Possible origins for inverse stable carbon isotopes of gaseous alkanes from the Xujiaweizi fault depression

doi:10.7623/syxb201101008

Editorial office of ACTA PETROLEI SINICA ›› 2011, Vol. 32 ›› Issue (1): 54-61.DOI: 10.7623/syxb201101008

• Petroleum Exploration • Previous Articles Next Articles

Possible origins for inverse stable carbon isotopes of gaseous alkanes from the Xujiaweizi fault depression

LI Jingkun 1 FANG Wei 1 ZENG Huasen 1 LIU Wei 1 ZOU Yanrong 2 LIU Jinzhong 2

Received:2010-06-04 Revised:2010-10-27 Online:2011-01-25 Published:2011-03-23

徐家围子断陷烷烃气碳同位素反序机制

李景坤 1 方伟 1 曾花森 1 刘伟 1 邹艳荣 2 刘金钟 2

1 中国石油大庆油田有限责任公司勘探开发研究院黑龙江大庆 163712； 2 中国科学院广州地球化学研究所广东广州 510640

通讯作者: 李景坤
作者简介:李景坤，男，1961年8月生，1989年获大庆石油学院硕士学位，现为中国石油大庆油田勘探开发研究院高级工程师，主要从事油气地球化学和资源评价方面的研究工作。
基金资助:
国家重点基础研究发展规划（973）项目（2009CB219308）资助。

Abstract

Abstract:

Gaseous alkanes from the Xujiaweizi fault depression in the Songliao Basin are characterized by heavier stable carbon isotopes, mostly showing a inverse order or a reverse order. It is still in debate whether these gases are biogenic or abiogenic. To determine the potential origin of these natural gases, a series of experiments concerning the generation and synthesis of gaseous alkanes have been conducted. Mantle-derived carbon dioxide sampled from the Xujiaweizi fault depression was used to synthesize hydrocarbon gas through the Fishcher-Tropsch reaction, and the produced gaseous alkanes yielded a normal stable carbon isotope trend. Meanwhile, some source rocks with low maturity were sampled from the Shahezi Formation to conduct pyrolysis experiments, the produced gases were then determined for chemical components and stable carbon isotopes. Based on the possible end-member gases in the Xujiaweizi fault depression and geological conditions, the produced gases generated by shales and coals at different heating rate were mixed to determine the trend of stable carbon isotopes. The results showed that the mixed biogenic end-member gases could also lead to an inverse stable carbon isotopic order, whereas the mixed abiogenic gases are not necessarily reversal. Integrated with the results of pyrolysis experiments discussed in this paper, comprehensive analyses both on gases released from modern volcanic springs and on source-rock characteristics of the Xujiaweizi fault depression have suggested that natural gases from the Xujiaweizi fault depression are mainly biogenic.

Key words: Xujiaweizi fault depression, gas genesis, carbon isotope, inverse order, Fishcher-Tropsch synthesis, experimental simulation of gas generation, mixture

摘要：

松辽盆地徐家围子断陷深层天然气甲烷碳同位素重，且烷烃碳同位素序列大部分为倒转和反序。关于这些碳同位素反序的天然气是有机成因还是无机成因，一直存在争议。为此，进行了一系列烃类生成和合成实验。利用徐家围子断陷幔源二氧化碳进行了费-托合成实验，其烃产物大部分未发生碳同位素反序。选取松辽盆地深层沙河子组低成熟烃源岩，开展了生气模拟实验，并在对模拟产物进行化学组成和碳同位素测定的基础上,根据模拟实验温度条件与地质条件的差异，客观地选定了化学组成和碳同位素特征均与徐家围子断陷深层天然气一致的端元气，进行泥岩和煤生成的烃气产物在理论上的混合。混合结果表明，两种有机成因的端元气，在一定的混合比例区间内，会发生碳同位素倒转和反序。因此，无机合成的烃气碳同位素并不一定反序，而有机成因天然气混合也可能出现碳同位素反序现象。对生气模拟实验结果、现代火山泉水逸出气以及研究区源岩生烃条件综合分析表明，徐家围子断陷深层天然气以有机成因气为主。

关键词: 徐家围子断陷, 天然气成因, 碳同位素, 反序, 费-托合成实验, 生气模拟实验, 混合

LI Jingkun FANG Wei ZENG Huasen LIU Wei ZOU Yanrong LIU Jinzhong. Possible origins for inverse stable carbon isotopes of gaseous alkanes from the Xujiaweizi fault depression[J]. Editorial office of ACTA PETROLEI SINICA, 2011, 32(1): 54-61.

李景坤方伟曾花森刘伟邹艳荣刘金钟. 徐家围子断陷烷烃气碳同位素反序机制[J]. 石油学报, 2011, 32(1): 54-61.

