| Quantification and implications of two types of soluble organic matter from brackish to saline lake source rocks |
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| 作者姓名： | SONG Yitao LIAO Yongsheng ZHANG Shouchun |
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| 作者单位： | [1]Geological Scientific Research Institute of Shengli Oilfield, Dongying257015, China |
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| 基金项目： | This study was supported by Scientific and Technological Research Items of China National Petroleum Corporation （Grant No. 960007） and Sinopec Corporation （Grant No. 200198）. |
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| 摘 要： | Two types of soluble organic matter, the free and adsorbed, were obtained and quantified from the brackish to saline lake source rocks. The adsorbed type was extracted with chloroform, solvent mixtures of methanol：acetone：chloroform （MAC） and CS2：N-methyl-2-pyrrolidinone （CSz/NMP）. The total amounts of the two types of soluble organic matter from some immature source rocks are 〉830 mg/g TOC, more than 63% of the total organic matter in these samples. This result indicates that the majority of the organic matter in the immature source rocks in the brackish to saline lake basin is soluble, and is significant for study of petroleum formation and helpful for petroleum exploration in the brackish to saline lake basin.
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| 关 键 词： | 盐湖 岩石 甲醇 丙酮 溶解能力 |
| 收稿时间： | October 9,2004 |
| 修稿时间： | October 9,2004 |
Quantification and implications of two types of soluble organic matter from brackish to saline lake source rocks |
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| SONG Yitao LIAO Yongsheng ZHANG Shouchun.Quantification and implications of two types of soluble organic matter from brackish to saline lake source rocks[J].Chinese Science Bulletin,2005,50(14):1490-1494. |
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| Authors: | Email author" target="_blank">Yitao?SongEmail author Yongsheng?Liao Shouchun?Zhang |
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| Institution: | (1) Geological Scientific Research Institute of Shengli Oilfield, 257015 Dongying, China |
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| Abstract: | Two types of soluble organic matter, the free and adsorbed, were obtained and quantified from the brack- ish to saline lake source rocks. The adsorbed type was ex- tracted with chloroform, solvent mixtures of methanol: acetone:chloroform (MAC) and CS2:N-methyl-2-pyrroli- dinone (CS2/NMP). The total amounts of the two types of soluble organic matter from some immature source rocks are >830 mg/g TOC, more than 63% of the total organic matter in these samples. This result indicates that the majority of the organic matter in the immature source rocks in the brackish to saline lake basin is soluble, and is significant for study of petroleum formation and helpful for petroleum exploration in the brackish to saline lake basin. |
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| Keywords: | brackish to saline lake source rocks free soluble organic matter adsorbed soluble organic matter CS2/NMP |
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