摘要
研究表明,柴达木盆地台南地区烃源岩热演化程度较低,主要处于未熟—低熟阶段,以C30生物藿烷的检出为低成熟度的特征标志物。母质来源以陆源高等植物为主,也有低等水生生物的贡献,形成于淡水—微咸水的还原湖相环境,成烃环境微生物发育。综合考虑有机质丰度、类型、成熟度、沉积环境、微生物发育情况,结合生物气的生成条件,认为500m^1000m和1750~2750m为生物气有利的产气层位。
The results show that samples of the well stay in immature-low mature stage. The C30 nosesquiterpanes is indicator which reflects organic matters with low maturity. Lower aquatic organisms mixed with higher terrigenous plants are proven to be the organic material of hydrocarbon source rocks. Source rocks are developed in afresh-brackish water and reductive lacustrine environment. Considering the organic matter abundance, type, maturity, sedimentary environment, microbial growth, combined with the conditions of biogas generation, 500m-1000m and 1750~2750m were the favorable layer for the biogas generation.
出处
《当代化工研究》
2016年第10期149-150,共2页
Modern Chemical Research
