王鹏,沈忠民,刘四兵,吕正祥,冯杰瑞,王君泽
WANG Peng,SHEN Zhong-min,LIU Si-bing,Lv Zheng-xiang,FENG Jie-rui,WANG Jun-ze
摘要:
为了系统认识四川盆地陆相天然气地球化学特征及差异,利用天然气组分、碳同位素与轻烃等地球化学资料,对四川盆地不同地区不同层位陆相天然气地球化学特征进行分析及对比,探讨其差异成因。结果表明,四川盆地陆相天然气地球化学特征在横向与纵向均存在较大差异。横向上,川西地区天然气甲烷含量与干燥系数均高于川中地区,川西地区天然气以干气为主,川中地区天然气以湿气为主,地层厚度、埋深及气源岩的不同是造成上述差异的主要原因。不同地区的天然气组分特征参数纵向变化规律也明显不同,川西地区该变化规律主要受烃源岩成熟度与天然气运移分馏影响,而川中地区则主要受烃源岩成熟度及类型的影响。四川盆地陆相天然气以成熟气与高成熟气为主,仅川中地区侏罗系天然气以成熟气为主,川西地区天然气成熟度最高,川中地区与川南地区上三叠统次之,川中地区侏罗系最低,烃源岩埋深与厚度的差异造就了上述成熟度差异。四川盆地陆相天然气以煤型气为主,同时存在一定的油型气,不同地区油型气的含量、分布、成因与来源均存在较大的差异:川西地区仅须二段存在少量油型气,来自马鞍塘组—小塘子组生成的石油裂解;川中地区侏罗系以油型气为主,来自侏罗系干酪根裂解;川南地区须家河组有一定的石油裂解成因油型气,主要来自下伏气藏。四川盆地上三叠统天然气以水溶相与游离相运移,而侏罗系天然气则主要以游离相运移。[JP]
中图分类号:
[1]Dai Jinxing,Xia Xinyu,Wei Yanzhao,et al.Carbon isotope characteristics of natural gas in the Sichuan Basin,China[J].Petroleum Geology & Experiment,2001,23(2):115-132.[戴金星,夏新宇,卫延召,等.四川盆地天然气的碳同位素特征[J].石油实验地质,2001,23(2):115-132.][2]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.[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.][3]Dai Jinxing,Ni Yunyan,Zou Cainen,et al.Carbon isotope features of alkane gases in the coalmeasures of the Xujiahe Formation in the Sichuan Basin and their significance to gas-source correlation[J].Oil & Gas Geology,2009,30(5):519-529.[戴金星,倪云燕,邹才能,等.四川盆地须家河组煤系烷烃气碳同位素特征及气源对比意义[J].石油与天然气地质,2009,30(5):519-529.][4]Wei Guoqi,Zhang Chunlin,Zhang Fudong,et al.Exploration domain and prospect of giant gas fields in China[J].Natural Gas Industry,2013,33(1):25-34.[魏国齐,张春林,张福东,等.中国大气田勘探领域与前景[J].天然气工业,2013,33(1):25-34.][5]Li Wei,Zou Caineng,Yang Jinli,et al.Types and controlling factors of accumulation and high productivity in the Upper Triassic Xujiahe Formation gas reservoirs,Sichuan Basin[J].Acta Sedimentologica Sinica,2010,28(5):1037-1045.[李伟,邹才能,杨金利,等.四川盆地上三叠统须家河组气藏类型与富集高产主控因素[J].沉积学报,2010,28(5):1037-1045.][6]Liu Wenlong.Characteristics of Forming Jurassic Shallow Gas Reservoirs in Sichuan Basin[D].Chengdu:Southwest Petroleum University,2007.[刘文龙.四川盆地侏罗系浅层天然气成藏特征研究[D].成都:西南石油大学,2007.][7]Wang Shiqian.Geochemical characteristics of Jurassic-Sinian gas in Sichuan Basin[J].Natural Gas Industry,1994,14(6):1-5.[王世谦.四川盆地侏罗系—震旦系天然气的地球化学特征[J].天然气工业,1994,14(6):1-5.][8]Shen Zhongmin,Jiang Min,Liu Sibing,et al.Partition and contrast on genetic type of continental natural gas in the Sichuan Basin[J].Petroleum Geology & Experiment,2010,32(6):560-565.[沈忠民,姜敏,刘四兵,等.四川盆地陆相天然气成因类型划分与对比[J].石油实验地质,2010,32(6):560-565.][JP][9]Wang Lansheng,Chen Shengji,Du Min,et al.Organic geochemistry characteristics and resources potential of Triassic natural gas in Sichuan Basin,China[J].Natural Gas Geoscience,2008,19(2):222-228.[王兰生,陈盛吉,杜敏,等.四川盆地三叠系天然气地球化学特征及资源潜力分析[J].