, Longdong area, Ordos Basin. Bauxites are generally considered to hold great helium generation potential due to their relatively high uranium (U) and thorium (Th) contents. However, there remains a lack of quantitative studies on their actual contribution to helium abundance in natural gas in the area. Methods To determine dominant helium source rocks and mechanisms behind helium enrichment, this study investigated the bauxite gas reservoirs within the Taiyuan Formation in the Longdong area. Through analyses of the composition, carbon isotopes, and noble gas isotopes of helium-bearing natural gas, the origins of natural gas and helium in the reservoirs were identified. Based on the conventional genetic approach, this study developed a quantitative method for calculating the contribution of sedimentary effective helium source rocks to relative helium abundance in bauxite gas reservoirs. Accordingly, the contributions of bauxite reservoirs and hydrocarbon source rocks to helium abundance were assessed, and the mechanisms underlying helium enrichment in the reservoirs were explored.Results In the Longdong area, natural gas in bauxite gas reservoirs exhibits helium volume fractions ranging from 0.06% to 0.25% (average: 0.12%) and 3He/4He ratios varying from 2.27×10–8 to 3.86×10–8, indicating a typical crustal origin of helium. Theoretical calculations indicate that bauxite reservoirs and the Upper Paleozoic coal-measure hydrocarbon source rocks contribute relative helium abundance (280‒801) × 10–6 and 75×10–6, respectively to natural gas. In the case where sedimentary effective helium source rocks serve as the only helium source, the maximum helium content in natural gas was calculated at 876×10–6, which is lower than the threshold for helium-rich natural gas (He content > 0.1%). Therefore, bauxite reservoirs and coal-measure hydrocarbon source rocks possess a limited helium supply capacity, failing to form helium-rich natural gas independently. In contrast, basement granites exhibit huge volumes and can release large amounts of helium under geological conditions such as tectonic uplift, thereby serving as major helium source rocks in the Longdong area.Conclusions In the Longdong area, helium enrichment in bauxite gas reservoirs is collectively controlled by multiple factors, including tectonic activity, fault development, and the natural gas accumulation process. The helium enrichment pattern of the reservoirs is characterized by a multi-source helium supply predominated by basement granites and supplemented by sedimentary effective helium source rocks.

Keywords

helium, effective helium source rock, bauxite, Ordos Basin, Longdong area

DOI

10.12363/issn.1001-1986.26.02.0112

Reference

[1] ANDERSON S T. Economics,helium,and the U. S. federal helium reserve:Summary and outlook[J]. Natural Resources Research,2018,27(4):455−477.

[2] 陈践发,刘凯旋,董勍伟,等. 天然气中氦资源研究现状及我国氦资源前景[J]. 天然气地球科学,2021,32(10):1436−1449 CHEN Jianfa,LIU Kaixuan,DONG Qingwei,et al. Research status of helium resources in natural gas and prospects of helium resources in China[J]. Natural Gas Geoscience,2021,32(10):1436−1449

[3] 苑九涛,张文锦,宋泽章,等. 超深层海相页岩型氦源岩特征与生氦潜力[J]. 煤田地质与勘探,2026,54(3):56−68 YUAN Jiutao,ZHANG Wenjin,SONG Zezhang,et al. Characteristics and helium generation potential of ultra–deep marine shales as helium source rocks[J]. Coal Geology & Exploration,2026,54(3):56−68

[4] 李玉宏,李济远,周俊林,等. 氦气资源评价相关问题认识与进展[J]. 地球科学与环境学报,2022,44(3):363−373 LI Yuhong,LI Jiyuan,ZHOU Junlin,et al. Research progress and new views on evaluation of helium resources[J]. Journal of Earth Sciences and Environment,2022,44(3):363−373

[5] NUTTALL W J，CLARKE R H，GLOWACKI B A. The future of helium as a natural resource[M]. London：Routledge，2012.

[6] YAKUTSENI V P. World helium resources and the perspectives of helium industry development[J]. Neftegasovaâ Geologiâ Teoriâ I Practika,2014,9(1):1−22.

[7] SIVTSEV A I,ALEKSANDROV A R,PETROV D M. Means to solve the problems of the development of helium resources in eastern Siberia[J]. IOP Conference Series:Earth and Environmental Science,2020,459(4):042097.

