原油易挥发组分对后期裂解中金刚烷演化特征的影响
查看参考文献18篇
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文摘
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通过模拟实验, 人们已经对原油及其族组分中高碳数烃类在高温裂解过程中对金刚烷类化合物生成的贡献有较深的了解, 但是缺乏对轻质组分的关注, 忽略了它们对金刚烷类化合物的生成以及参数应用方面可能存在的影响. 本文利用塔里木盆地HD23井正常原油挥发前后油样的裂解动力学模拟实验, 结合金刚烷类化合物的定量分析来探讨原油中易挥发组分是否对金刚烷类化合物的生成和成熟度参数存在显著影响. 结果表明, 原油中易挥发的轻烃组分(≤nC_(12))对单金刚烷类化合物的生成具有明显的贡献, 且主要发生在原油裂解的早期(EasyRo<1.0%), 同时影响单金刚烷成熟度参数的变化特征; 但对双金刚烷类化合物及其成熟度参数则没有明显的影响. 因此, 实际地质过程中可能造成原油中轻烃组分损失的次生改造作用(如运移、气洗和生物降解作用等), 可能会对原油后期裂解的单金刚烷类化合物的生成产生影响, 从而影响单金刚烷类指标的实际应用. |
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来源
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中国科学. 地球科学
,2015,45(10):1448-1456 【核心库】
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DOI
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10.1007/s11430-015-5163-x
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关键词
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原油
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易挥发组分
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高温裂解
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金刚烷
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演化特征
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地址
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1.
中国石油勘探开发研究院, 有机地球化学国家重点实验室, 北京, 100083
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中国科学院广州地球化学研究所, 有机地球化学国家重点实验室, 广州, 510640
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广州海洋地质调查局, 广州, 510760
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中国石油勘探开发研究院, 北京, 100083
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语种
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中文 |
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文献类型
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研究性论文 |
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ISSN
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1674-7240 |
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学科
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地质学 |
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基金
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国家自然科学基金项目
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国家重大科技专项
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中国博士后科学基金
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文献收藏号
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CSCD:5549323
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