烃源岩前处理过程对金刚烷类化合物定量分析的影响  

Effect of source rock pretreatment on diamondoid quantitative analysis

作　　者：翟佳 房忱琛 胡国艺[2] 黄凌 刘红缨[1] 魏彩云[2] 许雷 Zhai Jia;Fang Chen-chen;Hu Guo-yi;Huang Ling;Liu Hong-ying;Wei Cai-yun;Xu Lei(China University of Mining&Technology,Beijing100083,China;PetroChina Research Institute of Petroleum Exploration&Development,Beijing100083,China)

机构地区：[1]中国矿业大学(北京),北京100083 [2]中国石油天然气股份有限公司勘探开发研究院,北京100083

出　　处：《天然气地球科学》2019年第2期295-304,共10页Natural Gas Geoscience

基　　金：国家自然科学基金"生物降解作用对原油中金刚烷类化合物组成的影响"(编号:41503044);国家科技重大专项"高过成熟阶段天然气生成机理与源灶有效性评价"(编号:2016ZX05007-001)联合资助

摘　　要：研究了不同溶剂(正戊烷、二氯甲烷)和浓缩过程对煤、海相页岩中金刚烷类化合物定量结果的影响。实验结果表明,不同溶剂的抽提会对样品中金刚烷类化合物的定量结果造成明显差异。二氯甲烷比正戊烷抽提得到的金刚烷类化合物含量明显要高,差异可达3～37倍。而且,样品中金刚烷类化合物含量越高,抽提溶剂造成的差异越大。其中,低碳数金刚烷类化合物在2种溶剂中的含量差异较大,高碳数金刚烷类化合物的含量差异较小,含量基本接近。另外,溶剂的选择对金刚烷参数影响比较明显。同时,实验结果还表明,浓缩过程对金刚烷类化合物定量结果的影响不明显。The paper studied the effects of different solvents(n-pentane,dichloromethane)and concentration process on the quantitative results of diamondoids in coal and marine shale.The experimental results show that the extraction of different solvents will make a significant difference in the quantitative results of diamondoids in the sample.The content of diamondoids extracted by dichloromethane is 3 to 37 times that of n-pentane extraction.Moreover,the higher the content of diamondoids in the sample,the greater the difference caused by the extraction solvent.The content of lower diamondoids in the two solvents differs greatly,and the content of higher diamondoids is substantially similar.In addition,the choice of solvent has a significant effect on the diamondoid parameters.The experimental results also show that the concentration process has no obvious effect on the quantitative results of diamondoids.

关 键 词：金刚烷类化合物 抽提 浓缩 定量分析 

分 类 号：TE31[石油与天然气工程—油气田开发工程]