| 塔里木盆地草湖地区油气成藏特征 |
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| 引用本文： | 张小兵,李仲东,宋荣彩,陈克勇.塔里木盆地草湖地区油气成藏特征[J].西安石油大学学报(自然科学版),2011,26(3). |
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| 作者姓名： | 张小兵 李仲东 宋荣彩 陈克勇 |
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| 作者单位： | 1. 成都理工大学沉积地质研究院,四川成都610059;成都理工大学能源学院,四川成都610059
2. 成都理工大学能源学院,四川成都,610059 |
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| 摘 要： | 通过对草湖地区构造、地层及成藏条件的研究认为,保存条件、圈源匹配关系、继承性的古隆起和古斜坡是该区油气成藏的三大主控因素.草湖地区油藏形成于海西期,天然气气藏形成于燕山末—喜山期,以垂向断裂和裂缝,以及横向不整合面和疏导砂体为运移通道.区内西斜坡储层直接与烃源岩接触,断层不发育,油气通过横向储层及少量垂向断层为运移通道向高部位地层、岩性圈闭中聚集,中下奥陶统、东河砂岩和三叠系均有油气成藏过程.凹陷的中心区域存在奥陶系上统泥岩和石炭系泥岩隔层,缺少风化壳型储层,但具备形成裂缝-孔隙性储层的条件.草湖地区东部中下奥陶统长期抬升,发育通天断层,生油高峰期仍处于暴露状态,无法成藏,生气高峰时缺乏有效的封盖层,难以形成规模性油气的聚集.
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| 关 键 词： | 塔里木盆地 草湖地区 油气成藏特征 |
Hydrocarbon pooling characteristics in Caohu area, Tarim Basin |
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| ZHANG Xiao-bing,LI Zhong-dong,SONG Rong-cai,CHEN Ke-yong.Hydrocarbon pooling characteristics in Caohu area, Tarim Basin[J].Journal of Xian Shiyou University,2011,26(3). |
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| Authors: | ZHANG Xiao-bing LI Zhong-dong SONG Rong-cai CHEN Ke-yong |
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| Institution: | ZHANG Xiao-bing1,2,LI Zhong-dong2,SONG Rong-cai2,CHEN Ke-yong2(1.Insititute of Sedimentary Geology,Chengdu University of Technology,Chengdu 610059,Sichuan,China,2.College of Energy Resources,China) |
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| Abstract: | According to the research of structure,strata and hydrocarbon accumulation conditions in Caohu area,it is held that the preservation conditions,the matching relation between hydrocarbon source and traps and the inherited paleo-uplift and slope are three major controlling factors of the hydrocarbon accumulation.The oil reservoir formed in Hercynian period,and the gas reservoir formed from end of Yanshanian to Himalayan period in the studied area.Oil and gas migrated along vertical faults and cracks,and horiz... |
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| Keywords: | Tarim Basin Caohu area hydrocarbon pool-forming characteristic |
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