泥质烃源岩中粘土矿物结合有机质热演化的红外发射光谱研究

卢龙飞; 蔡进功; 刘文汇; 腾格尔; 胡文瑄

doi:10.11781/sysydz201202215

泥质烃源岩中粘土矿物结合有机质热演化的红外发射光谱研究

doi: 10.11781/sysydz201202215

卢龙飞^1,2,3,
蔡进功⁴,
刘文汇^2,3,
腾格尔^2,3,
胡文瑄¹

1.
南京大学地球科学学院, 南京 210093
2. 中国石油化工集团公司油气成藏重点实验室, 江苏无锡 214126
3. 中国石油化工股份有限公司石油勘探开发研究院无锡石油地质研究所, 江苏无锡 214126
4. 同济大学海洋与地球科学学院, 上海 200092

基金项目: 中国自然科学基金(40872089);国家油气重大专项(2008ZX05006-003);中国博士后科学基金(20100480496);国家留学基金资助

详细信息

作者简介:
卢龙飞(1977- ),男,在站博士后,从事油气地球化学研究.E-mail:lulf.syky@sinopec.com.

中图分类号: TE122.1^＋1
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出版历程
- 收稿日期: 2011-07-25
- 修回日期: 2012-02-27
- 刊出日期: 2012-03-28

Infra-red emission spectroscopy study of thermal evolution of organic matter bound by clay minerals in muddy hydrocarbon source rocks

1.
School of Earth Science, Nanjing University, Nanjing, Jiangsu 210093, China
2. SINOPEC Key Laboratory of Petroleum Accumulation Mechanisms, Wuxi, Jiangsu 214126, China
3. Wuxi Research Institute of Petroleum Geology, SINOPEC, Wuxi, Jiangsu 214126, China
4. State Key Laboratory of Marine Geology, Tongji University, Shanghai 200092, China

摘要

摘要: 选取济阳坳陷古近系渐新统沙河街组泥质烃源岩,进行小于2μm的粘土组分提取,运用红外发射光谱技术研究粘土矿物结合有机质的热演化过程和有机-粘土相互作用对有机质热演化过程的影响.结果显示,代表脂肪链结构的甲基、亚甲基振动吸收峰随着温度的升高,强度逐渐降低,烷基链由于受到粘土保护而晚于支链分解;代表芳香结构的芳环的振动吸收峰强度变化较为复杂,798,779,750cm^-1等峰随温度升高而减弱,而1600cm^-1和3030cm^-1峰则在200℃左右才出现并不断增强,随后慢慢减弱,且芳香度指数一直增加,显示出明显的芳构化过程.同时,粘土矿物层间水合阳离子通过"水桥"机制将含羧基的有机分子结合起来,对其演化有抑制作用.红外发射光谱研究揭示出粘土矿物结合的有机质主要通过脂肪族化合物的芳构化转化实现生烃的演化特征,是烃源岩热演化研究的有效手段.
- 红外发射光谱 /
- 有机质 /
- 粘土矿物 /
- 热演化 /
- 烃源岩 /
- 古近系 /
- 济阳坳陷
Abstract: To examine the thermal evolution of and the influence of organo-clay interaction on organic matter bound by clay minerals in muddy source rocks,we studied the <2μm particle-size fractions extracted from hydrocarbon source rocks in Neocene,Jiyang Depression,eastern China,using infra-red emission spectroscopy(IES).Results show that the vibration peaks of methylene and methyl representing aliphatic chain decrease with the increasing of temperature,and lateral chains are easily to subject to oxidation than main chains.Intensities of vibration peaks attributed to aromatic compounds vary respectively,some peaks such as 798,779 and 750cm^-1 decrease with the increasing of temperature,but the reverse to other peaks.Vibration peaks such as 1 600 and 3 030cm^-1 do not occur until 250℃ and increase first and decrease subsequently,while aromaticity factor increases progressively,showing a clear aromatization process.Also,carboxylic acids interact with interlayer hydrated actions of clay minerals through hydrogen bond,making carboxylic acids much stabile and thus suppressing their thermal evolution.IES study reveals that organic matter bound by clay minerals generates hydrocarbon mainly through aromatization of aliphatic compound,which is a quite useful method for source rocks thermal evolution study.
- infra-red emission spectroscopy (IES) /
- organic matter /
- clay minerals /
- thermal evolution /
- hydrocarbon source rocks /
- Paleocene /
- Jiyang Depression

