天然气地球科学

• 天然气地球化学 • 上一篇    下一篇

地球化学指标示踪天然气运移机理及有效性分析——以川西坳陷侏罗系天然气为例

王鹏,刘四兵,沈忠民,黄飞,张文凯,邹黎明   

  1. 1.宜宾学院矿业与安全工程学院,四川 宜宾 644000;
    2.油气藏地质及开发工程国家重点实验室(成都理工大学),四川 成都 610059
  • 收稿日期:2014-07-22 修回日期:2015-01-05 出版日期:2015-06-10 发布日期:2015-06-10
  • 作者简介:王鹏(1986-),男,四川西充人,博士,主要从事油气地质与地球化学研究.E-mail:wp2009@126.com.
  • 基金资助:

    国家自然科学基金(编号:41172119)资助.

Mechanism and Effectiveness of Geochemical Index Trace Natural Gas Migration:A case Study of Jurassic Natural Gas in Western Sichuan Depression

WANG Peng,LIU Si-bing,SHEN Zhong-min,HUANG Fei,ZHANG Wen-kai,ZOU Li-ming   

  1. 1.College of Mining and Safety Engineering,Yibin University,Yibin  644000,China;2.State Key Laboratory of Oil and Gas Reservoir Geology and Exploration,Chengdu University of Technology,Chengdu 610059,China
  • Received:2014-07-22 Revised:2015-01-05 Online:2015-06-10 Published:2015-06-10

摘要:

对常用天然气运移示踪指标示踪天然气运移机理进行了分析,并以川西坳陷侏罗系天然气为例,对不同指标示踪天然气运移有效性进行了探讨。结果表明,CH4含量、N2含量、芳烃/烷烃值在不同相态的运移过程中均有较好的示踪能力,是较为有效的天然气运移示踪指标,而CO2含量与iC4/nC4值示踪效果相对较差。CH4含量在不同的运移相态下,均随运移距离的增加而增加,是最有效的天然气运移方向示踪指标。N2含量、芳烃/烷烃值在不同的运移相态下均有不同的变化规律,选择这2个指标时应充分考虑天然气的运移相态。若已知天然气运移相态,就可依据这2个指标能确定天然气的运移方向;若已知天然气运移方向,则可据这2个指标确定天然气的运移相态。当天然气中CO2含量受碳酸盐矿物影响较大时,CO2可能失去示踪天然气运移的功能。iC4/nC4值能否示踪天然气运移及其示踪机理均存在较多争议,选择该指标示踪天然气运移应慎重。

关键词: 天然气运移, 示踪指标, 水溶相, 游离相, 川西坳陷

Abstract:

Analyzed the trace mechanism of the common tracer natural gas migration index,and took the Jurassic natural gas in western Sichuan Depression as an example to examine the trace effect.The results show that the CH4 content,N2 content and arene/alkane ratio have a better trace ability in the process of migration in different phase,which all are effective migration tracer index.However,the CO2 content and iC4/nC4 ratio are relatively poor in tracing gas migration.The CH4 content is the most effective trace index for the migration direction of natural gas,because it increas with the increasing of the migration distance under the different migration phase.Whether the N2 content or the arene/alkane ratio had the opposite changes in different migration phase,therefore it is need to fully consider the migration phase of natural gas when choosing the two tracer index.When gas migration phase is known,the two tracer indexes can determine gas migration direction;if gas migration direction is known,they can determine gas migration phase.When CO2 content in natural gas was greatly influenced by carbonate minerals,it is likely to lose the function of tracing gas migration.Whether the iC4/nC4 can trace natural gas migration and what is the trace mechanism,both are still more controversial,so choose it to trace gas migration should be carefully.

Key words: Natural gas migration, Trace index, Water-dissolving phase, Separate phase, Western Sichuan Depression

中图分类号: 

