摘要
南祁连盆地下日哈坳陷中三叠统大加连组碳酸盐岩类烃源岩广泛发育。通过野外剖面样品采集,并运用有机碳测试、干酪根分析、岩石热解以及饱和烃气相色谱技术进行室内样品测试,综合评价了研究区碳酸盐岩露头样品的有机质丰度、类型以及成熟度。结果表明:大加连组烃源岩有机质丰度中等,有机质类型主要为Ⅱ2型,有机质达到成熟-高成熟阶段。综合评价为差-中等烃源岩。
The hydrocarbon source rock of the middle triassic dajialian formation carbonate rock widely distribute in South Qilian Basin of Xiariha Depression.Through the outcrop samples collected and used of organic carbon test,kerogen analysis,rock pyrolysis and gas chromatography of saturated hydrocarbon for indoor sample test,the authors discussed organic matter abundance,type and maturity of outcrop carbonate samples of dajialian formation in the study area.The results show that the organic matter abundance is medium,the organic matter type isⅡ2,and the organic matter maturity has reached mature to high mature stage.It is finally eveluated as poor-medium hydrocarbon source rock.
出处
《地下水》
2012年第4期163-165,共3页
Ground water
基金
国家重大基础研究"973"项目"盆地系统内外地质动力相互作用与多种能源矿产形成的耦合关系"(2003CB214601)资助
关键词
南祁连盆地
下日哈坳陷
大加连组
碳酸盐岩
烃源岩
South Qilian Basin
Xiariha Depression
Dajialian Formation
Carbonate rock and Hydrocarbon source rock