天然气地球科学,2008,19(2):222-228.][10]Qin Shengfei,Tao Shizhen,Tu Tao,et al.Characteristics of natural gas geochemistry and accumulation in western Sichuan Depression[J].Petroleum Exploration and Development,2007,34(1):34-38.[秦胜飞,陶士振,涂涛,等.川西坳陷天然气地球化学及成藏特征[J].石油勘探与开发,2007,34(1):34-38.][JP][11]Shen Zhongmin,Wang Peng,Liu Sibing,et al.Geochemical characteristics of light hydrocarbon in natural gas in the middle member of west Sichuan Depression,China[J].Journal of Chengdu University of Technology:Sinence & Technology Edition,2011,38(5):500-506.[沈忠民,王鹏,刘四兵,等.川西坳陷中段天然气轻烃地球化学特征[J].成都理工大学学报:自然科学版,2011,38(5):500-506.][12]Chen Yicai,Guo Guian,Jiang Yuqiang,et al.Geochemical features of natural gas and the process of Upper Trassic hydrocarbon accumulation in middle Sichuan area[J].Natural Gas Geoscience,2007,27(6):27-30.[陈义才,郭贵安,蒋裕强,等.川中地区上三叠统天然气地球化学特征及成藏过程探讨[J].天然气地球科学,2007,27(6):27-30.][13]Liang Yan,Li Yanjun1,Fu Xiaowen,et al.Origin and whole-hydrocarbon geochemical characteristics of oil and gas from Xujiahe Group of Chuanzhong-Chuannan transitional belt[J].Natural Gas Geoscience,2006,17(4):593-596.[梁艳,李延钧,付晓文,等.川中—川南过渡带上三叠统须家河组油气全烃地球化学特征与成因[J].天然气地球科学,2006,17(4):593-596.][JP][14]Wang Jun.Study on the Depositional System and Sequence Stratigraphy of Upper Triassic Jurassie in Sichuan Basin[D].Chengdu:Chengdu University of Technology,2007.[王峻.四川盆地上三叠统—侏罗系沉积体系及层序地层学研究[D].成都:成都理工大学,2007.][15]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.[[JP4]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.][16]Tang Yue,Wang Liangliang,Cui Zehong.An analysis of the gas source in the Upper Triassic Xujiahe Formation,central Sichuan Basin[J].Geological Bulletin of China,2011,30(10):1608-1613.[唐跃,王靓靓,崔泽宏.川中地区上三叠统须家河组气源分析[J].地质通报,2011,30(10):1608-1613.][17]Chen Shengji,Wan Maoxia,Du Min,et al.Jurassic oil-gas source correlation and hydrocarbon source condition in central Sichuan region[J].Natural Ctas Exploraiton & Development,2005,28(2):11-16.[陈盛吉,万茂霞,杜敏,等.川中地区侏罗系油气源对比及烃源条件研究[J].天然气勘探与开发,2005,28(2):11-16.][18]Behar F,Kressmann,Rudkiewicz J L,et al.Experimental simulation in a confined system and kinetic modeling of kerogen and oil cracking[J].Organic Geochemistry,1992,19(1/3):173-189.[JP][19]Li Yanxia.Identification of oil-cracking gas and kerogen-cracking gas[J].Journal of Xi′an Shiyou University:Natural Science Edition,2008,23(6):42-50.[李艳霞.原油裂解气和干酪根裂解气的判识[J].西安石油大学学报:自然科学版,2008,23(6):42-50.][20]Chen Shijia,Ma Liyu,Fu Xiaowen,et al.Genetic discrimination of marine sapropelic type gas in Tarim Basin[J].Oil & Gas Geology,2004,25(4):416-421.[陈世加,马力宇,付晓文,等.塔里木盆地海相腐泥型天然气的成因判识[J].