西湖凹陷始新统平湖组煤系烃源岩分子地球化学特征

doi:10.7623/syxb201201004

石油学报 ›› 2012, Vol. 33 ›› Issue (1): 32-39.DOI: 10.7623/syxb201201004

西湖凹陷始新统平湖组煤系烃源岩分子地球化学特征

朱扬明　周　洁　顾圣啸　李　颖

浙江大学地球科学系　浙江杭州　310027

收稿日期:2011-05-27 修回日期:2011-09-24 出版日期:2012-01-25 发布日期:2012-03-22
通讯作者: 朱扬明
作者简介:朱扬明，男，1954年11月生，1997年获中国科学院广州地球化学研究所博士学位，现为浙江大学地球科学系教授、博士生导师，主要从事有机地球化学研究与教学工作。
基金资助:
国家高技术研究发展计划（863）项目“海上油气地球化学快速探测技术”（2007AA09Z308）资助。

Molecular geochemistry of Eocene Pinghu Formation coal-bearing source rocks in the Xihu Depression, East China Sea Shelf Basin

ZHU Yangming　ZHOU Jie　GU Shengxiao　LI Ying

Received:2011-05-27 Revised:2011-09-24 Online:2012-01-25 Published:2012-03-22

摘要/Abstract

摘要：

60个饱和烃和芳烃组分的GC－MS分析资料表明，东海盆地西湖凹陷平湖组煤系烃源岩饱和烃中富含源于针叶树脂的二萜烷类生物标志物，甾烷中普遍以C₂₉化合物占优势（>45%），芳烃组分中惹烯、1，7-二甲基菲等陆源标志物含量异常高，这些结果反映该煤系烃源岩的成烃母质主要来源于陆源高等植物。相对于煤及碳质泥岩，暗色泥岩中C₂₇甾烷有较高含量，且正构烷烃呈双峰型分布，说明其有机质生物源中水生生物占有一定比例。该煤系烃源岩的Pr/Ph值大多分布在3.5~8.5，二苯并呋喃类化合物较多，指示这套烃源层主要形成于氧化性较强的湖沼相环境;部分暗色泥岩Pr/Ph值在1.5左右，可能属弱还原—弱氧化的半深湖相沉积。煤及碳质泥岩以高C₂₉甾烷（大于80%）、低伽马蜡烷（与C₃₀藿烷的比值低于0.05）与暗色泥岩形成区别。

关键词: 西湖凹陷, 煤系烃源岩, 生物标志物, 芳烃, 有机质生物源, 东海陆架盆地

Abstract:

GC/MS analytical data of 60 saturated and aromatic fractions revealed that saturated hydrocarbons from Pinghu Formation coal-bearing source rocks in the Xihu Depression of the East China Sea Shelf Basin are characterized by abundant diterpenoid compounds originated from resins of coniferous trees and dominant C₂₉in steranes（>45%）. Moreover, aromatic fractions are abnormally rich in terrigenous biomarkers, such as retene and 1,7-dimethylphenanthrene, indicating a predominant source of organic matter derived from terrigenous higher plants. Compared with coals and carbonaceous mudstones, dark mudstones show a relatively higher content of C₂₇ sterane and a bimodal distribution in n-alkanes, suggesting a certain proportion of aquatic organism contributions in the organic matter source. Source rocks as a whole are believed to be deposited in an oxic limnetic-facies environment, as reflected by high Pr/Ph ratios ranging mostly from 3.5 to 8.5 and abundant dibenzofuranes. However, some dark mudstones show relatively lower Pr/Ph values (round 1.5), suggesting a weakly reducing to suboxic semi-deep lake setting. Coals and carbonaceous mudstones can be distinguished from dark mudstones by a higher relative concentration of C₂₉ sterane (>80%) and lower gammacerane /C₃₀ hopane ratio (<0.05).

Key words: Xihu Depression, coal－bearing source rock, biomarker, aromatic hydrocarbon, biological source of organic matter, East China Sea Shelf Basin

朱扬明　周　洁　顾圣啸　李　颖. 西湖凹陷始新统平湖组煤系烃源岩分子地球化学特征[J]. 石油学报, 2012, 33(1): 32-39.

