松辽盆地红岗地区浅层气地球化学特征研究  

Geochemical characteristics of shallow gas in Honggang region,Songliao Basin

作　　者：景成杰[1,2] 牛世忠[2] 黄玉欣[2] 

机构地区：[1]中国地质大学(武汉)地球科学学院,武汉430074 [2]吉林油田分公司,吉林松原138001

出　　处：《石油实验地质》2012年第1期53-56,共4页Petroleum Geology & Experiment

基　　金：国家自然科学基金资助项目(40173023)

摘　　要：根据红岗地区7件明水组浅层气和13件嫩江组浅层气样品的组分和同位素分析,表明明水组浅层气甲烷含量、重烃含量、干燥系数、δ13C1均值分别为92.74%,1.77%,0.981,-56.7‰,而嫩江组浅层气甲烷含量、重烃含量、干燥系数、δ13C1均值分别为90.38%,5.57%,0.942,-52.1‰。明水组浅层气主要为生物气,而嫩江组浅层气属于生物—热催化过渡带气,都属于低熟油型气。The chemical and stable carbon isotopic compositions of 7 shallow gas samples from the Mingshui Formation and 13 shallow gas samples from the Nenjiang Formation in Honggang region have been tested.Results have indicated that the average values of CH4 content,C2＋ content,dry coefficient and δ13C1 of the Mingshui Formation are 92.74%,1.77%,0.981 and-56.7‰,respectively,while those of the Nenjiang Formation are 90.38%,5.57%,0.942 and-52.1‰,respectively.The shallow gas from the Mingshui Formation is biogas and that from the Nenjiang Formation is bio-thermocatalytic transitional gas.Both of them belong to low-mature oil-type gas.

关 键 词：地球化学特征 浅层气 红岗地区 松辽盆地 

分 类 号：TE133.1[石油与天然气工程—油气勘探]