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参考文献(41)

[1]	苗建宇,祝总祺,刘文荣,等.泥质岩有机质的赋存状态及其对泥质岩封盖能力的影响[J].沉积学报,1999,17(3):478-481.
[2]	陆现彩,胡文瑄,张林晔,等.烃源岩中可溶有机质与粘土矿物结合关系[J].地质科学,1999,34(1):69-77.
[3]	于炳松,Dong Hailiang,陈建强,等.塔里木盆地下寒武统底部高熟烃源岩中有机质的赋存状态[J].地球科学——中国地质大学学报,2004,29(2):198-202.
[4]	刘传联,舒小辛,刘志伟.济阳坳陷下第三系湖相生油岩的微观特征[J].沉积学报,2001,19(2):293-298.
[5]	Bianchi T S,Galler J J,Allison M A.Hydrodynamic sorting and transport of terrestrially derived organic carbon in sediments of the Mississippi and Atchafalaya Rivers[J].Estuarine Coastal and Shelf Science,2007,73(1-2):211-222.
[6]	Keil R G,Hedges J I.Sorption of organic matter to mineral surfaces and the preservation of organic matter in coastal marine se-diments[J].Chemical Geology,1993,107(3-4):385-388.
[7]	Arnarson T S,Keil R G.Organic-mineral interactions in marine sediments studied using density fractionation and X-ray photo-electron spectroscopy[J].Organic Geochemistry,2001,32(12):1401-1415.
[8]	Bergamaschi B A,Tsamakis E,Keil R G,et al.The effect of grain size and surface area on organic matter,lignin and carbohydrate concentration,and molecular compositions in Peru Margin sediments[J].Geochimica et Cosmochimica Acta,1997,61(6):1247-1260.
[9]	Mayer L M.Extent of coverage of mineral surfaces by organic matter in marine sediments[J].Geochimica et Cosmochimica Acta,1999,63(2):207-215.
[10]	Curry K J,Bennett R H,Mayer L M,et al.Direct visualization of clay microfabric signatures driving organic matter preservation in fine-grained sediment[J].Geochimica et Cosmochimica Acta,2007,71(7):1709-1720.
[11]	Salmon V,Derenne S,Largeau C,et al.Kerogen chemical structure and source organisms in a Cenomanian organic-rich black shale(Central Italy)-Indications for an important role of the "sorptive protection"pathway[J].Organic Geochemistry,1997,27(7-8):423-438.
[12]	Salmon V,Derenne S,Lallier-Verges E.Protection of organic matter by mineral matrix in a Cenomanian black shale[J].Organic Geochemistry,2000,31(5):463-474.
[13]	Kennedy M J,Pevear D R,Hill R H.Mineral surface control of organic carbon in black shale[J].Science,2002,295(2):657-660.
[14]	蔡进功.泥质沉积物和泥岩中有机粘土复合体[M].北京:科学出版社,2004:15-175.
[15]	蔡进功,包于进,杨守业,等.泥质沉积物和泥岩中有机质的赋存形式与富集机制[J].中国科学D辑地球科学,2007,37(2):244-253.
[16]	蔡进功,卢龙飞,宋明水,等.有机粘土复合体抽提特征及其石油地质意义[J].石油与天然气地质,2010,31(3):300-308.
[17]	张永刚,蔡进功.泥质烃源岩中有机质富集机制[M].北京:石油工业出版社,2007.
[18]	卢龙飞,蔡进功,雷天柱,等.东海表层沉积物粘土粒级中多态脂肪酸组成与地球化学特征[J].地球化学,2011,40(2):188-198.
[19]	Schulten H R,Leinweber P.Characterization of organic matter in an interlayer clay-organic complex from soil by pyrolysis methylation-mass spectrometry[J].Geoderma,1999,69(1-2):105-118.
[20]	Williams D H,Fleming I.有机化学中的光谱方法[M].王剑波,等译.北京:北京大学出版社,2001:23-44.
