川西新场地区须二段天然气成因类型和来源

白帆; 吴小奇; 曾华盛; 袁晓宇

doi:10.11781/sysydz201505633

川西新场地区须二段天然气成因类型和来源

doi: 10.11781/sysydz201505633

1.
中国石化石油物探技术研究院, 南京 211103
2. 中国石化石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126

基金项目: 国家自然科学基金(青年科学基金)项目(41302118)资助。

详细信息

作者简介:
白帆(1986—),女,硕士,助理工程师,从事储层与烃源岩预测研究。E-mail:baifan.swty@sinopec.com。

中图分类号: TE122.1⁺11
计量
- 文章访问数: 964
- HTML全文浏览量: 60
- PDF下载量: 1001
- 被引次数: 0
出版历程
- 收稿日期: 2014-10-20
- 修回日期: 2015-08-03
- 刊出日期: 2015-09-28

Genetic types and sources of natural gases reservoired in the second member of the Xujiahe Formation in the Xinchang area of the Western Sichuan Depression

1.
SINOPEC Geophysical Research Institute, Nanjing, Jiangsu 211103, China
2. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China

摘要

摘要: 须二段是四川盆地陆相天然气勘探的重要层系之一。天然气地球化学特征研究表明,新场地区须二段天然气干燥系数普遍高于0.95,为典型干气;δ¹³C₁和δ¹³C₂值分别为-34.5‰~-30.3‰和-29.1‰~-23.4‰,δD₁值介于-168‰~-157‰之间,烷烃气碳、氢同位素系列主体表现出典型正序特征,部分样品发生了乙、丙烷碳同位素的部分倒转。新场须二段天然气为混合成因,重烃气表现出以原油裂解气为主并混有部分煤型气的特征,而甲烷则主要表现出煤型气的特点。气源对比研究表明,新场须二段天然气主要来自马鞍塘组—小塘子组烃源岩,须二段自身烃源岩也有一定的贡献。
- 天然气 /
- 地球化学特征 /
- 气源对比 /
- 新场构造带 /
- 川西坳陷 /
- 四川盆地
Abstract: The second member of the Upper Triassic Xujiahe Formation is an important exploration target for terrestrial natural gases in the Sichuan Basin.The geochemical characteristics of natural gases indicated that the gases reservoired in the second member of the Xujiahe Formation in the study area have high dryness coefficients generally over 0.95.The δ¹³C₁, δ¹³C₂ and δD₁ values are in the ranges of -34.5‰~-30.3‰, -29.1‰~-23.4‰ and -168‰~-157‰, respectively.The alkane gases mainly display positive stable carbon and hydrogen isotope values with several samples being partially reversed between ethane and propane carbon isotopes.These gases are of mixed origin, and the heavy hydrocarbon gases were mainly derived from the secondary cracking of oil augmented with coal-type gas, whereas methane was mainly a coal-type gas.Gas-source correlations indicated that the natural gases reservoired in the second member of the Xujiahe Formation were derived mainly from the source rocks in the Ma'antang and Xiaotangzi formations and augmented by those in the second member of the Xujiahe Formation itself.
- natural gas /
- geochemical characteristics /
- gas-source correlation /
- Xinchang tectonic belt /
- Western Sichuan Depression /
- Sichuan Basin

HTML全文

参考文献(43)

