| 济阳拗陷特殊生物降解油的初步研究 |
| |
| 引用本文： | 卢鸿,彭平安,徐兴友,张林晔.济阳拗陷特殊生物降解油的初步研究[J].沉积学报,2004,22(4):694-699. |
| |
| 作者姓名： | 卢鸿 彭平安 徐兴友 张林晔 |
| |
| 作者单位： | 中国科学院广州地球化学研究所,有机地球化学国家重点实验室,广州,510640;中国石油化工总公司,胜利油田地质研究院,山东东营,257015 |
| |
| 基金项目： | 中国科学院知识创新工程项目
,
国家重点基础研究发展计划(973计划) |
| |
| 摘 要： | 济阳拗陷草古100平19井奥陶系储层原油,饱和烃馏分均已损失殆尽,仅残余藿烷系列化合物;同时,芳烃馏分化合物也已损失殆尽,仅残余三芳甾烷系列化合物。上述芳烃化合物俱已损失殆尽的蚀变特征,在相关文献中的报道较为少见。原油中不受水洗作用影响的正构烷烃和不受生物降解作用影响的有机硫化合物(苯并噻吩和二苯并噻吩)均已损失殆尽,显然暗示了原油蚀变是遭受水洗作用和生物降解作用共同作用的结果。原油芳烃馏分的“UCM”鼓包幅度明显大于饱和烃馏分的“UCM”鼓包,暗示了芳烃化合物的降解速率平行甚至超过饱和烃的降解速率。原油中低分子量芳烃化合物的快速降解,暗示了油藏可能是在氧化条件下而非在还原条件下发生蚀变的。
|
| 关 键 词： | 济阳拗陷 生物降解 芳烃 降解速率 氧化条件 |
| 文章编号： | 1000-0550(2004)04-0694-06 |
| 收稿时间： | 2003-10-14 |
| 修稿时间： | 2003年10月14日 |
Preliminary Study on the Severely Biodegraded Crude Oil in Jiyang Depression, China |
| |
| LU Hong,PENG Ping an,XU Xing you,ZHANG Lin ye.Preliminary Study on the Severely Biodegraded Crude Oil in Jiyang Depression, China[J].Acta Sedimentologica Sinica,2004,22(4):694-699. |
| |
| Authors: | LU Hong PENG Ping an XU Xing you ZHANG Lin ye |
| |
| Institution: | 1.State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou 510640;2.Exploration and Development Research Institute, Shengli Oilfield, Dongying,Shandong 257015 |
| |
| Abstract: | For a crude oil sample from Ordovician reservoir in Well Caogu100 Ping 19 in Jiyang depression, Shengli Oilfield, North China, hydrocarbons except for tricyclic terpane, hopane and 25 norhopane homologues were completely depleted in saturated fraction, as well as hydrocarbons except for triaromatic steranes in the aromatic fraction, which indicate that severe biodegradation occurred in this reservoir. Completely depleted n alkanes unaltered by water washing and dibenzothiphenes resistant biodegradation in the oil sample implied apparently that the alteration occurred in this reservoir was associated with biodegradation together with water washing. The magnitude of "UCM" hump existed in the aromatic fraction is apparently larger than that of "UCM" hump existed in the saturated fraction, which implied that the biodegradation rate for aromatic hydrocarbons is parallel or even exceed that of the saturated hydrocarbons. The fast biodegradation of aromatic hydrocarbons with lower molecular weight, as well as the occurrence of abundant 25 norhopanes, indicates that the alteration occurred in the aerobic environment other than in the anaerobic condition. |
| |
| Keywords: | Jiyang depression biodegraded crude oil 25-norhopane aerobic biodegradation water washing |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
| 点击此处可从《沉积学报》浏览原始摘要信息 |
| 点击此处可从《沉积学报》下载免费的PDF全文 |
|