[21]	常建华,董琦功.波谱原理及解析[M].北京:科学出版社,2001:58-116.
[22]	Yariv S.Thermo-IR-spectroscopy analysis of the interactions between organic pollutants and clay minerals[J].Thermochimica,1996,274(1):1-35.
[23]	Madejova J.FTIR techniques in clay mineral studies[J].Vibrational Spectroscopy,2003,31(1):1-10.
[24]	Madejova J,Janek M,Komadel P,et al.FTIR analyses of water in MX-80 bentonite compacted from high salinary salt solution systems[J].Applied Clay Science,2002,20(6):255-271.
[25]	Demaison J,Sarka K,Cohen E A.Spectroscopy from space[M].The Netherland:Kluwer Academic Publishers,2001:171-186.
[26]	Nolt G,Ade P A R,Alboni F,et al.Stratospheric HBr concentration profile obtained from far-infrared emission spectroscopy[J].Geophysical Research Letters,1997,24(3):281-284.
[27]	Yariv S,Cross H.Organic-clay complexes and interaction[M].New York:Marcel Dekker,2002.
[28]	Parker R W,Frost R L.The application of drift spectroscopy to the multicomponent analysis of organic chemicals adsorbed on montmorillonite[J].Clays and Clay Minerals,1996,44(1):32-40.
[29]	李东涛,李文,李保庆.褐煤中水分的原位漫反射红外光谱研究[J].高等学校化学学报,2002,23(12):2325-2328.
[30]	李灿,王开立,辛勤,等.傅里叶变换红外发射光谱法研究金属氧化物催化剂[J].物理化学学报,1992,8(1):64-69.
[31]	董庆年,靳国强,陈学艺.红外发射光谱法用于煤化学研究[J].燃料化学学报,2000,28(2):138-141.
[32]	Kim H S,Wagner D R,Saykally R J.Single photon infrared emission spectroscopy of the gas phase pyrene cation:support for a polycyclic aromatic hydrocarbon origin of the unidentified infrared emission bands[J].Physical Riview,2001,85(25):5691-5694.
[33]	卢龙飞,蔡进功,刘文汇,等.泥质烃源岩中蒙皂石与有机质的水桥结合作用:来自原位漫反射红外光谱的证据[J].石油与天然气地质,2011,32(1):47-55.
[34]	Ibarra J,Munoz E,Moliner R.FTIR study of the evolution of coal structure during the coalification processs[J].Fuel,1996,24(6-7):725-735.
[35]	Chorover J,Amistadi M K.Reaction of forest floor organic matter at goethite,birnessite and smectite surfaces[J].Geochimica et Cosmochimica Acta,2001,65(1):95-109.
[36]	Vassallo A M,Liu Y L,Pang L S K,et al.Infrared spectroscopy of coal maceral concentrates at elevated temperatures[J].Fuel,1991,70(5):635-639.
[37]	Zeng Yishan,Wu Chaodong.Raman and infrared spectroscopic study of kerogen treated at elevated temperatures and pre-ssures[J].Fuel,2007,86(7-8):1192-1200.
[38]	Stuart B H.Infrared spectroscopy:fundamentals and applicati-ons[M].New York:Wiley,2004:71-93.
[39]	Grim R E.Mineralogy of Clay[M].New York:McGraw-Hill Book Co.,1953:15-175.
[40]	Lu Longfei,Cai Jingong,Frost R L.Desorption of benzoic and stearic adsorbed upon montmorillonites:a thermogravimetric study[J].Journal of Thermal Analysis and Calorimetry,2010,99(2):377-384.
[41]	Harrison W E.Thermally induced diagenesis of aliplcatic gatty acids in holocene[J].AAPG Bulletin,1976,60(2):452-455.