天然气地质学

准噶尔盆地滴南凸起—五彩湾地区天然气成因与成藏过程分析

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  • 1.中国石油勘探开发研究院,北京  100083;2.提高采收率国家重点实验室,北京  100083;
    3.中国石油天然气集团公司盆地构造与油气成藏重点实验室,北京  100083;
    4.中国石油新疆油田公司勘探开发研究院,新疆  克拉玛依  841000
赵孟军(1965-),男,河北巨鹿人,高级工程师,博士,主要从事石油、天然气地质与勘探研究

收稿日期: 2011-03-31

  修回日期: 2011-07-15

  网络出版日期: 2011-08-10

Genetic Origin of Natural Gas and Its Filling Historyin Dinan Uplift-Wucaiwan of Junggar Basin

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  • 1.Research Institute of Petroleum Exploration and Development,PetroChina,Beijing 100083,China;
    2.State Key Laboratory of Enhanced Oil Recovery,Beijing  100083,China;
     3.Basin Structure and Accumulation Laboratory,CNPC,Beijng 100083,China;
    4.Research Institute of Petroleum Exploration and Development,Xinjiang Oil Field Company, Kelamayi  841000,China

Received date: 2011-03-31

  Revised date: 2011-07-15

  Online published: 2011-08-10

摘要

一般认为天然气具有晚期成藏的特征,但通过对准噶尔盆地滴南凸起—五彩湾地区石炭系天然气成藏的研究则得到了不同的认识。研究区的天然气以湿气为主,干燥系数均值为0.92,非烃气体中N2含量均值为3.04%;而天然气的δ13C1均值为-32.12‰,明显偏高,反映出天然气成熟度已经处于干气阶段。通过对研究区天然气成因与成藏分析,认为该地区具有“早期聚集、晚期保存”的天然气成藏过程,总体来说该地区经历了海西晚期、印支晚期和燕山中期的多期油气充注和成藏,但燕山中期是该地区成藏的关键时期,并且该时期主要聚集的是石炭系烃源岩在RO值达到0.8%~1.2%之后生成的天然气,这也是造成该地区天然气组分碳同位素值偏高的主要原因。

本文引用格式

赵孟军, 王绪龙, 达江, 向宝力, 宋岩, 秦胜飞 . 准噶尔盆地滴南凸起—五彩湾地区天然气成因与成藏过程分析[J]. 天然气地球科学, 2011 , 22(4) : 595 -601 . DOI: 10.11764/j.issn.1672-1926.2011.04.595

Abstract

Generally,the time of natural gas accumulation is late.But the filling history of the Carboniferous natural gas in the Dinan uplift\|Wucaiwan of Junggar basin gives a special sample.Natural gas has low dryness coefficient of 0.92 and N2 content of 3.04%,but the δ13C1 value of -32.12‰ indicates that natural gas would be at the highly mature stage.By means of genetic origin of natural gas and recovery of filling history,we consider that natural gas was formed at early stage but accumulate at late stage in the Dinan uplift\|Wucaiwan of Junggar basin.There are three stages of gas accumulation,including late Hercynian,late Indo\|Chinese and middle Yanshan,but the Yanshan is the main stage of gas accumulation.At Yanshan Era,natural gas was derived from the Carboniferous source rock with thermal maturity of 0.8%-1.2%RO,causing methane enriched in 13C.

