南祁连盆地哈拉湖凹陷中三叠统大加连组烃源岩评价  

Evaluation of Hydrocarbon Source Rock of the Middle Triassic Dajialian Formation of Halahu Depression in South Qilian Basin

作　　者：朱晓莉[1] 吴磊章[1] 赵军辉[1] 

机构地区：[1]西北大学地质学系,陕西西安710069

出　　处：《地下水》2013年第1期119-121,共3页Ground water

基　　金：国家重点基础研究发展基金资助项目(2003CB214601)

摘　　要：南祁连盆地哈拉湖坳陷中三叠统的大加连组广泛发育有碳酸盐岩类烃源岩。通过野外剖面样品的采集,并且运用有机碳测试、干酪根分析、岩石热解及饱和烃气相色谱技术进行室内样品测试,综合评价研究区碳酸盐岩露头样品的有机质丰度、类型及其成熟度。研究结果表明:大加连组烃源岩有机质丰度差,有机质类型主要为Ⅲ型,有机质达到成熟-高成熟阶段;综合评价为差等烃源岩。The hydrocarbon source rock of the middle triassic dajialian formation carbonate rock widely distribute in South Qilian Basin of Halahu Depression. Through collected the outcrop samples and use of organic carbon test, analysis of kerogen, rock pyrolysis and gas chromatography of saturated hydrocarbon for indoor sample test, the article discusses organic matter a- bundance, type and maturity of outcrop carbonate samples of dajialian formation in the studied area. The results show that the organic matter abundance is medium, the organic matter type is Ⅱ2, and the organic matter maturity has reached mature to high mature stage. It is finally eveluated as poor hydrocarbon source rock.

关 键 词：南祁连盆地 哈拉湖坳陷 大加连组 碳酸盐岩 烃源岩 

分 类 号：P618.130.2[天文地球—矿床学]