淡水和咸水湖相泥质烃源岩不同赋存态有机质的地球化学特征

赵悦; 蔡进功; 谢奥博; 董哲; 周祺盛; 雷天柱; 杨燕

doi:10.11781/sysydz201805705

淡水和咸水湖相泥质烃源岩不同赋存态有机质的地球化学特征

doi: 10.11781/sysydz201805705

赵悦^1,2,
蔡进功^2, ,,
谢奥博²,
董哲²,
周祺盛²,
雷天柱³,
杨燕^3,4

1. 中国石油勘探开发研究院, 北京 100083;
2. 同济大学海洋地质国家重点实验室, 上海 200092;
3. 甘肃省油气资源研究重点实验室/中国科学院油气资源研究重点实验室, 兰州 730000;
4. 中国石油冀东油田分公司, 河北唐山 063004

基金项目:

国家自然基金项目“泥页岩中不同赋存态烃的分离及特征研究”（41372130）、“泥页岩中有机质的存在对蒙脱石伊利石化进程影响的研究”（41672115）和国家重大科技专项“济阳坳陷古近系烃源岩有机—无机协同演化及其资源潜力评价”（2016ZX05006-001-003）联合资助。

详细信息

作者简介:
赵悦(1991-),女,博士,从事油气地球化学研究。E-mail:zhyue_1991@126.com。

通讯作者:
蔡进功(1961-),男,博士,教授,从事油气地球化学和海洋沉积学研究。E-mail:jgcai@tongji.edu.cn。

中图分类号: TE122.113
计量
- 文章访问数: 1070
- HTML全文浏览量: 57
- PDF下载量: 179
- 被引次数: 0
出版历程
- 收稿日期: 2018-01-05
- 修回日期: 2018-08-01
- 刊出日期: 2018-09-28

Geochemical investigation of organic matter of various occurrences released via sequential treatments of two argillaceous source rock samples from fresh and saline lacustrine environments

1. Research Institute of Petroleum Exploration and Development, PetroChina, Beijing 100083, China;
2. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China;
3. Key Laboratory of Petroleum Resources Research, Institute of Geology and Geophysics, Chinese Academy of Science, Lanzhou, Gansu 730000, China;
4. Jidong Oil Company, PetroChina, Tangshan, Hebei 063004, China

摘要

摘要: 泥质烃源岩中的有机质存在多种赋存形式，其中与无机矿物结合形成有机—无机复合体是有机质保存的重要方式之一。为了对比研究泥质烃源岩中不同赋存态有机质的地球化学特征，选取东营凹陷沙三下亚段（淡水湖相）和沙四上亚段（咸水湖相）优质烃源岩为研究对象，采用“溶剂抽提—皂化—HCl酸解—HF/HCl酸解”的连续处理实验方法，依次得到烃源岩中的游离态有机质、黏土矿物层间吸附有机质、碳酸盐矿物结合有机质和黏土矿物表面化学吸附有机质。结果表明，烃源岩中的矿物结合态有机质约占可溶有机质总量的10%，矿物结合态有机质与游离态有机质表现出显著的地化特征差异：矿物结合态有机质以非烃、沥青质等极性组分为主要组成，饱和烃中轻烃比例较高；矿物结合态有机质可以补充保存具有生源指示意义的分子标志物，如指示Botryococcus braunii生源的两环倍半萜类分子标志物仅在碳酸盐矿物结合有机质中检出，指示古菌生源的角鲨烷仅在HF/HCl酸解有机质中检出；此外，矿物结合态有机质亦可对沉积环境的差异做出分子响应。因此，在对游离态有机质地化特征分析基础上，如能综合分析不同矿物结合态有机质的地化特征，可以获得更为全面的地质分析结果。
- 生物标志化合物 /
- 地球化学特征 /
- 有机质赋存态 /
- 生源组成 /
- 泥质烃源岩 /
- 东营凹陷
Abstract: Organic matter (OM) in argillaceous source rocks occurs in various forms, and it is common for OM be bounded to minerals forming OM-mineral complexes. In order to geochemically characterize OM of different occurrences, some high quality source rocks were sampled from the lower third member (Es₃) and the upper fourth member (Es₄) of the Shahejie Formation in the Dongying Sag, and were subjected to sequential treatments as follows:solvent extraction-saponification-hydrochloric acid hydrolysis-hydrofluoric acid hydrolysis. The free, clay interlayer absorbed, carbonate-bound, and clay surface-bound OM were successively released and GC-MS analyzed. Results indicated that the mineral-bound OM accounted for approximately 10% of the total soluble OM in source rocks, and there exists distinct geochemical differences between the free and mineral-bound OM, with the latter dominated by polar fractions such as nonhydrocarbons and asphaltene. The former comprised higher proportions of light hydrocarbons, and selectively preserved biomarkers indicative of biogenic origin, like the bicyclic sesquiterpenoids in the carbonate-bound OM, indicative of input from Botryococcus braunii, and squalane in the clay surface-bound OM, indicative of input from archaea. The mineral-bound OM was also sensitive to environmental changes, and exhibited molecular differences between fresh Es³ and saline Es⁴ samples. Thus, it was concluded that comprehensive geochemical investigation of the free and mineral-bound OM in argillaceous source rocks could achieve more authentic geological interpretations. Besides, molecular characterization of hydrocarbons of various occurrences could help further elucidate OM preservation mechanisms, as well as better evaluate source rock potential.
- biomarker /
- geochemical feature /
- OM occurrence /
- biogenic interpretation /
- argillaceous source rock /
- Dongying Sag