References

[1]李景坤，刘伟，宋兰斌.徐家围子断陷深层烃源岩生烃条件研究[J].天然气工业，2006，26（6）：21-24.

Li Jingkun,Liu Wei,Song Lanbin.A study of hydrocarbon generation conditions of deep source rocks in Xujiaweizi fault depression of the Songliao Basin[J].Natural Gas Industry,2006,26(6): 21-24.

[2]冯志强.松辽盆地庆深大型气田的勘探前景[J].天然气工业，2006，26（6）：1-5.

Feng Zhiqiang.Exploration potential of Qingshen Gas Field in the Songliao Basin[J].Natural Gas Industry,2006，26(6):1-5.

[3]郭占谦,刘文龙，王先彬.松辽盆地非生物成因气的成藏特征[J].中国科学：D辑，1997，27（2）:143-148.

Guo Zhanqian，Liu Wenlong,Wang Xianbin.Reservoir-forming features of abiogenic gas in the Songliao Basin[J].Science in China:Series D,1997,27(2):143-148.

[4]王先彬，妥进才，周世新，等.论天然气形成机制与相关地球科学问题[J].天然气地球科学，2006，17（1）：7-13.

Wang Xianbin,Tuo Jincai,Zhou Shixin,et al.The formation mechanism of natural gas and relative to problems in earth science

[J].Natural Gas Geoscience,2006,17(1):7-13.

[5]杨春，罗霞，李剑，等.松辽盆地北部基底浅变质岩热模拟实验及其气态产物地球化学特征[J].中国科学:D辑，2007，37（增刊Ⅱ）：118-124.

Yang Chun,Luo Xia,Li Jian,et al.Geochemical characteristics of pyrolysis gas from epimetamorphic rocks in the northern basement of Songliao Basin,Northeast China[J].Science in China:Series D,2007,37(Supplement Ⅱ):118-124.

[6]杨玉峰，张秋，黄海平，等.松辽盆地徐家围子断陷无机成因天然气及其成藏模式[J].地学前缘，2000，7（4）：523-533.

Yang Yufeng,Zhang Qiu,Huang Haiping,et al.Abiogenic natural gases and their accumulation model in Xujiaweizi area,Songliao Basin,Northeast China[J].Earth Science Frontiers,2000, 7(4): 523-533.

[7]王连生，郭占谦，马志红，等.无机成因天然气的地球化学特征[J].吉林大学学报:地球科学版，2004，34（4）：542-545.

Wang Liansheng,Guo Zhanqian,Ma Zhihong,et al.Geochemistry characters of inorganic natural gas[J].Journal of Jilin University:Earth Science Edition,2004,34(4):542-545.

[8]郭占谦，刘俊峰，李贵顺.对大庆油田深层气田气源的讨论[J].石油与天然气地质，2007，28（4）：441-448.

Guo Zhanqian,Liu Junfeng,Li Guishun.A discussion on gas sources in deep gas fields,Daqing Oil Field[J].Oil & Gas Geology,2007,28(4):441-448.

[9]张永忠，何顺利，甯波，等.大庆兴城地区天然气地球化学特征及成因[J].地质与资源，2007，16（4）：288-292.

Zhang Yongzhong,He Shunli,Ning Bo,et al.Geochemistry and origin of natural gases in Xingcheng area of Daqing,Heilongjiang Province[J].Geology and Resources,2007,16(4):288-292.

[10] 戴金星，邹才能，张水昌，等.无机成因和有机成因烷烃气的鉴别[J].中国科学:D辑,2008,38(11):1329-1341.

Dai Jinxing,Zou Caineng,Zhang Shuichang,et al.Discrimination of abiogenic and biogenic alkane gases[J].Science in China:Series D,2008,38(11):1329-1341.

[11]王先彬，郭占谦，妥进才，等.中国松辽盆地商业天然气的非生物成因烷烃气体[J].中国科学:D辑，2009，39（5）:602-614.

Wang Xianbin,Guo Zhanqian,Tuo Jincai,et al.Abiogenic alkane gases in commercial gases from the Songliao Basin,China

[J].Science in China:Series D,2009,39(5):602-614.

[12]Zhang Shuichang,Zhu Guangyou.Natural gas origins of large and medium-scale gas fields in China sedimentary basins

[J].Science in China:Series D,2008,51(Supplement Ⅰ):1-13.

[13]Qi Fu,Lollar B S,Horita J,et al.Abiotic formation of hydrocarbons under hydrothermal conditions:Constraints from chemical and isotope data[J].Geochimica et Cosmochimica Acta,2007,71(8): 1982-1998.