[8] 张宇轩,吕鹏瑞,牛亚卓,等. 全球氦气资源成藏背景、地质特征与产能格局初探[J]. 西北地质,2022,55(4):11−32 ZHANG Yuxuan,LYU Pengrui,NIU Yazhuo,et al. Preliminary study on the geological characteristics,resource potential and production capacity pattern of global helium resources[J]. Northwestern Geology,2022,55(4):11−32

[9] 李玉宏,张文,王利,等. 亨利定律与壳源氦气弱源成藏:以渭河盆地为例[J]. 天然气地球科学,2017,28(4):495−501 LI Yuhong,ZHANG Wen,WANG Li,et al. Henry’s law and accumulation of crust–derived helium:A case from Weihe Basin,China[J]. Natural Gas Geoscience,2017,28(4):495−501

[10] 秦胜飞,李济远,梁传国,等. 中国中西部富氦气藏氦气富集机理:古老地层水脱氦富集[J]. 天然气地球科学,2022,33(8):1203−1217 QIN Shengfei,LI Jiyuan,LIANG Chuanguo,et al. Helium enrichment mechanism of helium rich gas reservoirs in central and western China:Degassing and accumulation from old formation water[J]. Natural Gas Geoscience,2022,33(8):1203−1217

[11] 王晓锋,赵栋,张东东,等. 有效氦源岩类型及氦气释放机理[J]. 天然气地球科学,2025,36(3):381−389 WANG Xiaofeng,ZHAO Dong,ZHANG Dongdong,et al. Characteristics of effective helium source rocks and releasing mechanism of helium[J]. Natural Gas Geoscience,2025,36(3):381−389

[12] 余琪祥,史政,王登高,等. 塔里木盆地西北部氦气富集特征与成藏条件分析[J]. 西北地质,2013,46(4):215−222 YU Qixiang,SHI Zheng,WANG Denggao,et al. Analysis on helium enrichment characteristics and reservoir forming conditions in northwest Tarim Basin[J]. Northwestern Geology,2013,46(4):215−222

[13] 彭威龙,刘全有,张英,等. 中国首个特大致密砂岩型(烃类)富氦气田:鄂尔多斯盆地东胜气田特征[J]. 中国科学:地球科学,2022,52(6):1078−1085 PENG Weilong,LIU Quanyou,ZHANG Ying,et al. The first extra–large helium–rich gas field identified in a tight sandstone of the Dongsheng gas field,Ordos Basin,China[J]. Science China:Earth Sciences,2022,52(6):1078−1085

[14] LIU Quanyou,WU Xiaoqi,JIA Huichong,et al. Geochemical characteristics of helium in natural gas from the Daniudi gas field,Ordos Basin,Central China[J]. Frontiers in Earth Science,2022,10:823308.

[15] BALLENTINE C J，BURNARD P G. Production，release and transport of noble gases in the continental crust[M]//PORCELLI D，BALLENTINE C J，WIELER R. Noble gases in geochemistry and cosmochemistry. Chantilly：Mineralogical Soc Amer & Geochemical Soc，2002：481–538.

[16] 刘成林,丁振刚,陈践发,等. 鄂尔多斯盆地氦源岩特征及生氦潜力[J]. 石油与天然气地质,2023,44(6):1546−1554 LIU Chenglin,DING Zhengang,CHEN Jianfa,et al. Characteristics and helium–generating potential of helium source rocks in the Ordos Basin[J]. Oil & Gas Geology,2023,44(6):1546−1554

[17] 惠洁,康锐,赵伟波,等. 鄂尔多斯盆地氦气特征及生成潜力[J]. 天然气地球科学,2024,35(9):1688−1698 HUI Jie,KANG Rui,ZHAO Weibo,et al. Helium characteristics and potential in the Ordos Basin[J]. Natural Gas Geoscience,2024,35(9):1688−1698

[18] 康锐,范立勇,惠洁,等. 鄂尔多斯盆地庆阳气田潜在氦源岩有效性评价[J]. 天然气地球科学,2025,36(3):413−429 KANG Rui,FAN Liyong,HUI Jie,et al. Effectiveness evaluation of potential helium source rocks in Qingyang gas field,Ordos Basin[J]. Natural Gas Geoscience,2025,36(3):413−429