  • TE122.2

[1]Wang Tingdong,Yang Yuancong.Geological chromatograph and natural gas migration in Upper Triassic in the central part of Sichuan[J].Natural Gas Industry,1986,6(1):15-20.[王廷栋,杨远聪.地质色层作用与川中上三叠统天然气的运移[J].天然气工业,1986,6(1):15-20.]
[2]Lu Jialan,Fu Jiamo.Study on simulation of natural gas migration in different conditions[J].Oil & Gas Geology,1991,12(2):153-160.[卢家烂,傅家谟.不同条件下天然气运移影响的模拟实验研究[J].石油与天然气地质,1991,12(2):153-160.]
[3]Fu Jiamu,Liu Dehan.The Migration,Eservoir Conditions and Sealing Condition of Natural Gas[M].Beijing:Science Press,1992:80-85.[傅家谟,刘德汉.天然气运移·储集及封盖条件[M].北京:科学出版社,1992:80-85.]
[4]Chen Anding,Li Jianfeng.Study on geochemical index during natural gas migration[J].Natural Gas Geoscience,1994,5(4):38-67.[陈安定,李剑锋.天然气运移的地球化学指标研究[J].天然气地球科学,1994,5(4):38-67.]
[5]Liu Zhaolu,Li Jian,Fang Jiahu,et al.Experimental investigation on physical simulation of gas dissolved in water during migration[J].Natural Gas Geoscience,2004,15(1):32-36.[刘朝露,李剑,方家虎,等.水溶气运移成藏物理模拟实验技术[J].天然气地球科学,2004,15(1):32-36.] 
[6]Wang Peng,Shen Zhongmin,Liu Sibing,et al.Geochemical characteristics of nonhydrocarbon in natural gas in west Sichuan Depression and their implications[J].Natural Gas Geoscience,2014,25(3):394-401.[王鹏,沈忠民,刘四兵,等.川西坳陷天然气中非烃气地球化学特征及应用[J].天然气地球科学,2014,25(3):394-401.]
[7]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.]
[8]Liu Wenhui,Chen Mengjin,Guan Ping,et al.Ternary Geochemical Tracing System in Natural Gas Generation and Accumulation and Its Application[M].Beijing:Science Press,2009:75-84.[刘文汇,陈孟晋,关平,等.天然气成烃·成藏三元地球化学示踪体系及实践[M].北京:科学出版社,2009:75-84.]
[9]Song Yan.Main factors affecting the changes in compositions of natural gas[J].Petroleum Exploration and Development,1991,18(2):42-49.[宋岩.影响天然气组分变化的主要因素[J].石油勘探与开发,1991,18(2):42-49.]
[10]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.]
[11]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.
[12] Prinzhofer A,Santos Neto E V,Battani Anne.Coupled use of carbon isotopes and noble gas isotopes in the Potiguar Basin(Brazil):Fluids migration and mantle influence[J].Marine Petroleum Geology,2010,27(6):1273-1284.
[13]Cai Kaiping,Wang Yingrong,Liu Xuemei,et al.Characteristics of vertical hydrocarbon migration in the Jurassic in southern part of west Sichuan Basin[J].Journal of Southwest Petroleum University,2000,22(4):1-4.[蔡开平,王应蓉,刘雪梅,等.川西南部侏罗系油气垂向运移特征[J].西南石油学院学报,2000,22(4):1-4]
[14]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.]
[15]Xu Guosheng,Liu Shugen,Li Guorong,et al.Phase state evolution in the cross formational flow of natural gas in the west Sichuan foreland basin,China[J].Journal of Chengdu University of Technology,2001,28(4):383-389.[徐国盛,刘树根,李国蓉,等.川西前陆盆地碎屑岩天然气跨层运移过程中的相态演变[J].成都理工大学学报,2001,28(4):383-389.]
[16]Tang Yu,Lü Zhengxiang,Ye Sujuan,et al.Characteristics and controlling factors of natural gas migration and accumulation in the Upper Jurassic Penglaizhen Formation of Chengdu Sag[J].Oil & Gas Geology,2013,34(3):281-287.[唐宇,吕正祥,叶素娟,等.成都凹陷上侏罗统蓬莱镇组天然气运移特征与富集主控因素[J].石油与天然气地质,2013,34(3):281-287.]
[17]Leythaeuser D,Mackenzie A,Schaefer R G,et al.A novel approach for recognition and quantification of hydrocarbon migration effects in shales and stone sequences[J].AAPG Bulletin,1984,68(2):196-219.