[14]Taran Y A,Kliger G A,Sevastianov V S.Carbon isotope effects in the open-system Fischer-Tropsch synthesis

[J].Geochimica et Cosmochimica Acta,2007,71(18):4474-4487.

[15]Lollar B S,Westgate T D,Ward J A,et al.Abiogenic formation of alkanes in the Earth’s crust as a minor source for global hydrocarbon reservoirs[J].Nature,2002,416(6880):522-524.

[16]Mccollom T M,Seewald J S.Abiotic synthesis of organic compounds in deep-sea hydrothermal environments[J].Chemical Reviews,2007, 107（2）：382-401.

[17]戴金星.中国天然气地质学:卷一[M].北京：石油工业出版社，1992.

Dai Jinxing.The geology of natural gas in China:Vol. I [M].Beijing:Petroleum Industry Press,1992.

[18]戴金星，夏新宇，秦胜飞，等.中国有机烷烃气碳同位素系列倒转的成因[J].石油与天然气地质，2003，24（1）：1-6.

Dai Jinxing,Xia Xinyu,Qin Shengfei,et al.Causation of partly reversed orders of δ¹³C in biogenic alkane gas in China[J].Oil & Gas Geology,2003,24(1):1-6.

[19]Jenden P D,Drazan D J,Kaplan I R.Mixing of thermogenic natural gases in northern Appalachian Basin[J].AAPG Bulletin,1993,77(6):980-998.

[20]朱光有，张水昌，梁英波，等.四川盆地天然气特征及气源[J].地学前缘,2006,13(2):234-248.

Zhu Guangyou,Zhang Shuichang,Liang Yingbo,et al.The characteristics of natural gas in Sichuan Basin and its sources

[J].Earth Science Frontiers,2006,13(2):234-248.

[21]Zhu Guangyou,Zhao Wenzhi,Zhang Shuichang,et al.Discussion of gas enrichment mechanism and natural gas origin in marine sedimentary basin,China[J].Chinese Science Bulletin,2007,52(Supplement Ⅰ):62-76.

[22]朱光有，张水昌，梁英波，等.硫酸盐热化学还原反应对烃类的蚀变作用[J].石油学报，2005，26(5)：48-52.

Zhu Guangyou,Zhang Shuichang,Liang Yingbo,et al.Alteration of thermochemical sulfate reduction to hydrocarbons

[J].Acta Petrolei Sinica,2005,26(5):48-52.

[23]朱光有，张水昌，梁英波，等.川东北地区飞仙关组高含H₂S天然气TSR成因的同位素证据[J].中国科学:D辑，2005，35(11)：1037-1046.

Zhu Guangyou,Zhang Shuichang,Liang Yingbo,et al.Isotopic evidence of TSR origin for natural gas bearing high H₂S contents in the Feixianguan Formation of the northeastern Sichuan Basin,Southwestern China[J].Science in China:Series D,2005, 35(11): 1037-1046.

[24]帅燕华，邹艳荣，彭平安，等.乙烷稳定碳同位素动力学模拟及地质应用[J].地球化学，2006，35（2）：151-156.

Shuai Yanhua,Zou Yanrong,Peng Ping’an,et al.Kinetic modelling of stable carbon isotope ratios of ethane from coal in confined system and its significance in geological application[J].Geochimica,2006，35（2）：151-156.

[25]高先志.利用甲烷碳同位素研究混合气的混合体积[J].沉积学报，1997，15（2）：63-65.

Gao Xianzhi.Volume evaluation of the gas mixed with other gases using methane carbon isotopic compositions[J].Acta Sedimentologica Sinica,1997,15(2):63-65.

[26]上官志冠，白春华，孙明良.腾冲热海地区现代幔源岩浆气体释放特征[J].中国科学:D辑，2000，30（4）：407-414.

Shangguan Zhiguan,Bai Chunhua,Sun Mingliang.Mantle-derived magmatic gas releasing features at the Rehai area,Tengchong County,Yunnan Province,China[J].Science in China:Series D,2000,30(4):407-414.

[27]高玲，上官志冠，魏海泉，等.长白山天池火山近期气体地球化学的异常变化[J].地震地质，2006，28（3）：358-365.

Gao Ling,Shangguan Zhiguan,Wei Haiquan,et al.Recent geochemical changes of hot-spring gases from Tianchi volcano area,Changbai Mountains,Northeast China[J].Seismology and Geology,2006,28(3):358-365.

