乍得Bonger盆地南部凹陷Delo-1井烃源岩评价

Source Rock Evaluation of Well Delo-1 in the Southern Sag of Bonger Basin in Chad

基于有机碳、热解等地化资料，从有机质丰度、类型及成熟度3个方面对乍得Bonger盆地南部凹陷Delo-1井进行烃源岩评价。研究表明：Delo-1井烃源岩暗色泥岩厚度大，有机质丰度高，各层位都达到中等-好烃源岩标准，部分达到最好烃源岩标准；有机质类型主要为I～Ⅱ，型，Kubla组部分为Ⅱ。型；有机质演化处于低熟-成熟演化阶段，其中Baobab组、Ronier组主要处于低熟-成熟演化阶段，Kubla组处于成熟演化阶段，随着深度的增加，成熟度增加。

Based on geochemical data of organic carbon content and pyrolysis etc,the source rocks of Well Delo-1in the southern sag of Bonger Basin were evaluated from abundance and maturity of the organic matter.The results show that the dark mudstones in source rocks of Well Delo-1are thicker,the organic matter abundance is high and each zone reaches the standard of mid-good source rocks,some reach the excellent standard.The organic type is mainly PypeⅠ-Ⅱ1 and some of the Kubla Formation are PypeⅡ2,the organic matter evolution is at low mature-mature stage,Baobab Formation and Ronier Formation are at low mature stage and Kubla Formation is at mature stage.With the increase of depth,the maturity increases.