HTML全文

参考文献(32)

[1]	宋一涛,廖永胜,张守春.半咸-咸水湖相烃源岩中两种赋存状态可溶有机质的测定及其意义[J].科学通报,2005,50(14):1531-1534. SONG Yitao,LIAO Yongsheng,ZHANG Shouchun.Quantification and implications of two types of soluble organic matter from brackish to saline lake source rocks[J].Chinese Science Bulletin,2005,50(14):1490-1494.
[2]	解启来,周中毅,陆明勇.碳酸盐矿物结合有机质:一种重要的成烃物质[J].矿物学报,2000,20(1):59-62. XIE Qilai,ZHOU Zhongyi,LU Mingyong.Organic matter enclosed in carbonate minerals:a kind of important hydrocarbon-producing matter[J].Acta Mineralogica Sinica,2000,20(1):59-62.
[3]	王兆云,程克明.碳酸盐岩中不同赋存状态有机质地球化学特征对比及对成烃的贡献[J].沉积学报,2000,18(4):600-605. WANG Zhaoyun,CHENG Keming.The organic geochemical characteristics comparison and contributors of different existing state organic matter in carbonate rocks[J].Acta Sedimentologica Sinica,2000,18(4):600-605.
[4]	杨燕,雷天柱,邢蓝田,等.不同类型有机黏土中化学结合态有机质生油能力差异性研究[J].石油实验地质,2015,37(4):487-493. YANG Yan,LEI Tianzhu,XING Lantian,et al.Oil generation abilities of chemically bound organic matter in different types of organic clay complexes[J].Petroleum Geology & Experiment,2015,37(4):487-493.
[5]	蔡进功,宋明水,卢龙飞,等.烃源岩中有机黏粒复合体:天然的生烃母质[J].海洋地质与第四纪地质,2013,33(3):123-131. CAI Jingong,SONG Mingshui,LU Longfei,et al.Organo-clay complexes in source rocks:a natural material for hydrocarbon generation[J].Marine Geology & Quaternary Geology,2013,33(3):123-131.
[6]	丁飞,蔡进功,宋明水,等.泥质烃源岩中<2μm黏粒级组分的有机质与比表面关系[J].中国科学(地球科学),2013,43(4):634-641. DING Fei,CAI Jingong,SONG Mingshui,et al.The relationship between organic matter and specific surface area in <2μm clay size fraction of muddy source rock[J].Science China (Earth Sciences),2013,56(8):1343-1349.
[7]	KENNEDY M J,PEVEAR D R,HILL R J.Mineral surface control of organic carbon in black shale[J].Science,2002,295(5555):657-660.
[8]	关平,徐永昌,刘文汇.烃源岩有机质的不同赋存状态及定量估算[J].科学通报,1998,43(14):1556-1559. GUAN Ping,XU Yongchang,LIU Wenhui.Diverse occurrence and quantitative evaluation of organic matter in petroleum source rocks[J].Chinese Science Bulletin,1998,43(14):1556-1559.
[9]	蒋启贵,黎茂稳,钱门辉,等.不同赋存状态页岩油定量表征技术与应用研究[J].石油实验地质,2016,38(6):842-849. JIANG Qigui,LI Maowen,QIAN Menhui,et al.Quantitative characterization of shale oil in different occurrence states and its application[J].Petroleum Geology & Experiment,2016,38(6):842-849.
[10]	MAYER L M,SCHICK L L,HARDY K R,et al.Organic matter in small mesopores in sediments and soils[J].Geochimica et Cosmochimica Acta,2004,68(19):3863-3872.
[11]	ZHU X J,CAI J G,LIU W H,et al.Occurrence of stable and mobile organic matter in the clay-sized fraction of shale:significance for petroleum geology and carbon cycle[J].International Journal of Coal Geology,2016,160-161:1-10.
