摘要
宁安盆地是一个开始早期油气勘探的盆地,本文首次利用孢粉地球化学研究方法,对该盆地穆棱组的生油指标进行了研究和评价。通过孢粉分析资料的研究,得出穆棱组下部一至三段具有一定的生油能力,有机质丰度较高,一至三级的样品约占64.6％;类型较好,Ⅱ1和Ⅱ2干酪根的样品约占40.0％;成熟度高,孢粉颜色指数均为2.5～4.5,全部进入生油门限,表明宁安盆地具有一定的油气勘探前景。
Ningan basin in Heilongjiang province is one of the earliest hydrocarbon exploration basins. The genetic index for oil of Muling Formation of the basin is studied and evaluatd, firstly using the research method of pollen geochemistry. The data of pollen analysis shows that the first and the third members of the lower Muling Formation has genetic potential for oil, with a higher abundance of organic matter and 64.6% are of the first and the third class samples. The types of kerogen are better, the samples of type II1 and II2 kerogen are about 40% and their maturaition is high, and the color indexes of the Pollen ranges from 2.5-4.5, which had reached into the threshold of oil generation, showong that Ningan basin is a prospective hydroca-bon area.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1992年第1期21-25,共5页
Petroleum Geology & Oilfield Development in Daqing
关键词
宁安盆地
穆棱组
孢粉
地球化学
Ningan basin, Muling Formation, Pollen, Chemical analysis, Genetic index for oil, Evaluation
