天然气地球化学

川西坳陷中段须家河组天然气碳同位素特征

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  • 1.成都理工大学,油气藏地质及开发工程国家重点实验室,四川 成都 610059;
    2.中国石化西南石油分公司,四川 成都 610081
沈忠民(1954-),男,四川成都人,博士,教授,博士生导师,主要从事油气地球化学及成藏研究.

收稿日期: 2011-06-24

  修回日期: 2011-07-27

  网络出版日期: 2011-10-10

基金资助

国家自然科学基金项目(编号:40772084)资助.

Carbon Isotopes of Xujiahe Formation Nature Gas in Middle Part of Western Sichuan Depression

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  • 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Chengdu University of 
    Technology,Chengdu 610059,China;2.Southwest Petroleum Company of SINOPEC,Chengdu 610081,China

Received date: 2011-06-24

  Revised date: 2011-07-27

  Online published: 2011-10-10

摘要

通过对川西坳陷中段须家河组天然气样品碳同位素分析,认为川西坳陷中段须家河组天然气为典型热解成因煤型气,须四段天然气主要处于成熟阶段,须二段天然气则表现出高成熟的特征。川西坳陷孝泉地区、新场地区、合兴场地区δ13C1值和δ13C213C1值与高庙子地区、丰谷地区δ13C1值和δ13C213C1值存在明显的差异。这种碳同位素地区差异特征,预示了天然气由孝泉地区、新场地区、合兴场地区向高庙子地区和丰谷地区运移的规律。烃源岩生烃、排烃时期的差异,是该区天然气运移方向的控制因素之一,也是间接造成该区天然气碳同位素差异的原因之一。研究区天然气同源不同期的充注特征,导致了研究区须二段部分样品的碳同位素倒转现象。

本文引用格式

沈忠民, 王鹏, 刘四兵, 吕正祥, 冯杰瑞 . 川西坳陷中段须家河组天然气碳同位素特征[J]. 天然气地球科学, 2011 , 22(5) : 834 -839 . DOI: 10.11764/j.issn.1672-1926.2011.05.834

Abstract

Carbon isotopes of Xujiahe Formation gas in the middle part of west Sichuan depression indicate that natural gas is of coal\|type gas origin.Thermal maturity of natural gas in T3x2 and T3x4 Formations is mature and high mature stage,respectively.δ13C1 values in natural gas of Xiaoquan,Xinchang and Hexingchang is more than that of Gaomiaozi and Fenggu,suggesting that natural gas would be migrated from the former places to the.The different times of hydrocarbon generation and expulsion constrain the migration direction of natural gas which sourced from the source rock.So,the same time of hydrocarbon generation and different time of filling history result in the reversal series of carbon isotopes for different number carbon alkanes gases in the T3x2 Formation.