[12]	RAHMAN H M,KENNEDY M,LÖHR S,et al.Clay-organic association as a control on hydrocarbon generation in shale[J].Organic Geochemistry,2017,105:42-55.
[13]	WU L M,ZHOU C H,KEELING J,et al.Towards an understanding of the role of clay minerals in crude oil formation,migration and accumulation[J].Earth-Science Reviews,2012,115(4):373-386.
[14]	ZEGOUAGH Y,DERENNE S,LARGEAU D,et al.A geochemical investigation of carboxylic acids released via sequential treatments of two surficial sediments from the Changjiang Delta and East China Sea[J].Organic Geochemistry,2000,31(5):375-388.
[15]	钱门辉,蒋启贵,黎茂稳,等.湖相页岩不同赋存状态的可溶有机质定量表征[J].石油实验地质,2017,39(2):278-286. QIAN Menhui,JIANG Qigui,LI Maowen,et al.Quantitative characterization of extractable organic matter in lacustrine shale with different occurrences[J].Petroleum Geology & Experiment,2017,39(2):278-286.
[16]	徐旭辉,郑伦举,马中良.泥页岩中有机质的赋存形态与油气形成[J].石油实验地质,2016,38(4):423-428. XU Xuhui,ZHENG Lunju,MA Zhongliang.Organic matter occurrence and hydrocarbon generation in shale[J].Petroleum Geology & Experiment,2016,38(4):423-428.
[17]	张爽,隋微波.页岩储层有机质分布定量分析及重构模型[J].油气地质与采收率,2016,23(2):22-28. ZHANG Shuang,SUI Weibo.Reconstruction and quantitative analysis methods for organic matter distribution in shale reservoirs[J].Petroleum Geology and Recovery Efficiency,2016,23(2):22-28.
[18]	刘天琳,姜振学,刘伟伟,等.江西修武盆地早寒武世热液活动对有机质富集的影响[J].油气地质与采收率,2018,25(3):68-76. LIU Tianlin,JIANG Zhenxue,LIU Weiwei,et al.Effect of hydrothermal activity on the enrichment of sedimentary organic matter at Early Cambrian in the Xiuwu Basin[J].Petroleum Geology and Recovery Efficiency,2018,25(3):68-76.
[19]	张钰莹,何治亮,高波,等.上扬子区下寒武统富有机质页岩沉积环境及其对有机质含量的影响[J].石油实验地质,2017,39(2):154-161. ZHANG Yuying,HE Zhiliang,GAO Bo,et al.Sedimentary environment of the Lower Cambrian organic-rich shale and its influence on organic content in the Upper Yangtze[J].Petroleum Geology & Experiment,2017,39(2):154-161.
[20]	LI Y L,CAI J G,WANG X J,et al.Smectite-illitization diffe-rence of source rocks developed in saline and fresh water environments and its influence on hydrocarbon generation:a study from the Shahejie Formation,Dongying Depression,China[J].Marine and Petroleum Geology,2017,80:349-357.
[21]	ZHANG L Y,LIU Q,ZHU R F,et al.Source rocks in Mesozoic-Cenozoic continental rift basins,East China:a case from Dong-ying Depression,Bohai Bay Basin[J].Organic Geochemistry,2009,40(2):229-242.
[22]	张林晔,孔祥星,张春荣,等.济阳坳陷下第三系优质烃源岩的发育及其意义[J].地球化学,2003,32(1):35-42. ZHANG Linye,KONG Xiangxing,ZHANG Chunrong,et al.High-quality oil-prone source rocks in Jiyang Depression[J].Geochi-mica,2003,32(1):35-42.
