Acta Petrolei Sinica ›› 2019, Vol. 40 ›› Issue (2): 176-181.DOI: 10.7623/syxb201902005

Previous Articles     Next Articles

1H-pyrrole-2,5-diones (maleimides):the novel biomarkers in petroleum geochemistry

Wang Guangli1, Sebastian Naeher1, Li Jingyi1, Shi Shengbao1   

  1. 1. State Key Laboratory of Petroleum Resources and Prospecting, Beijing 102249, China;
    College of Geosciences, China University of Petroleum, Beijing 102249, China;
    2. GNS Science, 1 Fairway Drive, Avalon 5010, PO Box 30-368, Lower Hutt 5040, New Zealand
  • Received:2018-05-03 Revised:2018-12-09 Online:2019-02-25 Published:2019-03-05

1H-吡咯-2,5-二酮(马来酰亚胺):油气地球化学中的新生物标志物

王广利1, 李婧仪1, 师生宝1, 常睿1   

  1. 1. 油气资源与探测国家重点实验室 中国石油大学(北京)地球科学学院 北京 102249;
    2. GNS Science Lower Hutt PO Box 30-368
  • 通讯作者: 王广利,男,1973年12月生,1996年获山东工业大学学士学位,2006年获中国石油大学(北京)博士学位,现为中国石油大学(北京)副研究员,主要从事分子有机地球化学、油气形成与保存机制等领域的研究。Email:sydxwgl@cup.edu.cn
  • 作者简介:王广利,男,1973年12月生,1996年获山东工业大学学士学位,2006年获中国石油大学(北京)博士学位,现为中国石油大学(北京)副研究员,主要从事分子有机地球化学、油气形成与保存机制等领域的研究。Email:sydxwgl@cup.edu.cn
  • 基金资助:

    中国—新西兰国际交流基金项目(17-GNS-002-CHN)和山东省沉积成矿作用与沉积矿产重点实验室开放基金项目(DMSM2017057)资助

Abstract:

1H-pyrrole-2,5-diones, or maleimides, are degradation products or derivatives from tetrapyrrole pigments found in petroleum, soils, sediments and sedimentary rocks; among them, 2-methyl-3-n-propyl (Me,n-Pr) and 2-methyl-3-isobutyl (Me,i-Bu) maleimide are mainly sourced from the bacteriochlorophylls of green phototrophic sulfur bacteria (Chlorobiaceae). In this study, the maleimides fractions were extracted from crude oil with mixed sources and geneses, and the gas chromatography-mass spectrometry (GC-MS) and comprehensive two-dimensional gas chromatography-time-of-flight mass spectrometry (GC×GC-ToFMS) were used for analysis and identification. The results show that three different sets of maleimides occur in China’s lacustrine oil, and there are significant differences in the maleimide components of mixed-genesis crude oil. Abundant Me,n-Pr and Me,i-Bu maleimides are mainly distributed in the crude oil derived from the upper source rocks in Member 4 of Shahejie Formation, Bohai Bay Basin with saline-water permanent stratification, while both are undeveloped in the crude oil under brackish or fresh water conditions. Meanwhile, Me,n-Pr and Me,i-Bu maleimides can be used to identify the occurrence of light-permeable stagnant water zone for oil-source correlations. Thus, maleimides are expected to become a new kind of biomarkers in hydrocarbon geochemistry.

Key words: 1H-pyrrole-2,5-dione, maleimide, Chlorobiaceae, biomarker, depositional environment, oil-source correlation

摘要:

1H-吡咯-2,5-二酮(马来酰亚胺)是发现于石油以及土壤、沉积物和沉积岩中四吡咯色素的降解产物或衍生物,其中2-甲基-3-正丙基(Me,n-Pr)和2-甲基-3-异丁基(Me,i-Bu)马来酰亚胺主要来源于光合硫细菌体内的细菌叶绿素。将不同来源和成因的石油中分离出马来酰亚胺组分,并运用气相色谱-质谱(GC-MS)和全二维气相色谱-飞行时间质谱(GC×GC-ToFMS)进行分析鉴定,结果表明,在中国湖相原油中发育3类不同系列的马来酰亚胺,且不同成因的原油中马来酰亚胺组成存在显著差别。丰富的Me,n-Pr和Me,i-Bu马来酰亚胺主要分布于咸化、水体存在永久性分层的渤海湾盆地沙河街组四段上部烃源岩生成的原油中,在微咸水或淡水条件下形成的原油中二者均不发育。同时,Me,n-Pr和Me,i-Bu马来酰亚胺可以有效地应用于判识透光滞水带(PZE)的出现和进行油源对比。马来酰亚胺有望成为油气地球化学中一类新的非烃类生物标志物。

关键词: 1H-吡咯-2, 5-二酮, 马来酰亚胺, 光合绿硫菌, 生物标志物, 沉积环境, 油源对比

CLC Number: