Further evaluation of source rocks in eastern Tarim Basin
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摘要: 通过对塔里木盆地东部钻井烃源岩的有机质丰度、有机质类型和有机质成熟度等有机地化参数分析,认为中下寒武统烃源岩是本区最有利的烃源岩,有机质丰度高(平均TOC一般大于1.0%),有机质类型好(Ⅰ-Ⅱ1型),有机质成熟度总体较高(Ro为0.88%~2.75%),基本达到了高成熟—过成熟阶段.Abstract: The studies of organic abundance, type and maturity of source rocks from wells in the eastern Tarim Basin showed that the Middle-Lower Cambrian source rocks were the most favorable source rocks in the study area. The organic abundance was high, with the average TOC content higher than 1.0%. The organic type was good, generally type Ⅰ-Ⅱ1. The organic maturity was high, with Ro ranging from 0.88% to 2.75%, indicating for high-mature and over-mature stages.
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Key words:
- source rocks /
- organic geochemical parameters /
- organic abundance /
- eastern Tarim Basin
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