| 凝析油中金刚烷类和硫代金刚烷类化合物同步检测方法及地质意义——以塔里木盆地塔中地区凝析油为例 |
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| 引用本文： | 房忱琛,翟佳,胡国艺,龚德瑜.凝析油中金刚烷类和硫代金刚烷类化合物同步检测方法及地质意义——以塔里木盆地塔中地区凝析油为例[J].石油实验地质,2021,43(5):906-914. |
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| 作者姓名： | 房忱琛 翟佳 胡国艺 龚德瑜 |
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| 作者单位： | 1. 中国石油天然气股份有限公司 勘探开发研究院, 北京 100083; |
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| 基金项目： | 国家自然科学基金（41503044，41802177）资助。 |
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| 摘 要： | 原油中的金刚烷类和硫代金刚烷类化合物具有相似的类金刚石笼状结构，可以反映地质过程中的热裂解作用和热化学硫酸盐还原反应（TSR）作用，因此两者的同步检出，不仅可以提高样品的分析测试效率和硫代金刚烷类化合物的定量结果准确性，还可以为样品提供更加可靠和广泛的地球化学分析解释。该文利用气相色谱-三重四级杆串联质谱仪（GC-MS-MS），确定了目标化合物的母离子和子离子、扫描时间、碰撞能等仪器参数，建立了塔里木盆地塔中地区凝析油中金刚烷类化合物和硫代金刚烷类化合物的同步定量检测方法，并通过定量检测结果发现，塔中地区金刚烷类化合物的含量虽有差异，但是成熟度相近，都处于过成熟阶段，且部分样品曾经历过TSR作用。
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| 关 键 词： | 金刚烷类化合物 硫代金刚烷类化合物 成熟度 热化学硫酸盐还原反应(TSR) 塔中地区 塔里木盆地 |
| 收稿时间： | 2021-07-12 |
A simultaneous determination method for diamondoids and thiadiamondoids in condensate oil and its geological significance: taking condensate oil from central Tarim Basin as an example |
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| Affiliation: | 1. Research Institute of Petroleum Exploration & Development, PetroChina, Beijing 100083, China;2. State Key Laboratory of Coal Resources and Safe Mining, China University of Mining and Technology(Beijing), Beijing 100083, China;3. College of Geoscience and Surveying Engineering, China University of Mining and Technology(Beijing), Beijing 100083, China |
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| Abstract: | Diamondoids and thiadiamondoids in crude oil samples have the similar diamond-like cage structures, which can reflect the thermal cracking and thermochemical sulfate reduction(TSR) effect during geological processes. Therefore, the simultaneous monitoring of diamondoids and thiadiamondoids cannot only improve the efficiency of sample analysis and the accuracy of quantitative results of thiadiamondoids, but also provide more reliable and extensive geochemical interpretation for the samples. In this paper, a simultaneous quantitative detection method of diamondoids and thiadiamondoids was proposed by the means of gas chromatography-triple quadrupole mass spectrometer (GC-MS-MS). By determining the parameters of precursor and product ions, scanning time and collision energy of the target compound, a simultaneous quantitative detection method was established for diamondoids and thiadiamondoids in condensate from the central Tarim Basin. Results showed that despite the contents of diamondoids of oils from the central Tarim Basin were different, the maturity degree on the other hand, were comparable as over mature, and some samples have experienced TSR. |
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