参考文献

[1]Li Jian,Luo Xia,Liu Renhe,et al.Characteristics of organic geochemistry of natural gas accumulated in late stage in China[J].Acta Sedmentologica Sinica,2004,22(6):33-38.[李剑,罗霞,刘人和,等.中国天然气晚期成藏的地球化学特征[J].沉积学报,2004,22(6):33-38.]
[2]Dai Jinxing,Zhao Jingzhou.Important role of the formation of gas accumulations in the late stage in the formation of large gas fields[J].Geology in China,2003,30(1):10-19.[戴金星,赵靖舟.晚期成藏对大气田形成的重大作用[J].中国地质,2003,30(1):10-19.]
[3]Song Yan,Wang Xishuang.The controlling action of modern structure movement on the late accumulation of natural gas[J].Natural Gas Geoscience,2003,14(2):103-106.[宋岩,王喜双.新构造运动对天然气晚期成藏的控制作用[J].天然气地球科学,2003,14(2):103-106.]
[4]Zhao Mengjun,Song Yan,Liu Shaobo,et al.Accumulation systems and filling process of natural gas in Junggar basin[J].Geological Review,2009,55(2):215-224.[赵孟军,宋岩,柳少波,等.准噶尔盆地天然气成藏体系和成藏过程分析[J].地质论评,2009,55(2):215-224.]
[5]Yang Bin,Li Jianxin.Carboniferous oil in east Junggar basin[J].Xinjiang Petroleum Geology,1992,13(2):171-178.[杨斌,李建新.准噶尔盆地东部油区石炭系原油探讨[J].新疆石油地质,1992,13(2):171-178.]
[6]]Wang Xulong.Carboniferous source rock in Junggar basin[J].Xinjiang Petroleum Geology,1996,17(3):230-236.[王绪龙.准噶尔盆地石炭系的生油问题[J].新疆石油地质,1996,17(3):230-236.]
[7]]Meng Fanyou,Paerhati.Analysis of carboniferous source rock in Junggar basin[J].Acta Xinjiang Petroleum Institute,1999,11(2):1-6.[孟繁有,帕尔哈提.准噶尔盆地石炭系成气潜力评价[J].新疆石油学院学报,1999,11(2):1-6.]
[8]Xu Xingyou.Carboniferous source rock in Kelameili of Junggar basin[J].Petroleum Geology and Recovery Efficiency,2005,12(1):38-41.[徐兴友.准噶尔盆地东部克拉美丽地区石炭系烃源岩研究[J].油气地质与采收率,2005,12(1):38-41.]
[9]Shi Xin,Wang Xulong,Zhang Xia,et al.Distribution and geochemistry features of Carboniferous source rock in Junggar basin[J].China Petroleum Exploration,2005,10(1):34-39.[石昕,王绪龙,张霞,等.准噶尔盆地石炭系烃源岩分布及地球化学特征[J].中国石油勘探,2005,10(1):34-39.]
[10]Chen Kexun,Liu Yong.Geochemiatry features and oil genetic of the upper Permian source rock in east Junggar basin[J].Xinjiang Petroleum Geology,1989,10(4):74-80.[陈克迅,刘勇.准噶尔盆地东部上二叠统生油岩地化特征及油源对比[J].新疆石油地质,1989,10(4):74-80.]
[11]Xie Hongwei,Tian Shicheng,Hu Ping.Condition for hydrocarbon accumulation of Carboniferous effusive rock in east Junggar basin[J].Special Oil and Gas Reservoirs,2008,15(3):29-32.[解宏伟,田世澄,胡平.准噶尔盆地东部石炭系火山岩成藏条件[J].特种油气藏,2008,15(3):29-32.]
[12]Wang Xulong,Zhao Mengjun,Xiang Baoli,et al.Carboniferous source rocks in the Ludong-Wucaiwan area,Junggar basin,NW China[J].Petroleum Exploration and Development,2010,37(5):523-530.[王绪龙,赵孟军,向宝力,等.准噶尔盆地陆东—五彩湾地区石炭系烃源岩[J].石油勘探与开发,2010,37(5):523-530.][JP]
[13]Prinzhofer A,Lorant F.Ethane/propane diagram for gas genesis characterization[C]//Proceedings of the 18th International Meeting.
Eropean Maastricht:Assosiation of Organic Chemistry,1997:567-568.
[14]Clayton C.Carbon isotope fractionation during natural gas generation from kerogen[J].Marine and Petroleum Geology,1991,(8):232-240.
[15]Cramer B,Krooss B M,Littke R.Modelling isotope fractionation during primary cracking of natural gas:A reaction kinnetic approach[J].Chemical Geology,1998,149:235-250.
[16]Behar F,Kressmann S,Rudkiewicz J L,et al.Exprimental simulation in a confined system and kinetic modeling of kerogen and oil cracking[J].Organic Geochemistry,1992,19(1/3):173-189.
[17]]Prinzhofer A,Huc A Y.Genetic and post-genetic molecular and isotopic fractionations in natural gases[J].Chemical Geology,1995,126:281-290.
[18]Zhao Mengjun,Lu Shuangfang.Natural gas from secondary cracking of crude oil:An important pattern of gas generation[J].Geological Review,2000,46(6):645-650.[赵孟军,卢双舫.原油二次裂解气——天然气重要的生成途径[J].地质评论,2000,46(6):645-650.]
[19]Zhao Mengjun,Zeng Fangang,Qin Shengfei,et al.Two pyrolysis gas in Tarim basin[J].Natural gas Industry,2001,21(1):35-38.[赵孟军,曾凡刚,秦胜飞,等.塔里木发现和证实两种裂解气[J].天然气工业,2001,21(1):35-38.]
[20]Schoell M.The hydrogen and carbon isotopic composition of methane from natural gases of various origins[J].Geochimica et Cosmochimica Acta,1980,44:649-661.
[21]Rooney M A,Cloypool G E,Chung H M.Modeling thermogenic gas generation using carbon isotope ratios of natural gas hydrocarbons[J].Chemical Geology,1995,126:219-232.
[22]Kroos B M,Littke R,Muller B,et al.Generetion of nitrogen and methane from sedimentary organic matter:Implications on the dynamics of natural gas accumulations[J].Chemical Geology,1995,126:219-232.
[23]Dai Jinxin,Pei Xigu,Qi Houfa.China Natural Gas Geology:Volume Ⅱ[M].Beijing:Petroleum Industry Press,1992.[戴金星,裴锡古,戚厚发.中国天然气地质学:卷二[M].北京:石油工业出版社,1992.]
[24]Liu Zhen,Jin Bo,He Weiying,et al.Generation and distribution of abnormal formation pressures in eastern part of the Junggar basin[J].Chinese Journal of Geology,2002,37(1):9l-104.[刘震,金博,贺维英,等.准噶尔盆地东部地区异常压力分布特征及成因分析[J].地质科学,2002,37(1):9l-104.]
[25]Wang Zhaoming,Wang Qinghua,Zhao Mengjun,et al.Hetianhe gas field,a large gas field accumulated in late period[J].Science in China:Series D,2008,52(supplement):84-95.
[26]Zhao Mengjun,Pan Wenqing,Han Jianfa,et al.The accumulation process and model for the Ordovician buried hill reservoir in the western Lunnan area,Tarim basin[J].Chinese Science Bulletin,2007,52(supplement Ⅱ):224-235.
[27]Zhuo Qingong,Song Yan,Ni Pei,et al.Experiences on application of fluid inclusion in research of reservoir[J].Natural Gas Geoscience,2011,22(1):122-127.[桌勤功,宋岩,倪培,等.油气藏研究中流体包裹体应用的几点体会[J].天然气地球科学,2011,22(1):122-127.]
[28]Kang Yongshang,Qiu Nansheng,Liu Luofu,et al.Influence of fluid dynamic systems on homogenization temperatures of fluid inclusions and its significance[J].Acta Geologica Sinica,2004,78(5):704-709.[康永尚,邱楠生,刘洛夫,等.流体动力系统对流体包裹体均一温度的影响及其意义——以准噶尔盆地陆东地区为例[J].地质学报,2004,78(5):704-709.]

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