[19] 杨华,席胜利,魏新善,等. 鄂尔多斯多旋回叠合盆地演化与天然气富集[J]. 中国石油勘探,2006,11(1):17−24 YANG Hua,XI Shengli,WEI Xinshan,et al. Evolution and natural gas enrichment of multicycle superimposed basin in Ordos Basin[J]. China Petroleum Exploration,2006,11(1):17−24

[20] 何发岐,王付斌,王杰,等. 鄂尔多斯盆地东胜气田氦气分布规律及特大型富氦气田的发现[J]. 石油实验地质,2022,44(1):1−10 HE Faqi,WANG Fubin,WANG Jie,et al. Helium distribution of Dongsheng gas field in Ordos Basin and discovery of a super large helium–rich gas field[J]. Petroleum Geology & Experiment,2022,44(1):1−10

[21] 范立勇,赵伟波,康锐,等. 黄龙天然气田富氦地质条件与成藏模式[J]. 中国科技论文,2024,19(9):951−961 FAN Liyong,ZHAO Weibo,KANG Rui,et al. Helium geological conditions and accumulation model of the Huanglong natural gas field,Ordos Basin[J]. China Sciencepaper,2024,19(9):951−961

[22] 王海东,刘成林,范立勇,等. 古隆起背景下多源供氦氦气富集模式:以鄂尔多斯盆地庆阳气田为例[J]. 天然气地球科学,2025,36(3):430−443 WANG Haidong,LIU Chenglin,FAN Liyong,et al. Helium enrichment patterns of multi–source helium supply in the context of paleo–upliftment:A case study of the Qingyang gas field in the Ordos Basin[J]. Natural Gas Geoscience,2025,36(3):430−443

[23] 李勇,王壮森,邵龙义,等. 鄂尔多斯盆地东部上石炭统铝土岩系储集层特征及形成模式[J]. 石油勘探与开发,2024,51(1):39−47 LI Yong,WANG Zhuangsen,SHAO Longyi,et al. Reservoir characteristics and formation model of Upper Carboniferous bauxite series in eastern Ordos Basin,NW China[J]. Petroleum Exploration and Development,2024,51(1):39−47

[24] 孟卫工,李晓光,吴炳伟,等. 鄂尔多斯盆地宁古3井太原组含铝岩系天然气成藏特征及地质意义[J]. 中国石油勘探,2021,26(3):79−87 MENG Weigong,LI Xiaoguang,WU Bingwei,et al. Research on gas accumulation characteristics of aluminiferous rock series of Taiyuan Formation in Well Ninggu 3 and its geological significance,Ordos Basin[J]. China Petroleum Exploration,2021,26(3):79−87

[25] 付金华,李明瑞,张雷,等. 鄂尔多斯盆地陇东地区铝土岩天然气勘探突破与油气地质意义探索[J]. 天然气工业,2021,41(11):1−11 FU Jinhua,LI Mingrui,ZHANG Lei,et al. Breakthrough in the exploration of bauxite gas reservoir in Longdong area of the Ordos Basin and its petroleum geological implications[J]. Natural Gas Industry,2021,41(11):1−11

[26] 肖文同,和丽安,王雷,等. 陇东太原组铝土岩分布特征及成藏主控因素[J]. 岩石矿物学杂志,2024,43(4):889−904 XIAO Wentong,HE Li’an,WANG Lei,et al. Distribution characteristics and main controlling factors of accumulation of bauxite rock in Taiyuan Formation in Longdong area[J]. Acta Petrologica et Mineralogica,2024,43(4):889−904

[27] 李济远,李玉宏,胡少华,等. “山西式”氦气成藏模式及其意义[J]. 西安科技大学学报,2022,42(3):529−536 LI Jiyuan,LI Yuhong,HU Shaohua,et al. “Shanxi–type” helium accumulation model and its essentiality[J]. Journal of Xi’an University of Science and Technology,2022,42(3):529−536

