高邮凹陷赤岸油田原油芳烃地球化学特征研究  

Geochemical characteristics of aromatic hydrocarbon of crude oil from Chi'an Oilfield in Gaoyou Sag

作　　者：王骏[1] 白俊[1] 李兴丽[1] 刘平兰[1] 王兵杰[1] 

机构地区：[1]中国石化江苏油田分公司勘探开发研究院,扬州江苏225009

出　　处：《复杂油气藏》2015年第4期23-26,30,共5页Complex Hydrocarbon Reservoirs

基　　金：江苏油田分公司(JS12002)

摘　　要：对高邮凹陷赤岸油田采集的30个原油样品的芳烃组成进行了系统的研究。其分布特征和相对含量表明,原油母质具明显的低等藻类输入特征,沉积环境以咸化还原环境为主,根据萘系列、菲系列、二苯并噻吩系列化合物的相对含量分布差异,优选出三甲基萘比值(1,2,5-/1,3,6-TMN)以及五甲基萘比值(1,2,3,5,6-/1,2,3,6,7-PMN)等成熟度指标,综合分析了赤岸油田原油成熟度特征,总体属于低熟—成熟原油。同时,采用1,2,5-/1,3,6-TMN和1,2,3,5,6-/1,2,3,6,7-PMN成熟度参数探讨了赤岸油田油气运移规律,结果显示赤岸油田油气运移方向主要为近似东西向的运移方向。The aromatic compound characteristics of 30 crude oil samples collected from Chi＇ an Oilfield of Gaoyou Sag was researched. The distribution and relative content of the aromatic fraction indicated an oxidizing type of depositional en- vironment,with a notable lower algae input. Alkyl - naphthalene, alkyl - phenanthrene and alkyl - dibenzothiophen, two optimal parameters of 1,2,5 -/1,3,6 - TMN and 1,2,3,5,6 -/1,2,3,6,7 - PMN were founded to assess the maturity characteristics of crude oil from Chi＇ an Oilfield. The crude oil shows characteristics of low maturity - mature oil . At the same time, oil and gas migration in Chi＇ an oilfield was discussed using the maturity parameters. The results displayed that the oil and gas migration in Chi＇ an Oilfield is approximately east- west migration direction.

关 键 词：芳烃 地球化学特征 原油成熟度 油气运移 赤岸油田 

分 类 号：TE122.13[石油与天然气工程—油气勘探]