收稿日期: 2012-08-21
修回日期: 2012-09-29
网络出版日期: 2013-02-10
基金资助
国家重点基础研究发展计划项目(编号:2007CB209500);中国石油科技创新基金(编号:2009D50060102);中国石油勘探开发研究院中青年创新基金(编号:2010-A-26-03)联合资助.
Geochemical Characteristics and Hydrocarbon Resource Potential of Dalong Formation Permian,Northeast Sichuan
Received date: 2012-08-21
Revised date: 2012-09-29
Online published: 2013-02-10
陈瑞银,朱光有,周文宝,李伟,胡国艺 . 川北地区大隆组烃源岩地球化学特征与生气潜力初探[J]. 天然气地球科学, 2013 , 24(1) : 99 -107 . DOI: 10.11764/j.issn.1672-1926.2013.01.99
The data of rock element and organic geochemistry confirm that a set of organic rich siliceous marine formation is distributed at the top of Permian in the northeast of Sichuan basin, whose thickness is 30 meters, and the sedimentary facies belongs to platform depression.The formation had type Ⅱ organic matter feature and the mean TOC and potential hydrocarbon ratio is 4.08% and 12.55mg/g, respectively, and the RO is 1.2%-2.0%.Thus, this formation can be cognized as excellent source sediment formation with oil yields(17.6-22.3)×104t/km2 and gas yields (1.65-1.98)×108m3/km2.Much more exploration attention should be paid to it.
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