|本期目录/Table of Contents|

[1]王志峰,包建平.柴北缘冷湖构造带与马北油田原油地球化学特征对比[J].地球科学与环境学报,2017,39(05):683-694.
　WANG Zhi-feng,BAO Jian-ping.Comparisons of Geochemical Characteristics of Crude Oils from Lenghu Structure Zone and Mabei Oilfield in the Northern Qaidam Basin[J].Journal of Earth Sciences and Environment,2017,39(05):683-694.
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柴北缘冷湖构造带与马北油田原油地球化学特征对比(PDF)
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《地球科学与环境学报》[ISSN:1672-6561/CN:61-1423/P]

卷:
第39卷
期数:
2017年第05期
页码:
683-694
栏目:
基础地质与矿产地质
出版日期:
2017-09-15

文章信息/Info

Title:
Comparisons of Geochemical Characteristics of Crude Oils from Lenghu Structure Zone and Mabei Oilfield in the Northern Qaidam Basin
文章编号:
1672-6561(2017)05-0683-12
作者:
王志峰; 包建平
1.长江大学 油气资源与勘探技术教育部重点实验室，湖北 武汉 430100；2.长江大学 资源与环境学院，湖北 武汉 430100
Author(s):
WANG Zhi-feng;  BAO Jian-ping
1. Key Laboratory of Exploration Technologies for Oil and Gas Resources of Ministry of Education, Yangtze University, Wuhan 430100, Hubei, China; 2. College of Resources and Environment, Yangtze University, Wuhan 430100, Hubei, China
关键词:
生物标志物; 姥植比; 萜烷; 甾烷; 伽马蜡烷; 原油对比; 侏罗系; 柴达木盆地
Keywords:
biomarker;  Pr/Ph;  terpane;  sterane;  gammacerane;  crude oil correlation;  Jurassic;  Qaidam Basin
分类号:
P618.13；TE122
DOI:
-
文献标志码:
A
摘要:
通过对冷湖构造带和马北油田26个原油样品中生物标志物分布与组成特征的系统分析，发现马北油田原油中姥植比(低于2.0)相对偏低，伽马蜡烷指数(0.10~0.20)相对偏高，甾烷组成中明显富含指示藻类贡献的C27甾烷，且重排甾烷含量中等，它们与附近凹陷发育的中侏罗统湖相泥岩中的生物标志物分布与组成特征基本一致，显示它们之间存在成因联系；而冷湖构造带原油中姥植比(2.0~2.5)相对偏高，伽马蜡烷指数(低于0.05)相对偏低，明显富含指示陆源有机质贡献的C29甾烷，且重排甾烷含量相对丰富，这一系列特征均明显有别于马北油田原油，而与冷湖地区发育的下侏罗统湖相泥岩中的生物标志物分布与组成特征相吻合，表明该地区发育的下侏罗统湖相泥岩是其主力烃源岩。
Abstract:
The distributions and compositions of biomarkers of 26 samples of crude oils from Lenghu structure zone and Mabei oilfield in the northern Qaidam Basin were analyzed.
The results show that the crude oil from Mabei oilfield is characterized by relatively lower Pr/Ph (<2.0) and higher gammacerane index (0.10~0.20), and rich in C27 steranes relative to C29 steranes together with elevated diasteranes, suggesting that the oil should be derived from Middle Jurassic lacustrine mudstones in adjacent hydrocarbongenerating sag; however, for the crude oil from Lenghu structure zone, the Pr/Ph (2.0~2.5) is relatively higher, and gammacerane index (<0.05) is lower, and C29 steranes surpass C27 homologues. These characteristics might reveal that they are generated by lower Jurassic lacustrine mudstones.

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备注/Memo

备注/Memo:
收稿日期:2017-08-08
基金项目:国家科技重大专项项目(2011ZX05004-004)
作者简介:茆书巍(1986-),男,安徽巢湖人,理学博士研究生,E-mail:maow100@163.com。
通讯作者:鲍志东(1964-),男,安徽巢湖人,教授,博士研究生导师,理学博士,E-mail:baozhd@cup.edu.cn。
更新日期/Last Update: 2017-10-19