[23]	彼得斯K E,沃尔特斯C C,莫尔多万J M.生物标志化合物指南版.张水昌,李振西,译.北京:石油工业出版社,2011. PETERS K E, WALTERS C C,MOLDOWAN J M.The biomarker guide[M].2nd ed.ZHANG Shuichang,LI Zhenxi,trans.Beijing:Petroleum Industry Press,2011.
[24]	罗佳强,沈忠民.油页岩在渤海湾盆地济阳坳陷下第三系石油资源评价中的意义[J].石油实验地质,2005,27(2):164-168. LUO Jiaqiang,SHEN Zhongmin.Significance of oil shale in the Eogene petroleum resource evaluation of the Jiyang Depression,the Bohaiwan Basin[J].Petroleum Geology & Experiment,2005,27(2):164-168.
[25]	吉利明,宋之光,李剑峰.鄂尔多斯盆地三叠系原油葡萄藻母质输入的生物标志物特征[J].微体古生物学报,2008,25(3):281-290. JI Liming,SONG Zhiguang,LI Jianfeng.Characteristic of biomarkers originating from Botryococcus in the Triassic lacustrine hydrocarbon source rocks and crude oils in the Ordos Basin[J].Acta Micropalaeontologica Sinica,2008,25(3):281-290.
[26]	马中良,郑伦举,赵中熙,等.烃源岩孔隙流体介质对石油初次运移的影响[J].石油实验地质,2015,37(1):97-101. MA Zhongliang,ZHENG Lunju,ZHAO Zhongxi,et al.Effect of fluid medium in source rock porosity on oil primary migration[J].Petroleum Geology & Experiment,2015,37(1):97-101.
[27]	焦养泉,吴立群,何谋春,等.准噶尔盆地南缘芦草沟组烃源岩产状、热演化历史与烃的初次运移过程[J].中国科学(D辑地球科学),2007,37(S1):93-102. JIAO Yangquan,WU Liqun,HE Mouchun,et al.Occurrence,thermal evolution and primary migration processes derived from studies of organic matter in the Lucaogou source rock at the southern margin of the Junggar Basin,NW China[J].Science in China(Series D Earth Sciences),2007,50(S2):114-123.
[28]	宋国奇,张林晔,卢双舫,等.页岩油资源评价技术方法及其应用[J].地学前缘,2013,20(4):221-228. SONG Guoqi,ZHANG Linye,LU Shuangfang,et al.Resource evaluation method for shale oil and its application[J].Earth Science Frontiers,2013,20(4):221-228.
[29]	刘全有,刘文汇,王晓锋,等.不同烃源岩实验评价方法的对比[J].石油实验地质,2007,29(1):88-94. LIU Quanyou,LIU Wenhui,WANG Xiaofeng,et al.Comparisons of geochemical methods for assessment of hydrocarbon-generating potential[J].Petroleum Geology & Experiment,2007,29(1):88-94.
[30]	BU H L,YUAN P,LIU H M,et al.Effects of complexation between organic matter (OM) and clay mineral on OM pyrolysis[J].Geochimica et Cosmochimica Acta,2017,212:1-15.
[31]	蔡郁文,张水昌,何坤,等.烃源岩中无机矿物对有机质生烃的影响[J].石油实验地质,2017,39(2):253-260. CAI Yuwen,ZHANG Shuichang,HE Kun,et al.Effects of inorganic minerals in source rocks on hydrocarbon generation from organic matter[J].Petroleum Geology & Experiment,2017,39(2):253-260.
[32]	王行信,蔡进功,包于进.粘土矿物对有机质生烃的催化作用[J].海相油气地质,2006,11(3):27-38. WANG Xingxin,CAI Jingong,BAO Yujin.Catalysis of clay mineral to organic matter in hydrocarbon genesis[J].Marine Origin Petroleum Geology,2006,11(3):27-38.