[1]	蔡立国,饶丹,潘文蕾,等.川东北地区普光气田成藏模式研究[J].石油实验地质,2005,27(5):462-467.Cai Liguo,Rao Dan,Pan Wenlei,et al.The evolution model of the Puguang gas field in northeast of Sichuan[J].Petroleum Geology & Experiment,2005,27(5):462-467.
[2]	Ma Y S,Zhang S C,Guo T L,et al.Petroleum geology of the Puguang sour gas field in the Sichuan Basin, SW China[J].Marine and Petroleum Geology,2008,25(4/5):357-370.
[3]	Hao F,Guo T L,Zhu Y M,et al.Evidence for multiple stages of oil cracking and thermochemical sulfate reduction in the Puguang gas field, Sichuan Basin, China[J].AAPG Bulletin,2008,92(5):611-637.
[4]	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.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.
[5]	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.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.
[6]	Dai J X,Ni Y Y,Zou C N,et al.Stable carbon isotopes of alkane gases from the Xujiahe coal measures and implication for gas-source correlation in the Sichuan Basin, SW China[J].Organic Geochemistry,2009,40(5):638-646.
[7]	Dai J X,Ni Y Y,Zou C N.Stable carbon and hydrogen isotopes of natural gases sourced from the Xujiahe Formation in the Sichuan Basin, China[J].Organic Geochemistry,2012,43(1):103-111.
[8]	吴小奇,黄士鹏,廖凤蓉,等.四川盆地须家河组及侏罗系煤成气碳同位素组成[J].石油勘探与开发,2011,38(4):418-427.Wu Xiaoqi,Huang Shipeng,Liao Fengrong,et al.Carbon isotopic compositions of coal-derived gas in the Xujiahe Formation and Jurassic in the Sichuan Basin[J].Petroleum Exploration and Development,2011,38(4):418-427.
[9]	王东.阆中地区须家河组烃源岩动态演化模拟[J].断块油气田,2014,21(1):18-23.Wang Dong.Dynamic evolution simulation of Xujiahe Formation source rocks in Langzhong Area[J].Fault-Block Oil and Gas Field,2014,21(1):18-23.
[10]	赖锦,王贵文,郑懿琼.川中蓬莱地区须二段储层岩性岩相类型及解释方法[J].断块油气田,2013,20(1):33-37.Lai Jin,Wang Guiwen,Zheng Yiqiong.Types and interpretation methods of lithology and lithofacies of the second member of Xujiahe Formation in Penglai Area,Central Sichuan Basin[J].Fault-Block Oil and Gas Field,2013,20(1):33-37.
[11]	杨见,张敏,陈晓娜.川西坳陷上三叠统须一段烃源岩地球化学特征分析[J].长江大学学报:自然科学版,2012,9(12):41-43.Yang Jian,Zhang Min,Chen Xiaona.Identification of Xu1 Member as main source rock in Upper Triassic from West Sichuan Depression[J].Journal of Yangtze University:Natural Science Edition,2012,9(12):41-43.
[12]	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.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.
[13]	Xiong Y Q,Geng A S,Liu J Z.Kinetic-simulating experiment combined with GC-IRMS analysis: application to identification and assessment of coal-derived methane from Zhongba Gas Field (Sichuan Basin, China)[J].Chemical Geology,2004,213(4):325-338.
[14]	Zhu G Y,Zhang S C,Huang H P,et al.Gas genetic type and origin of hydrogen sulfide in the Zhongba gas field of the western Sichuan Basin, China[J].Applied Geochemistry,2011,26(7):1261-1273.
[15]	廖凤蓉,于聪,吴伟,等.四川盆地中坝气田天然气碳、氢同位素特征及气源探讨[J].天然气地球科学,2014,25(1):79-86.Liao Fengrong,Yu Cong,Wu Wei,et al.Stable carbon and hydrogen isotopes of natural gas from the Zhongba Gasfield in the Sichuan Basin and implication for gas-source correlation[J].Natural Gas Geoscience,2014,25(1):79-86.