[28] 姚泾利,石小虎,杨伟伟,等. 鄂尔多斯盆地陇东地区二叠系太原组铝土岩系储层特征及勘探意义[J]. 沉积学报,2023,41(5):1583−1597 YAO Jingli,SHI Xiaohu,YANG Weiwei,et al. Reservoir characteristics and exploration significance of the bauxite rock series of Permian Taiyuan Formation in the Longdong area of the Ordos Basin[J]. Acta Sedimentologica Sinica,2023,41(5):1583−1597

[29] 张雷,曹茜,张才利,等. 鄂尔多斯盆地含铝岩系天然气成藏主控因素与勘探启示[J]. 石油勘探与开发,2024,51(3):541−552 ZHANG Lei,CAO Qian,ZHANG Caili,et al. Main controlling factors and exploration enlightenment of aluminous rock series gas reservoirs in Ordos Basin,NW China[J]. Petroleum Exploration and Development,2024,51(3):541−552

[30] 刘显阳,魏柳斌,刘宝宪,等. 鄂尔多斯盆地西南部寒武系风化壳天然气成藏特征[J]. 天然气工业,2021,41(4):13−21 LIU Xianyang,WEI Liubin,LIU Baoxian,et al. Characteristics of natural gas accumulation in the Cambrian weathering crust in the southwestern Ordos Basin[J]. Natural Gas Industry,2021,41(4):13−21

[31] 何登发,包洪平,孙方源,等. 鄂尔多斯盆地中央古隆起的地质结构与成因机制[J]. 地质科学,2020,55(3):627−656 HE Dengfa,BAO Hongping,SUN Fangyuan,et al. Geologic structure and genetic mechanism for the central uplift in the Ordos Basin[J]. Chinese Journal of Geology,2020,55(3):627−656

[32] 唐敏,康锐,郝乐伟,等. 铝土岩气藏富氦机制及与常规富氦气藏的形成差异:以鄂尔多斯盆地庆阳气田为例[J]. 天然气地球科学,2025,36(11):2054−2065 TANG Min,KANG Rui,HAO Lewei,et al. Helium enrichment mechanism in bauxite gas reservoirs and differences from conventional helium–rich reservoirs:A case study of Qingyang gas field,Ordos Basin[J]. Natural Gas Geoscience,2025,36(11):2054−2065

[33] 黄军平,张雷,张艳,等. 鄂尔多斯盆地陇东地区寒武系天然气地球化学特征与来源[J]. 天然气地球科学,2026,37(2):349−362 HUANG Junping,ZHANG Lei,ZHANG Yan,et al. Geochemical characteristics and source of Cambrian natural gas in Longdong area,Ordos Basin[J]. Natural Gas Geoscience,2026,37(2):349−362

[34] 戴金星. 中国煤成大气田及气源[M]. 北京：科学出版社，2014.

[35] 吴小奇,倪春华,陈迎宾,等. 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 WU Xiaoqi,NI Chunhua,CHEN Yingbin,et al. Source of the Upper Paleozoic natural gas in Dingbei area in the Ordos Basin[J]. Natural Gas Geoscience,2019,30(6):819−827

[36] DAI Jinxing,NI Yunyan,QIN Shengfei,et al. Geochemical characteristics of He and CO2 from the Ordos (cratonic) and Bohaibay (rift) Basins in China[J]. Chemical Geology,2017,469:192−213.

[37] 张涛,王晓锋,金晓辉,等. 鄂尔多斯盆地南部古生界天然气地球化学特征与成因[J]. 天然气地球科学,2024,35(9):1616−1625 ZHANG Tao,WANG Xiaofeng,JIN Xiaohui,et al. Geochemical characteristics and genesis of Paleozoic natural gas in the southern Ordos Basin[J]. Natural Gas Geoscience,2024,35(9):1616−1625

[38] 张珈毓,王晓锋,吴疆,等. 鄂尔多斯盆地南部上古生界烃源岩生排烃特征及天然气勘探潜力[J]. 天然气地球科学,2022,33(9):1433−1445 ZHANG Jiayu,WANG Xiaofeng,WU Jiang,et al. Hydrocarbon generation and expulsion characteristics and natural gas exploration potential of the Upper Paleozoic in southern Ordos Basin[J]. Natural Gas Geoscience,2022,33(9):1433−1445

