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| 三塘湖盆地马东地区卡拉岗组烃源岩特征与致密油意义 | |
| 引用本文： | 殷越,贾鹏飞,黄志龙,吴红烛,金希,刘国杰.三塘湖盆地马东地区卡拉岗组烃源岩特征与致密油意义[J].吉林大学学报(地球科学版),2022,52(1):26-37. |
| 作者姓名： | 殷越 贾鹏飞 黄志龙 吴红烛 金希 刘国杰 |
| 作者单位： | １．中国石化西南油气分公司勘探开发研究院,成都 ６１００４１ ２．中国石油大学油气资源与探测国家重点实验室,北京 １０２２４９ ３．中国石化西南油气分公司彭州气田(海相)开发项目部,成都 ６１００４１ ４．浙江省地球物理地球化学勘查院,杭州 ３１００００ |
| 摘 要： | 凝灰岩致密油藏作为一种特殊的油藏类型,已受到高度关注,而烃源岩的质量对致密油藏形成起着至关重要的作用.为了研究新疆三塘湖盆地马朗凹陷石炭系火山岩油气藏成藏规律,本文在基本地质特征研究的基础上,通过岩石样品的岩石热解、干酪根碳同位素和饱和烃色质谱等分析测试,对马东地区卡拉岗组不同岩性烃源岩特征进行描述与评价.研究结果表明:凝灰质泥岩和白云质泥岩均具有一定生烃潜力,其中凝灰质泥岩生烃潜力大,有机质丰度高,总有机碳质量分数平均值大于２％,以Ⅱ型有机质为主;卡拉岗组烃源岩埋藏深度较小,镜质体反射率主要分布在０．５％~０．８％,总体上处于低熟—成熟阶段.纵向上各种岩性烃源岩与凝灰岩交错叠置,有利于形成源内自生自储型油藏,对卡拉岗组致密凝灰岩油藏的形成具有重要意义. |
| 关 键 词： | 烃源岩评价 有机地球化学特征 致密油 三塘湖盆地 卡拉岗组 新疆 |
| 收稿时间： | 2021-02-18 |
Characteristics of Kalagang Formation Source Rock and Its Significance of Tight Oil Reservoir in Madong Area of Santanghu Basin,NW China |
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| Yin Yue,Jia Pengfei,Huang Zhilong,Wu Hongzhu,Jin Xi,Liu Guojie.Characteristics of Kalagang Formation Source Rock and Its Significance of Tight Oil Reservoir in Madong Area of Santanghu Basin,NW China[J].Journal of Jilin Unviersity:Earth Science Edition,2022,52(1):26-37. | |
| Authors: | Yin Yue Jia Pengfei Huang Zhilong Wu Hongzhu Jin Xi Liu Guojie |
| Institution: | １．ExplorationandProductionResearchInstitute,SouthwestOilandGasBranchofSINOPEC,Chengdu ６１００４１,China ２．StateKeyLaboratoryofPetroleum ResourceandProspecting,ChinaUniversityofPetroleum ,Beijing １０２２４９,China ３．DevelopmentProjectDepartmentofPengzhouGasField (Marine),SouthwestOilandGasBranchofSINOPEC, Chengdu ６１００４１,China ４．ZhejiangInstituteofGeophysicalandGeochemicalExploration,Hangzhou ３１００００,China |
| Abstract: | Tight tuff oil reservoirs, as a special lean oil type, have drawn great attention.The quality of source rocks plays a vital role in the formation of tight oil reservoir. In order to study the oil and gas accumulation law of the Carboniferous volcanic rock reservoir in the Malang Sag in the Santanghu basin in Xinjiang autonomous region,the authors described and evaluated the characteristics of source rock with various lithologies in the Kalagang Formation in Madong area throughthe experiments including rock pyrolysis, kerogen carbon isotope, and GC-MS analysis of saturated hydrocarbon. The results showed that both the tuffaceous mudstone and the dolomitic mudstone have certain hydrocarbon generation potential. The tuffaceous mudstone has greater hydrocarbon generation potential, which is characterized by high abundance of organic matter with TOC greater than 2%, mainly type II kerogen. The source rock is shallowly buried, and the vitrinite reflectance is mainly 0.5%-0.8%, which is in the low-mature stage. Longitudinally, source rocks of different lithologies are alternately superimposed, which is conducive to the formation of self-generated and self-stored reservoirs, and it is of great significance to the formation of tight tuff reservoirs in the Kalagang Formation. |
| Keywords: | source rock evaluation geochemical characteristics tight oil Santanghu basin Kalagang Formation Xinjiang |
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