[16]	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:自然科学版,2009,36(3):225-230.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:Science & Technology Edition,2009,36(3):225-230.
[17]	叶军.川西新场851井深部气藏形成机制研究:X851井高产工业气流的发现及其意义[J].天然气工业,2001,21(4):16-20.Ye Jun.Research on the mechanism of forming deep T₃x² gas reservoir in Xinchang gas field in west Sichuan depression:A discovery of high-production commercial gas in well X-851 and its significance[J].Natural Gas Industry,2001,21(4):16-20.
[18]	王睿婧,刘树根,张贵生,等.川西坳陷孝泉—新场—合兴场地区须二段天然气气源判定及成藏分析[J].岩性油气藏,2011,23(4):100-105.Wang Ruijing,Liu Shugen,Zhang Guisheng,et al.Judgement of natural gas resource and accumulation analysis of the second member of Xujiahe Formation in Xiaoquan-Xinchang-Hexingchang area of West Sichuan depression[J].Lithologic Reservoirs,2011,23(4):100-105.
[19]	秦胜飞,赵孟军,宋岩,等.川西前陆盆地天然气成藏过程[J].地学前缘,2005,12(4):517-524.Qin Shengfei,Zhao Mengjun,Song Yan,et al.The gas accumulation process in Western Sichuan Foreland Basin[J].Earth Science Frontiers,2005,12(4):517-524.
[20]	罗啸泉,陈兰.川西坳陷形成演化及其与油气的关系[J].油气地质与采收率,2004,11(1):16-19.Luo Xiaoquan,Chen Lan.Forming evolution of western Sichuan Depression and its relation with oil and gas[J].Petroleum Geology and Recovery Efficiency,2004,11(1):16-19.
[21]	冷济高,杨克明,杨宇.川西坳陷孝泉—丰谷构造带须家河组超压与天然气成藏关系研究[J].石油实验地质,2011,33(6):574-579,586.Leng Jigao,Yang Keming,Yang Yu.Relationship between natural gas accumulation and overpressure in Xujiahe Formation, Xiaoquan-Fenggu structural belt, Western Sichuan Depression[J].Petroleum Geology & Experiment,2011,33(6):574-579,586.
[22]	杨克明.四川盆地"新场运动"特征及其地质意义[J].石油实验地质,2014,36(4):391-397.Yang Keming.Characteristics of Xinchang Movement in Sichuan Basin and its geological significance[J].Petroleum Geology & Experiment,2014,36(4):391-397.
[23]	杨克明.川西坳陷须家河组天然气成藏模式探讨[J].石油与天然气地质,2006,27(6):786-793,803.Yang Keming.Gas reservoiring mode in Xujiahe Formation of western Sichuan depression[J].Oil & Gas Geology,2006,27(6):786-793,803.
[24]	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.Ye Jun.Assessment of hydrocarbon source rocks in Xu-2 Member,Ma'antang Formation,gas system in West Sichuan Depression[J].Natural Gas Industry,2003,23(1):21-25.
[25]	叶军,曾华盛.川西须家河组泥页岩气成藏条件与勘探潜力[J].天然气工业,2008,28(12):18-25.Ye Jun,Zeng Huasheng.Pooling conditions and exploration prospect of shale gas in Xujiahe Formation in Western Sichuan Depression[J].Natural Gas Industry,2008,28(12):18-25.
[26]	冷济高,杨克明,叶军,等.孝泉—丰谷构造带须家河组天然气烷烃碳同位素特征及气源对比[J].石油天然气学报,2011,33(6):16-21.Leng Jigao,Yang Keming,Ye Jun,et al.Carbon isotope features of alkane gases of Xujiahe Formation in Xiaoquan-Fenggu structural belt and their gas-source correlation[J].Journal of Oil and Gas Technology,2011,33(6):16-21.
[27]	戴金星,裴锡古,戚厚发.中国天然气地质学(卷一)[M].北京:石油工业出版社,1992:1-149.Dai Jinxing,Pei Xigu,Qi Houfa.Natural gas geology in China:Vol.1[M].Beijing:Petroleum Industry Press,1992:1-149.
[28]	Bernard B B,Brooks J M,Sackett W M.Natural gas seepage in the Gulf of Mexico[J].Earth and Planetary Science Letters,1976,31(1):48-54.