ZHU Yangming　ZHOU Jie　GU Shengxiao　LI Ying. Molecular geochemistry of Eocene Pinghu Formation coal-bearing source rocks in the Xihu Depression, East China Sea Shelf Basin[J]. Editorial office of ACTA PETROLEI SINICA, 2012, 33(1): 32-39.

参考文献

[1]姜亮.东海陆架盆地油气资源勘探现状及含油气远景[M]∥姜亮.东海陆架盆地油气资源勘探论文集.北京：石油工业出版社，2004：3-8.

Jiang Liang.Exploration status and perspective of petroleum resources in East China Sea shelf basin[M]∥Jiang Liang.Proceedings of petroleum resources exploration in East China Sea shelf basin.Beijing:Petroleum Industry Press,2004：3-8.

[2]叶加仁，顾惠荣，贾健谊．东海西湖凹陷油气地质条件及其勘探潜力[J]．海洋地质与第四纪地质，2008，28(4):111-116．

Ye Jiaren,Gu Huirong,Jia Jianyi.Petroleum geological condition and exploration potential of Xihu depression,East China Sea[J].Marine Geology & Quaternary Geology，2008，28(4):111-116．

[3]刘道燕.东海陆架盆地烃源岩及其烃类特点[M]∥姜亮.东海陆架盆地油气资源勘探论文集.北京：石油工业出版社，2004：181-187.

Liu Daoyan.Characteristics of source rocks and their hydrocarbons in East China Sea continental shelf basin[M]∥Jiang Liang.Proceedings of petroleum resources exploration in East China Sea shelf basin.Beijing:Petroleum Industry Press,2004:181-187.

[4]杨风丽，王敏雪，庄建建，等.西湖凹陷反转构造定量运动学过程及对油气的控制作用[J].石油学报，2010，31（4）：596-601.

Yang Fengli,Wang Minxue,Zhuang Jianjian,et al.Kinematical processes of inversion structure and its contribution to hydrocarbon accumulation in Xihu Depression of East China Sea Basin[J].Acta Petrolei Sinica,2010,31(4):596-601.

[5]贾健谊，顾惠荣.东海西湖凹陷含油气系统与油气资源评价[M].北京：地质出版社,2002：41.

Jia Jianyi,Gu Huirong.Oil & gas bearing system and petroleum resources evaluation of Xihu depression,East China Sea[M].Beijing: Geological Publishing House,2002:41.

[6]姜亮.东海陆架盆地油气资源勘探现状及油气远景[J].中国海上油气（地质），2003，17（1）：1-5.

Jiang Liang.Exploration status and perspective of petroleum resources in East China Sea shelf basin[J].China Offshore Oil and Gas (Geology),2003,17(1):1-5.

[7]陈斯忠.东海盆地主要地质特点及找气方向[M]∥姜亮.东海陆架盆地油气资源勘探论文集.北京：石油工业出版社,2004:9-18.

Chen Sizhong.Main geological characteristics and gas exploration directions in East China Sea basin[M]∥Jiang Liang.Proceedings of petroleum resources exploration in East China Sea shelf basin.Beijing:Petroleum Industry Press,2004:9-18.

[8]邓运华.试论中国近海两个坳陷带油气地质差异性[J].石油学报.2009,30(1):1-8.

Deng Yunhua.Analysis on differences of petroleum type and geological conditions between two depression belts in China offshore[J].Acta Petrolei Sinica,2009,30(1):1-8.

[9]傅宁.东海盆地西湖凹陷煤系烃源岩及凝析油中的二萜化合物[J].中国海上油气（地质），1994，8（1）：21-28.

Fu Ning.Diterpenoid compounds in coal measures and condensates in Xihu sag of East China Sea basin[J].China Offshore Oil and Gas (Geology),1994,8(1):21-28.

