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| 塔里木盆地YN2井储层沥青的地球化学特征及成因分析 | |
| 引用本文： | 杨永才,张枝焕,常象春,李伟,梅玲.塔里木盆地YN2井储层沥青的地球化学特征及成因分析[J].矿物岩石,2006,26(2):92-96. |
| 作者姓名： | 杨永才 张枝焕 常象春 李伟 梅玲 |
| 作者单位： | 1. 中国石油大学石油天然气成藏机理教育部重点实验室,北京,102249 2. 山东科技大学,山东,青岛,266510 3. 中国石油化工国际勘探开发公司,北京,100083 |
| 基金项目： | 国家重点基础研究(973)发展计划项目(编号:2003CB214608) |
| 摘 要： | 塔里木盆地东北部英吉苏凹陷YN 2井侏罗系、志留系储层分布有固体沥青,通过对此固体沥青的地球化学特征进行分析,并根据生物标志物组合特征,进行储层固体沥青-烃源岩中抽提物组成特征的地球化学对比研究,结果表明:YN 2井侏罗系、志留系储层沥青属于混合成因的固体沥青,主要由古油藏石油热蚀变作用造成的,并遭受了一定程度的生物降解;其正构烷烃呈双峰型前峰态或前峰型分布,主峰碳主要为nC16,饱和烃色谱基线下存在未分辨的复杂混合物。伽马蜡烷含量较高,ααα20R甾烷C27,C28,C29呈V型分布,ααα20R甾烷C27含量大于ααα20R甾烷C29为主。在m/z177色质谱图存在25-降藿烷。表明YN 2井的储层沥青遭受了生物降解。 |
| 关 键 词： | 储层固体沥青 地球化学特征 储层沥青-烃源岩对比 |
| 文章编号： | 1001-6872（2006）02-0092-05 |
| 收稿时间： | 2006-01-20 |
| 修稿时间： | 2006-05-17 |
GEOCHEMICAL CHARACTERISTICS OF SOLID BITUMEN IN YN2 WELL IN TARIM BASIN AND ITS GENETIC ANALYSIS |
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| YANG Yong-cai,ZHANG Zhi-huan,CHANG Xiang-chun,LI Wei,MEI Ling.GEOCHEMICAL CHARACTERISTICS OF SOLID BITUMEN IN YN2 WELL IN TARIM BASIN AND ITS GENETIC ANALYSIS[J].Journal of Mineralogy and Petrology,2006,26(2):92-96. | |
| Authors: | YANG Yong-cai ZHANG Zhi-huan CHANG Xiang-chun LI Wei MEI Ling |
| Abstract: | Reservoir solid bitumens were discovered in Jurassic and Silurian in YN2 well in Yingjisu Sag,northeast Tarim Basin.Geochemical characteristics of reservoir bitumens were analyzed and the extracts correlations between reservoir bitumen and source rocks were demonstrated by application of biological markers.The origin of reservoir bitumen were studied based on biomarker parameters and regional geological characteristics.Research shows that reservoir solid bitumens in Jurassic and Silurian in YN2 well were hybrid solid bitumen,mainly derived from thermal alteration and biodegradation of pre-existing liquid hydrocarbon in the paleo-oil-accumulation. |
| Keywords: | reservoir solid bitumen geochemical characterization reservoir bitumen-source rocks correlation |
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