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| 鄂尔多斯盆地中西部马家沟组碳酸盐岩不同沉积相有机地球化学特征 | |
| 引用本文： | 陈建平,张爱云,丁同福. 鄂尔多斯盆地中西部马家沟组碳酸盐岩不同沉积相有机地球化学特征[J]. 新疆石油天然气, 2003, 15(3): 1-4 |
| 作者姓名： | 陈建平 张爱云 丁同福 |
| 作者单位： | 1. 石油大学资源与信息学院,北京,100022；胜利油田新疆勘探公司,257022 2. 中国地质大学能源系,北京,100083 3. 淮南矿物局地质勘探处,232001 |
| 摘 要： | 鄂尔多斯盆地中西部马家沟组浅水碳酸盐沉积体系可分为滩相、开阔台地相、局限台地相和蒸发台地相等四个相带 ;本文主要讨论了该地区不同相带的有机质丰度、可溶有机质族组成及其生物标志化合物特征。研究表明 ,局限台地相有机质丰度相对较高 ,富含饱和烃和芳烃 ,正构烷烃轻组分含量相对较高 ;滩相有机质丰度相对较低 ,富含非烃和沥青质 ,正构烷烃重组分含量相对较高。这与局限台地相有利于有机质保存的水动力条件和烃类运移有关。研究表明局限台地相生烃潜力较高 ,是油气源岩良好的分布区 ,而滩相为颗粒灰岩 ,孔隙发育 ,非烃和沥青质所占比重较大 ,是良好的储集带 |
| 关 键 词： | 有机地化 沉积相 生物标志化合物 碳酸盐岩 鄂尔多斯盆地 |
| 文章编号： | 1009-0207(2003)03-0001-04 |
| 修稿时间： | 2003-04-04 |
ORGANIC GEOCHEMICAL CHARACTERISTICS OF ORDOVICIAN MAJIAGOU FORMATION CARBONATE ROCKS OF DIFFERENT FACIES IN THE MIDDLE AND WESTERN ORDOS |
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| CHEN Jian pin,ZHANG Ai yu,DING Tong fu.Resources and Information Institute,Petroleum University, BeiJing,China. ORGANIC GEOCHEMICAL CHARACTERISTICS OF ORDOVICIAN MAJIAGOU FORMATION CARBONATE ROCKS OF DIFFERENT FACIES IN THE MIDDLE AND WESTERN ORDOS[J]. Xinjiang Oil & Gas, 2003, 15(3): 1-4 | |
| Authors: | CHEN Jian pin ZHANG Ai yu DING Tong fu.Resources Information Institute Petroleum University BeiJing China |
| Affiliation: | CHEN Jian pin,ZHANG Ai yu,DING Tong fu.Resources and Information Institute,Petroleum University,100022 BeiJing,China |
| Abstract: | Sedimentary system of early Ordovician shallow carbonate in middle-western area of Ordos basin may be classified into beach facies, open platform facies, restricted platform facies and evaporated platform facies. This paper had made analyses on abundance of organic matter, group composition of chloroform bitumen (A+C), characteristics of saturated hydrocarbons gas chromatography of different environment. It is found that organic matter in restricted platform facies has rich abundance of organic matter and has rich saturated hydrocarbons and aromatic hydrocarbons, organic matter in beach facies is on the contrary. Finally based on the study of the characteristics of organic geochemistry in the middle-western part of Ordos basin, it has been preliminarily concluded that carbonate rock on restricted platform facies is better oil source beds. |
| Keywords: | Orgainc geochemistry carbonate rock Biomarker Organic matter content Sedimentary facies Ordos basin |
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