[10]Noble R A,Alexander R,Kagi R I，et al.Identification of some diterpenoid hydrocarbons in petroleum[J].Organic Geochemistry, 1986,10:825-829.

[11]Livsey A,Douglas A G,Connan J.Diterpenoid hydrocarbons in sediments from an offshore(Labrador)well[J].Organic Geochemistry,1984, 6: 73-81.

[12]Noble R A,Alexander R,Kagi R I,et al.Tetracyclic diterpenoid hydrocarbons in some Australian coals,sediments and crude oils[J].Geochimica et Cosmochimica Acta,1985,49(10):2141-2147.

[13]Otto A,Walther H,Puttmann W.Sesqui- and diterpenoid biomarkers preserved in Taxodium-rich Oligocene oxbow lake clays,Weisselster basin,Germany[J].Organic Geochemistry,1997,26(1/2):105-115.

[14]姜亮.东海陆架盆地第三系煤系烃源岩油气生成与聚集[M].北京：石油工业出版社,2002:37-41.

Jiang Liang.Study on hydrocarbon generating,migration and accumulation of the Tertiary source rocks in the East China Sea Basin[M].Beijing:Petroleum Industry Press,2002:37-41.

[15]Damste J S S,Kenig F,Koopmans M P,et al.Evidence for gammacerane as an indicator of water column stratification[J].Geochimica et Cosmochimica Acta,1995,59(9):1895-1900.

[16]Puttmann W,Villar H.Occurrence and geochemical significance of 1,2,5,6-tetranmethylnaphalene[J].Geochimica et Cosmochimica Acta,1987,51(11):3023-3029.

[17]Strachan M G,Alexander R,Kagi R I.Trimethylnaphthalenes in crude oils and sediments:Effects of source and maturity[J].Geochimica et Cosmochimica Acta,1988,52(5):1255-1264.

[18]van Aarssen B G K,Alexander R,Kagi R I.Higher plant biomarkers reflect palaeovegetation changes during Jurassic times[J].Geochimica et Cosmochimica Acta,2000,64(8):1417-1424.

[19]Heppenheimer H,Steffens K,Puttmann W,et al.Comparison of resinite-related aromatic biomarker distributions in Cretaceous-Tertiary coals from Canada and Germany[J].Organic Geochemistry,1992,18(3):273-287.

[20]Romero-Sarmiento M-F,Riboulleau A,Vecoli M,et al.Occurrence of retene in Upper Silurian-Lower Devonian sediments from North Africa:Origin and implications[J].Organic Geochemistry,2010,41(3):302-306.

[21]Simoneit B R T,Grimalt J O,Wang T G,et al.Cyclic terpenoids of contemporary resinous plant detritus and of fossil woods, ambers and coals[J].Organic Geochemistry,1986,10:877-889.

[22]Sephton M A,Looy C V,Veefkind R J,et al.Cyclic diaryl ethers in a Late Permian sediment[J].Organic Geochemistry,1999,30(4):267-273.

[23]Radke M,Vriend S P,Ramanampisoa L R.Alkyldibenzofuranes in terrestrial rocks:Influence of organic facies and maturation[J].Geochimica et Cosmochimica Acta,2000,64(2):275-286.

[24]Asif M,Alexander R,Fazeelat T,et al.Sedimentary processes for the geosynthesis of heterocyclic aromatic hydrocarbons and fluorenes by surface reactions[J].Organic Geochemistry,2010,41(5):522-530.

[25]郭小文，何生，石万忠.珠江口盆地番禺低隆起轻质原油芳烃地球化学特征[J].石油学报，2008，29（1）：52-57.

Guo Xiaowen,He Sheng,Shi Wanzhong.Aromatic geochemistry characteristics of light oils from Panyu Lower Uplift in Pearl River Mouth Basin[J].Acta Petrolei Sinica,2008,29(1):52-57.

西湖凹陷始新统平湖组煤系烃源岩分子地球化学特征

Molecular geochemistry of Eocene Pinghu Formation coal-bearing source rocks in the Xihu Depression, East China Sea Shelf Basin

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