| 乍得Bongor强反转裂谷盆地高酸值原油成因 |
| |
| 引用本文： | 程顶胜,窦立荣,肖坤叶,万仑坤,刘宝全.乍得Bongor强反转裂谷盆地高酸值原油成因[J].岩石学报,2014,30(3):789-800. |
| |
| 作者姓名： | 程顶胜 窦立荣 肖坤叶 万仑坤 刘宝全 |
| |
| 作者单位： | 中国石油勘探开发研究院, 北京 100083;中国石油天然气勘探开发公司, 北京 100034;中国石油勘探开发研究院, 北京 100083;中国石油勘探开发研究院, 北京 100083;大庆方兴油田开发有限责任公司, 大庆 163000 |
| |
| 基金项目： | 本文受国家油气重大专项项目（2011ZX0502901）和中国石油天然气集团公司科技专项项目（2013D0902）联合资助. |
| |
| 摘 要： | 乍得Bongor盆地是受中非剪切带影响发育起来的中、新生代陆内强反转裂谷盆地,反转和走滑构造是盆地最显著的构造特征。所发现的原油主要为中质油(重度为20°～34°API),其次为重质油(重度小于20°API),普遍高含沥青质、高含蜡、高酸值、低含硫。为了探讨高酸值原油的成因,作者选择了该盆地15个不同酸值的原油样品,尝试应用高分辨率质谱分析原油有机酸的组成。分析结果表明,高酸值原油的有机酸主要由环烷酸组成;环烷酸碳原子数分布范围较宽,且以一环、二环、三环环烷酸为主。生物降解作用是形成高酸值原油的主要原因,而构造反转造成盆地抬升,则加速了生物降解作用的发生。
|
| 关 键 词： | 高酸值原油 高分辨率质谱 生物降解作用 反转裂谷盆地 Bongor盆地 乍得 |
| 收稿时间： | 2013/10/1 0:00:00 |
| 修稿时间： | 2/2/2014 12:00:00 AM |
Origin of high acidity oils in the intensively inversed rift basin, Bongor Basin |
| |
| CHENG DingSheng,DOU LiRong,XIAO KunYe,WAN LunKun and LIU BaoQuan.Origin of high acidity oils in the intensively inversed rift basin, Bongor Basin[J].Acta Petrologica Sinica,2014,30(3):789-800. |
| |
| Authors: | CHENG DingSheng DOU LiRong XIAO KunYe WAN LunKun and LIU BaoQuan |
| |
| Institution: | Research Institute of Petroleum Exploration and Development, Petrochina, Beijing 100083, China;China National Oil and Gas Exploration and Development Corporation, Beijing 100034, China;Research Institute of Petroleum Exploration and Development, Petrochina, Beijing 100083, China;Research Institute of Petroleum Exploration and Development, Petrochina, Beijing 100083, China;Daqing Fangxin Oil field Development Co.Ltd, Daqing 163000, China |
| |
| Abstract: | Bongor Basin is a Meso-Cenozoic interior intensively inversed rift basin under the influence of the Central African Shear Zone (CASZ), which is essentially characterized by inversion and strike-slip structures. Crude oils produced from the basin display unusual high total acid number values (TAN, up to 8.3mgKOH/g oil) with high wax content and asphaltene. In order to probe the formation mechanism of high acid a total of 15 oils with different TANs were characterized for organic acids composition by electrospray ionization Fourier transform ion cyclotron resonance mass spectrometry. Results indicated that the organic acids are mainly naphthenic acid, dominating with mono-cyclic, bi-cyclic, tri-cyclic naphthenic acids. The formation of high TAN oils was attributed to biodegradation which has been promoted by the strong uplift and inversion stage in Late Cretaceous. |
| |
| Keywords: | High acidity oils ESI FT-ICR MS Biodegradation Inversed rift basin Bongor Basin Chad |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《岩石学报》浏览原始摘要信息 |
| 点击此处可从《岩石学报》下载免费的PDF全文 |
|
