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| 1 | 傅里叶变换离子回旋共振质谱对中国高硫原油的分子组成表征显示文摘常规GC/MS只能分析饱和烃和芳烃馏分中具有挥发性的小分子化合物,以此技术研究原油中含硫杂原子的分布具有明显的局限性.本文采用具有超高分辨率的傅里叶变换离子回旋共振质谱(FT-ICR MS)技术,从分子层次研究中国下第三系典型盐湖相膏盐沉积盆地原油中的硫化物,从分子中杂原子类型、碳原子数和缩合度(以等效双键DBE表示)等方面整体描述有机硫化合物的分子组成.有机硫化合物的杂原子类型十分丰富,鉴定出S1,S2,S3,OS,OS2,O2S,O2S2,NS和NOS等类型(S1表示化合物分子中的杂原子仅含有1个硫原子的杂原子化合物).江汉原油中高丰度有机硫化合物以硫醚类为主,主要是一环环硫醚类化合物;晋县凹陷高硫重质稠油中有机硫化合物主要是苯并噻吩和二苯并噻吩类化合物,缩合度和碳数范围大大增加.晋县凹陷和江汉盆地虽然同属下第三系盐湖相膏盐盆地,发育碳酸盐-蒸发岩沉积,但在不同微生物作用下硫的化学成岩演化明显不同,导致具有明显不同的生物标志物组合特征、有机硫化合物分布乃至不同的未熟油-低熟油生油机理. | 卢鸿 史权 马庆林 时阳 刘金钟 盛国英 彭平安 | 2014 | 中国科学:地球科学2014，44，1： | 11 |
| 2 | 晋县凹陷高硫重质稠油中含硫甾烷的检出及其形成机制探讨显示文摘晋县凹陷高硫重质稠油饱和烃馏分中检出了异常丰富的含硫甾烷化合物.从结构上看,这些含硫甾烷是以噻吩形式并入到甾核D环上或者结合到侧链C-22位上的.结合文献中甲硫基甾烷和分子内含硫甾烷的报道,提出了含硫甾烷的四种形成机制和富硫沉积中甾类的成岩演化途径.甾类侧链上的烯键同时存在氢化作用和硫化作用两种过程:H2S或HS?的非生物化学氢化作用形成长链甾烷;硫化过程成功形成侧链含硫甾烷;环化或者硫化的不成功,则形成短链甾烷.这种侧链氢化/硫化机制,为晋县凹陷原油和烃源岩中高丰度短链甾烷(峰高超过规则甾烷和植烷以及正构烷烃)的发育提供了可能的成因线索. | 卢鸿 王庆涛 江林香 张辉 刘金钟 盛国英 彭平安 | 2014 | 中国科学:地球科学2014，44，5： | 1 |
| 3 | Identification and formation of sulfur-containing steroids in sulfur-rich heavy oils in the Jinxian Sag,Bohai Bay Basin,North China显示文摘High abundant sulfur-containing steroids were identified and detected in saturate hydrocarbon fractions of heavy oil with a high sulfur content in the Jinxian Sag,Bohai Bay Basin,North China.These sulfur-containing steroids were structurally merged into the D-ring of steroid nucleus with thiophene ring and/or combined into the C-22 in the side-chain.Based on the previous reports of sulfur-containing steroids with methylthio-steroids and intra-molecular form,four formation mechanisms of sulfur-containing steroids and diagenetic pathway of steroids under S-rich conditions were proposed in this paper according to the double bond positions in the sterene compounds.Hydrogenation and sulfurization both occurred in the diagenetic processes of olefinic bond in the side-chain of steroids:abiogenic chemical hydrogenation of H2S and HS-leads to the formation of regular steranes;a successful sulfurization process leads to the formation of the side-chain sulfur-containing steroids whereas unsuccessful cyclization and/or sulfurization result in the generation of short-chain steranes.This kind of mechanism of hydrogenation/sulfurization of side-chain olefinic bond provides a potential genesis clue for the occurrence of high abundance of short-chain steranes(higher than the common regular steroids,phytane and n-alkanes)in S-rich heavy oils and source rocks in the Jinxian Sag,Bohai Bay Basin,North China. | LU Hong WANG QingTao JIANG LinXiang ZHANG Hui LIU JinZhong SHENG GuoYing PENG PingAn | 2013 | Science China Earth Sciences2013，56，11： | 1 |
| 4 | Molecular characterization of sulfur compounds in some special sulfur-rich Chinese crude oils by FT-ICR MS显示文摘Routine GC/MS analysis may apply to the volatilized Low-Molecular-Weight compounds in saturate and aromatic hydrocarbon fractions;thus,relative studies using this technique inevitably bring about some limitations on distribution of miscellaneous sulfur atom.In this article,Fourier Transform Ion Cyclotron Resonance Mass Spectrometry(FT-ICR MS)with high resolution is employed to investigate the distribution of organic sulfur compounds(OSCs)in the crude oil typically derived from the Eogene carbonate-evaporite sediments with further chemical compositional characterization in molecular level by miscellaneous atomic type,carbon number,and double bond equivalent(DBE).A variety of miscellaneous atomic types with S1,S2,S3,OS,OS2,O2S,O2S2,NS,and NOS etc.(S1 means those OSCs with one sulfur atom in a molecule)were identified in OSCs in these oil samples.High levels of alkyl thioether series compounds with one ring structure were presented mainly in the crude oil in the Jianghan Basin whereas high amounts of benzothiophene,dibenzothiophene etc.compounds with higher values in DBE and carbon number range occurred in the sulfur-rich heavy oil in the Jinxian Sag.Although carbonate-evaporite sediments deposited in the saline lacustrine facies in the Eogene basin both occurred in the Jinxian Sag and Jianghan Basin,obviously,they possess different chemical diagenetic pathway of sulfur under various microbial reactions,leading to diverse distributional characteristics on biomarkers,OSCs,and even different hydrocarbon generation mechanism of immature crude oil. | LU Hong SHI Quan MA QingLin SHI Yang LIU JinZhong SHENG GuoYing PENG PingAn | 2014 | Science China Earth Sciences2014，57，6： | 1 |
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