[39] 李剑,张春林,姜福杰,等. 鄂尔多斯盆地上石炭统本溪组致密气富集主控因素[J]. 天然气工业,2021,41(4):30−40 LI Jian,ZHANG Chunlin,JIANG Fujie,et al. Main factors controlling the enrichment of Upper Carboniferous Benxi Formation tight gas in the Ordos Basin[J]. Natural Gas Industry,2021,41(4):30−40

[40] 赵文智,胡素云,汪泽成,等. 鄂尔多斯盆地基底断裂在上三叠统延长组石油聚集中的控制作用[J]. 石油勘探与开发,2003,30(5):1−5 ZHAO Wenzhi,HU Suyun,WANG Zecheng,et al. Key role of basement fault control on oil accumulation of Yanchang Formation,Upper Triassic,Ordos Basin[J]. Petroleum Exploration and Development,2003,30(5):1−5

[41] 魏柳斌,赵俊兴,苏中堂,等. 鄂尔多斯盆地奥陶系中组合微生物碳酸盐岩分布规律及沉积模式[J]. 石油勘探与开发,2021,48(6):1162−1174 WEI Liubin,ZHAO Junxing,SU Zhongtang,et al. Distribution and depositional model of microbial carbonates in the Ordovician middle assemblage,Ordos Basin,NW China[J]. Petroleum Exploration and Development,2021,48(6):1162−1174

[42] MAMYRIN B A，TOLSTIKHIN I N. Helium isotopes in nature[M]. Amsterdam：Elsevier，1984.

[43] 徐永昌,孙明良,沈平,等. 天然气氦同位素的测定及其在天然气研究中的应用[J]. 石油实验地质,1990,12(3):316−325 XU Yongchang,SUN Mingliang,SHEN Ping,et al. Isotopic measurements of nitrogen and their application in natural gas[J]. Petroleum Geology & Experiment,1990,12(3):316−325

[44] DANABALAN D,GLUYAS J G,MACPHERSON C G,et al. The principles of helium exploration[J]. Petroleum Geoscience,2022,28(2):petgeo2021−petgeo2029.

[45] BROWN A A. PSFormation of high helium gases：A guide for explorationists[C]//2010 AAPG Conference. New Orleans：AAPG，2010：11–14.

[46] 赵栋,王晓锋,刘文汇,等. 孔隙水中氦气溶解与脱溶量估算方法及其地质意义[J]. 天然气工业,2023,43(2):155−164 ZHAO Dong,WANG Xiaofeng,LIU Wenhui,et al. Calculation method and geological significance of dissolved and exsolved helium in pore water[J]. Natural Gas Industry,2023,43(2):155−164

[47] 王大钊,冷成彪,秦朝建,等. 铀的地球化学性质与成矿作用[J]. 大地构造与成矿学,2022,46(2):282−302 WANG Dazhao,LENG Chengbiao,QIN Chaojian,et al. Geochemical characteristics and mineralization of uranium[J]. Geotectonica et Metallogenia,2022,46(2):282−302

[48] KEPPLER H,WYLLIE P J. Role of fluids in transport and fractionation of uranium and thorium in magmatic processes[J]. Nature,1990,348(6301):531−533.

[49] 赵栋,王晓锋,刘文汇,等. 壳源富氦天然气藏潜在氦源岩主要特征及有效性分析[J]. 天然气地球科学,2024,35(3):507−517 ZHAO Dong,WANG Xiaofeng,LIU Wenhui,et al. Main characteristics and effectiveness analysis of potential helium source rock in crustal source helium–rich gas reservoirs[J]. Natural Gas Geoscience,2024,35(3):507−517

[50] 李明瑞,张雷,张三,等. 鄂尔多斯盆地铝土岩天然气新领域勘探发现与理论技术进展[J]. 天然气地球科学,2024,35(8):1339−1350 LI Mingrui,ZHANG Lei,ZHANG San,et al. Exploration achievements and technological progress in new fields of bauxite natural gas in Ordos Basin[J]. Natural Gas Geoscience,2024,35(8):1339−1350