Possible origins for inverse stable carbon isotopes of gaseous alkanes from the Xujiaweizi fault depression

徐家围子断陷烷烃气碳同位素反序机制

PDF

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 15

Recommended Articles 0

Metrics

Comments

[1]	Sun Lidong, Zhou Xiang, Yang Liang, Zhang Ying, Li Guangwei, Li Guozheng, Xu Jinshuang. Geocheimcal characteristics and accumulation model of deep gas in Yingshan area, Songliao Basin [J]. Acta Petrolei Sinica, 2023, 44(2): 285-298.
[2]	Wu Xiaoqi, Zhou Lingfang, Zhao Shanshan, Qian Yixiong, Wang Yanqing, Yang Jun, Wang Dong. Geochemical characteristics of reservoir bitumen from Dengying Formation in Langzhong area of Sichuan Basin and its implication [J]. Acta Petrolei Sinica, 2022, 43(4): 483-493.
[3]	Zhao Yanhong, Jiang Hanqiao, Li Hongqi. Identification and predictions of water injectivity for water injection channels in water injection development oilfield [J]. Acta Petrolei Sinica, 2021, 42(8): 1081-1090.
[4]	Luo Shengyuan, Chen Xiaohong, Liu An, Li Hai, Sun Chong. Characteristics and geological significance of canister desorption gas from the Lower Cambrian Shuijingtuo Formation shale in Yichang area,Middle Yangtze region [J]. Acta Petrolei Sinica, 2019, 40(8): 941-955.
[5]	Yang Haifeng, Wang Deying, Gao Yanfei, Wang Jun, Li Zhengyu, Qian Geng. Neogene natural gas genesis and hydrocarbon differential enrichment mechanism in the basin marginal sag of Bohai Bay Basin: a case study of the eastern subsag of Huanghekou sag [J]. Acta Petrolei Sinica, 2019, 40(5): 509-518.
[6]	Chen Jianping, Wei Jun, Ni Yunyan, Chen Jianjun, Deng Chunping, Tian Duowen, Hu Jian, Huang Zhenkai, Zhang Dijia, Han Yongke. Geochemical features and maturity classification of crude oil in the Jiuxi depression, Jiuquan Basin [J]. Acta Petrolei Sinica, 2018, 39(5): 491-503.
[7]	Liu Jingdong, Jiang Youlu, Zhang Yuanyuan, Xu Tianwu, Mu Xiaoshui, Wan Tao. Genesis and charge difference of Paleogene tight sandstone gas in Dongpu sag [J]. Acta Petrolei Sinica, 2017, 38(9): 1010-1020.
[8]	Zhuang Xinbing, Gu Yi, Shao Zhibing, You Donghua, Ding Yong, Wan Yanglu. Control effect of geothermal field on hydrocarbon accumulation process in Tarim Basin: a case study of Guchengxu uplift [J]. Acta Petrolei Sinica, 2017, 38(5): 502-511.
[9]	Xiao Fei, Wang Jianguo, Wu Heyuan, Wang Peixi, Zhao Zongju, Tian Jianzhang, Jiang Zaixing, Song Chungang, Tian Ran, Guo Zengqiang. Cambrian sequence stratigraphic framework in the middle-northern North China [J]. Acta Petrolei Sinica, 2017, 38(10): 1144-1157,1167.
[10]	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.
[11]	Qin Hua, Fan Xiaojun, Liu Ming, Hao Jingyu, Liang Bo. Geochemical characteristics and geological significance of desorbed shale gas in Longmaxi Formation, Jiaoshiba area [J]. Acta Petrolei Sinica, 2016, 37(7): 846-854.
[12]	Song Zhenxiang, Gu Yi, Lu Qinghua, Zhou Zhuoming, Li Kuang. Genetic types of natural gas and its exploration direction in Lishu fault sag, Songliao Basin [J]. Acta Petrolei Sinica, 2016, 37(5): 622-630.
[13]	Chen Jianping, Wang Xulong, Deng Chunping, Zhao Zhe, Ni Yunyan, Sun Yongge, Yang Haibo, Wang Huitong, Liang Digang. Investigation of typical reservoirs and occurrence regularity of crude oils in the southern margin of Junggar Basin, Northwestern China [J]. Acta Petrolei Sinica, 2016, 37(4): 415-429.
[14]	Wang Zixiang, Wang Yongli, Wu Baoxiang, Sun Zepeng, Wang Gen, Xu Liang, Zhu Shenzhen, Sun Lina. Characteristics of gas generation and the application of hydrocarbon generation kinetics from low-maturity asphalt in Northwestern Sichuan Basin [J]. Acta Petrolei Sinica, 2016, 37(3): 339-347.
[15]	Chen Jianping, Wang Xulong, Deng Chunping, Zhao Zhe, Ni Yunyan, Sun Yongge, Yang Haibo, Wang Huitong, Liang Digang. Oil-source correlation of typical crude oils in the southern margin, Junggar Basin, Northwestern China [J]. Acta Petrolei Sinica, 2016, 37(2): 160-171.