[29]	张士亚,郜建军,蒋泰然.利用甲、乙烷碳同位素判识天然气类型的一种新方法[M]//石油与天然气地质文集(第一集).北京:地质出版社,1988:48-58.Zhang Shiya,Gao Jianjun,Jiang Tairan.A new approach to identify the natural gas types by carbon isotopes of methane and ethane[M]//Collected works on oil and gas geology (Vol 1).Beijing:Geological Press,1988:48-58.
[30]	陈践发,李春园,沈平,等.煤型气烃类组分的稳定碳、氢同位素组成研究[J].沉积学报,1995,13(2):59-69.Chen Jianfa,Li Chunyuan,Shen Ping,et al.Carbon and hydrogen isotopic characteristics of hydrocarbons in coal type gas from China[J].Acta Sedimentologica Sinica,1995,13(2):59-69.
[31]	戴金星,秦胜飞,陶士振,等.中国天然气工业发展趋势和天然气地学理论重要进展[J].天然气地球科学,2005,16(2):127-142.Dai Jinxing,Qin Shengfei,Tao Shizhen,et al.Developing trends of natural gas industry and the significant progress on natural gas geological theories in China[J].Natural Gas Geoscience,2005,16(2):127-142.
[32]	Rooney M A,Claypool G E,Moses Chung H.Modeling thermogenic gas generation using carbon isotope ratios of natural gas hydrocarbons[J].Chemical Geology,1995,126(3/4):219-232.
[33]	Jenden P D,Kaplan I R.Origin of natural gas in Sacramento Basin,California[J].AAPG Bulletin,1989,73(4):431-453.
[34]	刘文汇,张建勇,范明,等.叠合盆地天然气的重要来源:分散可溶有机质[J].石油实验地质,2007,29(1):1-6.Liu Wenhui,Zhang Jianyong,Fan Ming,et al.Gas generation character of dissipated soluble organic matter[J].Petroleum Geology & Experiment,2007,29(1):1-6.
[35]	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.
[36]	罗小平,曹军,沈忠民.川西坳陷中段上三叠统须家河组储层沥青地球化学特征及成因研究[J].矿物岩石,2009,29(1):93-98.Luo Xiaoping,Cao Jun,Shen Zhongmin.Geochemical characte-ristics and genesis of reservoir bitumen of Xujiahe Formation in the Upper Triassic of Western Sichuan Depression[J].Journal of Mineralogy and Petrology,2009,29(1):93-98.
[37]	Liu Q Y,Dai J X,Li J,et al.Hydrogen isotope composition of natural gases from the Tarim Basin and its indication of depositional environments of the source rocks[J].Science in China:Series D:Earth Sciences,2008,51(2):300-311.
[38]	Schoell M.The hydrogen and carbon isotopic composition of methane from natural gases of various origins[J].Geochimica et Cosmochimica Acta,1980,44(5):649-661.
[39]	于聪,龚德瑜,黄士鹏,等.四川盆地须家河组天然气碳、氢同位素特征及其指示意义[J].天然气地球科学,2014,25(1):87-97.Yu Cong,Gong Deyu,Huang Shipeng,et al.Geochemical characte-ristics of carbon and hydrogen isotopes for the Xujiahe Formation natural gas in Sichuan Basin[J].Natural Gas Geoscience,2014,25(1):87-97.
[40]	庞雄奇,周海燕,李建青,等.判别混源气母质转化程度的定量模式及其应用[J].石油学报,2000,21(5):16-20.Pang Xiongqi,Zhou Haiyan,Li Jianqing,et al.The quantitative identification model of the evolution degree of mixing natural gas source material and the application of this model[J].Acta Petrolei Sinica,2000,21(5):16-20.
[41]	江兴歌,曾华盛,朱建辉,等.川西坳陷中部上三叠统烃源岩动态演化模拟[J].石油与天然气地质,2012,33(4):545-551.Jiang Xingge,Zeng Huasheng,Zhu Jianhui,et al.Dynamic evolution simulation of the Upper Triassic source rocks in central part of western Sichuan Depression[J].Oil & Gas Geology,2012,33(4):545-551.
[42]	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,2010.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,2010.
[43]	Dai J X,Xia X Y,Qin S F,et al.Origins of partially reversed alkane δ¹³C values for biogenic gases in China[J].Organic Geochemistry,2004,35(4):405-411.