石油与天然气地质,2004,25(4):416-421.][21]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.][JP][22]Gang Wenzhe,Gao Gang,Hao Shisheng,et al.Carbon isotope of ethane applied in the analyses of natural gas[J].Petroleum Geology & Expeximent,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.][23]Zhang Shiya,Gao Jianjun,Jiang Tairan.A new Method Distinguishing Natural Gas Types with Carbon Isotopes From Methane and Ethane[M].Beijing:Geological Publishing House,1998:48-58.[张士亚,郜建军,蒋泰然.利用甲、乙烷碳同位素判别天然气类型的一种新方法[M].北京:地质出版社,1998:48-58.][24]Song Yan,Xu Yongchang.Origin and identification of natural gases[J].Petroleum Exploration and Development,2005,32(4):24-29.[宋岩,徐永昌.天然气成因类型及其鉴别[J].石油勘探与开发,2005,32(4):24-29.][25]Whiticar M J.Carbon and hydrogen isotope systematics of bacterial formation and oxidation of methane[J].Chemical Geology,1999,161(1/3):291-314.[26]Ye Jun.Assessment of hydrocarbon source rocks inXu-2 member,Ma′antang Formation,gas system in west Sichuan Depression[J].Natural Gas Industry,2003,23(1):21-25.[叶军.川西坳陷马鞍塘组—须二段天然气成矿系统烃源岩评价[J].天然气工业,2003,23(1):21-25.][27]Editorial Committee of Sichuan Oil and Gas Regions.China Petroleum Geology(Volume 10)[M].Beijing:Petroleum Industry Press,1989.[四川油气区石油地质志编写组.中国石油地质志(卷十)[M].北京:石油工业出版社,1989.][28]Stalh W J,Carey Jr B B.Source rock identification by isotope analyses of natural gases form fields in the Vol verde and Delaware Basins,west Texas[J].Chemical Geology,1975,16(4):257-267.[29]Faber E,Gerling P,Dumke I.Gaseous hydrocarbon of unknown origin found while drilling[J].Organic Geochemistry,1987,13(4/6):875-879.[30]Xu Yongchang,Liu Wenhui,Shen Ping.A review of isotope geochemical researches on oil and gas in oil and gas bearing basins[J].Acta Sedimentologica Sinica,2001,19(2):161-168.[徐永昌,刘文汇,沈平.含油气盆地油气同位素地球化学研究概述[J].沉积学报,2001,19(2):161-168.][31]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.][32]Cheng Keming,Jin Weiming,Xiang Zhonghua,et al.Composition characteristics of light hydrocarbons in continental oil and condensate and their geological significance[J].Petroleum Exploration and Development,1987,14(1):33-34.[程克明,金伟明,向忠华,等.陆相原油及凝析油的轻烃单体烃组成特征及地质意义[J].石油勘探与开发,1987,14(1):34-44.][33]Guo Ruichao,Li Yanjun,Wang Tingdong,et al.New progress in sand-carrying fracturing by blending fiber for oil and gas wells in China[J].Special Oil and Gas Reservoirs,2009,16(5):5-9.[郭瑞超,李延钧,王廷栋,等.轻烃参数在全烃地球化学分析油气成藏中的应用[J].特种油气藏,2009,16(5):5-9.][34]Tang Yan,Ye Jun.The sedimentary environment of Jurassic depression in the west of Sichuan[J].Petroleum Geology and Recovery Efficiency,2001,8(6):17-21.[唐艳,叶军.轻烃指纹参数在川西坳陷天然气成藏研究中的应用[J].油气地质与采收率,2001,8(6):17-21.][35]Xie Zengye,Yang Wei,Hu Guoyi,et al.Light hydrocarbon compositions of natural gases and their application in Sichuan Basin[J].Natural Gas Geoscience,2007,18(5):720-725.[谢增业,杨威,胡国艺,等.四川盆地天然气轻烃组成特征及其应用[J].天然气地球科学,2007,18(5):720-725.] |
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