参考文献

[1]Shen Zhongmin,Pan Zhongliang,Lv 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,2009,23(3):36-41.[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,2009,23(3):36-41.]
[2]Fu Suotang,Feng Qiao,Zhang Wenzheng.Characteristics of the individual carbon isotope of natural gas from Suligemiao and Jingbian gas fields in Ordos basin[J].Acta Sedimentologica Sinica,2003,21(3):528-532.[付锁堂,冯乔,张文正.鄂尔多斯盆地苏里格庙与靖边天然气单体碳同位素特征及成因[J].沉积学报,2003,21(3):528-532.]
[3]Shen Zhongmin,Liu Tao,Lv Zhengxiang,et al.A comparison study on the gas source of Jurassic natural gas in the western Sichuan depression[J].Geological Journal of China Universities,2008,14(3):577-582.[沈忠民,刘涛,吕正祥,等.川西坳陷侏罗系天然气气源对比研究[J].高校地质学报,2008,14(3):577-582.]
[4]Zhou Xingxi,Wang Hongjun.Relationship between gas carbon isotope and maturity in cratonic basin,Tarim basin[J].Geochimical,1999,28(6):571-579.[周兴熙,王红军.塔里木盆地克拉通区天然气碳同位素与成熟度关系探讨[J].地球化学,1999,28(6):571-579].
[5]Prinzhofer A,Marcio R M,Tikae 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.
[6]Prinzhofer A,Mello M R,Silva Freitas L C,et al.New geochemical characterization of natural gas and its use in oil and gas evaluation\
[M\]//Petroleum Systems of South Atlantic Margins.AAPG Memoir,73.Tusla:AAPG,2000:107-119.
[7]Cheng Fuqi,Jin Qiang.Composition and isotope fractionations of accumulated natural gas and their significance[J].Natural Gas Geoscience,2005,16(4):522-525.[程付启,金强.成藏后天然气组分与同位素的分馏效应研究[J].天然气地球科学,2005,16(4):522-525.]
[8]Cao Xiaohong,Ni Zhiying.Isotope characteristic and forming cause of natural gas in the Mesozoic of Ordos basin[J].Natural Gas Geoscience,2005,16(5):617-621.[曹晓宏,倪志英.鄂尔多斯盆地中生界天然气同位素特征及成因类型[J].天然气地球科学,2005,16(5):617-621.]
[9]Fan Ranxue.Carbon isotope geochemical evidence of natural gases formation and migration in the middle of west Sichuan depression[J].Progress in Natural Science,1999,9(12):1126-1132.[樊然学.川西坳陷中段气藏天然气形成、运移的碳同位素地球化学证据[J].自然科学进展,1999,9(12):1126-1132.]
[10]
[JP2]Wang Linghui,Shen Zhongmin,Zhao Hu.Carbon isotope features and genetic type of natural gas in the middle section of western Sichuan deperssion[J].Computing Techniques for Geophysical and Geochemical Exploration,2008,30(4):326-330.[王玲辉,沈忠民,赵虎.川西坳陷中段天然气碳同位素特征及其成因类型[J].物探化探计算技术,2008,30(4):326-330.]
[11]Zheng Rongcai,Wei Qinlian,Gao Hongcan,et al.Prediction of the favorable blocks and the calcarenaceous sandstone reservoir characteristics of  upper Triassic in middle section of the west Sichuan depression[J].Journal of Chengdu University,2007,34(5):489-496.[郑荣才,魏钦廉,高红灿,等.川西坳陷中段须四段钙屑砂岩储层特征及有利区块预测[J].成都理工大学学报,2007,34(5):489-496.]
[12]Shen Ping,Xu Yongchang.The isotopic composition of natural gases from continental sediments in China[J].Geochimical,1991,2:144-152.[沈平,徐永昌.中国陆相成因天然气同位素组成特征[J].地球化学,1991,2:144-152.]
[13]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.
[14]
[JP2]Gang Wenzhe,Gao Gang,Hao Shisheng,et al.Carbon isotope of ethane applied in the analyses of genetic types of natural gas[J].Experimental Petroleum Geology,1997,19(2):164-167.[刚文哲,高岗,郝石生,等.论乙烷碳同位素在天然气成因类型研究中的应用[J].石油实验地质,1997,19(2):164-167.]
[15]Whiticar M J.Correlation of natural gases with their sources\
[M\]//Magoon L B,Dow W G.The Petroleum System:From Source to Trap.AAPG,Memoir,60.Tusla:AAPG,1994:261-283.
[16]Dai Jinxing,Pei Xigu,Qi Houfa.Geology of Natural Gas in China[M].Beijing:Petroleum Industry Press,1992.[戴金星,裴锡古,戚厚发.中国天然气地质学[M].北京:石油工业出版社,1992.]
[17]
[JP2]Rooney M A,Claypool G E,Chung H M.Modeling thermogenic gas generation using carbon isotope ratios of natural gas hydrocarbons[J].Chemical Geology,1995,126(3/4):219-232.
[18]Berner U,Faber E,Scheeder G,et al.Primary cracking of algal and landplant kerogens:Kinetic models of isotope variations in methane,ethane and propane[J].Chemical Geology,1995,126(3/4):233-246.
[19]Li Zongliang,Jiang Youlu.Methods and applications of geochemical trace for natural gas migration[J].Xinjiang Petroleum Geology,2008,29(6):753-755.[李宗亮,蒋有录.天然气运移地球化学示踪方法及其应用[J].新疆石油地质,2008,29(6):753-755.]
[20]He Xingui,Yang Xianli.Trailing research on the continental gas source rock in the section of west Sichuan depreesion[J].Natural Gas Industry,2002,22(3):14-17.[何心贵,杨先利.川西坳陷中段陆相天然气源岩追踪[J].天然气工业,2002,22(3):14-17.]
[21]Chen Dongxia,Huang Xiaohui,Li Lintao,et al.Characteristics and history of hydrocarbon expulsion of the upper Tertiary source rocks in the western Sichuan depression[J].Natural Gas Industry,2010,30(5):41-45.[陈冬霞,黄小惠,李林涛,等.川西坳陷上三叠统烃源岩排烃特征与排烃史[J].天然气工业,2010,30(5):41-45.]
[22]
[KG*4/5]Cao Lie,Zeng Yan.Petroleum system of upper Triassic in west Sichuan depression[J].Xinjiang Petroleum Geology,2005,26(5):520-524.[曹烈,曾焱.川西坳陷上三叠统含油气系统[J].新疆石油地质,2005,26(5):520-524.]
[23]Dai Jinxing.A brief discussion on the problem of the geneses of the carbon isotopic se-ries reversal in organogenic alkane gases[J].Natural gas Industry,1992,10(6):1-20.[戴金星.概论有机烷烃气碳同位素系列倒转的成因问题[J].天然气工业,1992,10(6):1-20.]
[24]Dai Jinxing.Carbon and hydrogen isotopic compositions and origin identification of different types natural gas[J ].Natural Gas Geoscience,1993,4(2):1-40.[戴金星.天然气碳氢同位素特征和各类天然气鉴别[J].天然气地球科学,1993,4(2):1-40.]
[25]Liu Wenhui,Liu Quanyou,Xu Yongchang,et al.The gaining and applying of data in natural gas geochemistry study[J].Natural Gas Geoscience,2003,14(1):21-28.[刘文汇,刘全有,徐永昌,等.天然气地球化学数据的获取及应用[J].天然气地球科学,2003,14(1):21-28.]
[26]Ma Yongsheng.Geochemical characteristics and origin of natural gases from Puguang gas field on eastern Sichuan basin[J].Natural Gas Geoscience,2008,19(1):1-7.[马永生.普光气田天然气地球化学特征及气源探讨[J].天然气地球科学,2008,19(1):1-7.]
[27]Yang Keming,Ye Jun,Lv Zhengxiang.Characteristics of gas distribution and reservoiring in upper Triassic Xujiahe Formation in western Sichuan depression[J].Oil & Gas Geology,2004,25(5):501-505.[杨克明,叶军,吕正祥.川西坳陷上三叠统须家河组天然气分布及成藏特征[J].石油与天然气地质,2004,25(5):501-505.]
[28]Liu Sibing.Research on Origin of Fluid and Gas Dynamic Accumulation Characteristics of Xujiahe Formation in the Middle Member of West Sichuan Depression[D].Chengdu:Chengdu University of Technology,2009:1-16.[刘四兵.川西坳陷中段须家河组流体成因与天然气动态成藏特征研究[D].成都:成都理工大学,2009:1-16.]

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