[18]Liu Quanyou,Liu Wenhui,Xu Yongchang,et al.Geochemistry of natural gas and crude computation of gas-generated contribution for various source rocks in Sulige Gasfield,Ordos Basin[J].Natural Gas Geoscience,2007,18(5):697-702.[刘全有,刘文汇,徐永昌,等.苏里格气田天然气运移和气源分析[J].天然气地球科学,2007,18(5):697-702.]
[19]Wang Peng,Shen Zhongmin,Liu Sibing,et al.Geochemical characteristics of noble gases in natural gas and their application in tracing natural gas migration in the middle part of the western Sichuan Depression,China[J].Petroleum Science,2013,10(3):327-335.
[20]Ma Liyuan,Zhang Xiaobao,Li Jian,et al.Experimental investigation on variation of geochemical compositions of natural gas during diffusion under stratigraphic condition[J].Petroleum Geology & Expeximent,2004,26(4):365-369.[马立元,张晓宝,李剑,等.地层条件下天然气扩散过程中地球化学组分变化的模拟实验研究[J].石油实验地质,2004,26(4):365-369]
[21]Shi Ji′an,Sun Xiujian,Wang Jinpeng,et al.Physical simulating experiment of natural gas migration and its characteristics of composition differentiation and carbon isotope fractionation[J].Petroleum Geology & Experiment,2005,27(3):293-298.[史基安,孙秀建,王金鹏,等.天然气运移物理模拟实验及其组分分异与碳同位素分馏特征[J].石油实验地质,2005,27(3):293-298.]
[22]Hao Shisheng,Zhang Zhenying.The characteristic of the solubility of natural gas in formation waters and its geological significance[J].Acta Petrolei Sinica,1993,14(2):12-22.[郝石生,张振英.天然气在地层水中的溶解度变化特征及地质意义[J].石油学报,1993,14(2):12-22.]
[23]Fu Xiaotai,Wang Zhenping,Lu Shuangfang.Solution mechanism and solubility equation of gas in water[J].Scientia Sinica:Series B,1996,26(2):124-130.[付晓泰,王振平,卢双舫.气体在水中的溶解机理及溶解度方程[J].中国科学:B辑,1996,26(2):124-130.]
[24]Qin Shengfei,Zhao Jingzhou,Li Mei,et al.A case study:Geochemical tracing indices on the migration of water-soluble gases in Hetianhe Gasfield,Tarim Basin[J].Earth Science Frontiers,2006,13(5):524-532.[秦胜飞,赵靖舟,李梅,等.水溶天然气运移地球化学示踪:以塔里木盆地和田河气田为例[J].地学前缘,2006,13(5):524-532.]
[25]Cui Yongjun,Zhang Qun,Zhang Hong,et al.Adsorption of different rank coals to single component gases[J].Natural Gas Industry,2005,25(1):61-65.[崔永君,张群,张泓,等.不同煤级煤对CH4,N2和CO2单组分气体的吸附[J].天然气工业,2005,25(1):61-65.]
[26]Li Guangzhi,Wu Xianghua.The petroleum geological significance of somerization rates φiC4/φnC4 and φiC5/φnC5 [J].Geophysical & Geochemical Exploration,2002,26(2):135-139.[李广之,吴向华.异构比φiC4/φnC4和 φiC5/φnC5的石油地质意义[J].物探与化探,2002,26(2):135-139.]
[27]Wang Peng,Shen Zhongmin,Liu Sibing,et al.Geochemical characteristics of nonhydrocarbon in natural gas in Western Sichuan Depression and its implications[J].Natural Gas Geoscience,2014,25(3):394-401.[王鹏,沈忠民,刘四兵,等.川西坳陷天然气中非烃气地球化学特征及应用[J].天然气地球科学,2014,25(3):394-401.]
[28]Luo Xiaoquan,Zhang Jian,Bu Tao.Reservoiring pattern of Suining Formation gas pool in Luodai area of the Western Sichuan Depression[J].Natural Gas Industry,,2007,27(3):13-16.[罗啸泉,张箭,卜淘.川西坳陷洛带地区遂宁组气藏成藏模式.天然气工业,2007,27(3):13-16.]
[29]Zhu Hongquan.Depositional Facies and reservoir Characteristics Research and Evaluation of Shaximiao Formation,Middle Area of Western Sichuan Depression[D].Chengdu:Chengdu University of Technology,2009.[朱宏权.川西坳陷中段沙溪庙组沉积相与储层评价研究[D].成都:成都理工大学,2009]
[30]Zhang Jiajia,Zhao Zhen,Duan Aijun,et al.Study on adsorption and diffusion of C4 alkanes in ZSM-5 and Y zeolites[J].Industrial Catalysis,2007,15(9):5-9.[张佳佳,赵震,段爱军,等.C4烷烃在ZSM-5分子筛和Y分子筛上的吸附和扩散研究[J].工业催化,2007,15(9):5-9.]

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