[51] 刘蝶,张海涛,杨小明,等. 鄂尔多斯盆地铝土岩储集层测井评价[J]. 新疆石油地质,2022,43(3):261−270 LIU Die,ZHANG Haitao,YANG Xiaoming,et al. Well logging evaluation of bauxite reservoirs in Ordos Basin[J]. Xinjiang Petroleum Geology,2022,43(3):261−270

[52] 张成. 鄂尔多斯盆地陇东地区山西组山1段沉积演化及砂体发育特征[D]. 成都：成都理工大学，2021. ZHANG Cheng. Sedimentary evolution and sand body development characteristics of Member 1，Shanxi Formation，Longdong area，Ordos Basin[D]. Chengdu：Chengdu University of Technology，2021.

[53] 王慧玲,姚泾利,石小虎,等. 鄂尔多斯盆地陇东地区太原组铝土岩系地球化学特征及其地质意义[J]. 天然气地球科学,2024,35(8):1502−1517 WANG Huiling,YAO Jingli,SHI Xiaohu,et al. Geochemical characteristics and geological significance of the Taiyuan Formation bauxite series in the Longdong area of the Ordos Basin[J]. Natural Gas Geoscience,2024,35(8):1502−1517

[54] 李盛富,王果,孙鹏飞. 新疆巴里坤县条湖矿区主煤层(M4)煤质特征及工业用途评价[J]. 中国煤炭地质,2012,24(3):12−16 LI Shengfu,WANG Guo,SUN Pengfei. Assessment of main coal seam M4 coal quality characteristics and industrial usage in Tiaohu mine area,Barkol County,Xinjiang[J]. Coal Geology of China,2012,24(3):12−16

[55] 范立勇,单长安,李进步,等. 基于磁力资料的鄂尔多斯盆地氦气分布规律[J]. 天然气地球科学,2023,34(10):1780−1789 FAN Liyong,SHAN Chang’an,LI Jinbu,et al. Distribution of helium resources in Ordos Basin based on magnetic data[J]. Natural Gas Geoscience,2023,34(10):1780−1789

[56] 张文. 关中和柴北缘地区战略性氦气资源成藏机理研究[D]. 北京：中国矿业大学(北京)，2019. ZHANG Wen. Accumulation mechanism of helium，a strategic resource，in Guanzhong and north Qaidam Basin[D]. Beijing：China University of Mining & Technology (Beijing)，2019.

[57] 李玉宏,张文,周俊林,等. 花岗岩在氦气成藏中的双重作用:氦源与储集[J]. 西北地质,2022,55(4):95−102 LI Yuhong,ZHANG Wen,ZHOU Junlin,et al. Dual contribution of granites in helium accumulation:Source and reservoir[J]. Northwestern Geology,2022,55(4):95−102

[58] 沈忠民,潘中亮,吕正祥,等. 川西坳陷中段须家河组天然气地球化学特征与气源追踪[J]. 成都理工大学学报(自然科学版),2009,36(3):225−230 SHEN Zhongmin,PAN Zhongliang,LYU Zhengxiang,et al. The geochemical characteristics of natural gas and the gas–sources tracing of Xujiahe Formation in the middle member of west Sichuan depression[J]. Journal of Chengdu University of Technology (Science & Technology Edition),2009,36(3):225−230

[59] 高建荣,陶士振,刘祥柏,等. 鄂尔多斯盆地典型区带氦气富集主控因素与有利区预测[J]. 煤田地质与勘探,2025,53(9):1−14 GAO Jianrong,TAO Shizhen,LIU Xiangbai,et al. Enrichment factors and play fairway mapping of helium in typical zones of the Ordos Basin[J]. Coal Geology & Exploration,2025,53(9):1−14

[60] 李涵,付金华,季汉成,等. 鄂尔多斯盆地西南部上古生界风化壳型铝土岩系发育过程及优势储层分布规律[J]. 石油与天然气地质,2023,44(5):1243−1255 LI Han,FU Jinhua,JI Hancheng,et al. Bauxite series in the Upper Paleozoic weathering crusts in the southwestern Ordos Basin:Development and distribution of dominant reservoirs[J]. Oil & Gas Geology,2023,44(5):1243−1255

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