| 柴达木盆地西部红狮凹陷第三系下干柴沟组沉积相分析 |
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| 引用本文： | 蒋宏忱,于炳松,王黎栋,穆剑,刘忠宝.柴达木盆地西部红狮凹陷第三系下干柴沟组沉积相分析[J].沉积学报,2003,21(3):391-397. |
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| 作者姓名： | 蒋宏忱 于炳松 王黎栋 穆剑 刘忠宝 |
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| 作者单位： | 中国地质大学 北京 100083 |
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| 基金项目： | 国家重大基础发展规划项目 (G1 9990 4 330 4、2 0 0 1CB2 0 91 0 4 )，青海石油公司资助 |
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| 摘 要： | 在层序地层学研究的基础上,对柴达木盆地红狮凹陷第三系下干柴沟组进行了详细的沉积相研究,分析了下干柴沟组发育的冲积扇相、河流相、三角洲相、扇三角洲相、湖泊相、湖底扇相等几种类型沉积相特征。并按识别出的 4个超层序,详细分析了沉积相的平面展布特征。强调了这四个超层序中上升半旋回低水位期湖底扇、辫状河流相砂砾岩和下降半旋回高水位期辫状河三角洲、扇三角洲相砂砾岩是红狮凹陷下干柴沟组有利的储集岩相带。根据生油岩及储油岩叠置组合关系,指出阿拉尔以东方向的辫状河流相和辫状河三角洲相、小红山-阿哈提南东方向的扇三角洲相、狮子沟-干柴沟一带的湖底扇相是红狮凹陷下干柴沟组有利油气聚集区带。
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| 关 键 词： | 下干柴沟组 沉积相特征 柴达木盆地 |
| 文章编号： | 1000-0550(2003)03-0391-07 |
| 收稿时间： | 2002-05-31 |
| 修稿时间： | 2002年5月31日 |
Analysis on Depositional Facies of the Lower Ganchaigou Formation in Hongliuquan-Shizigou Area,Western Qaidam Basin |
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| JIANG Hong-chen YU Bing-song WANG Li-dong MU Jian,LIU Zhong-bao.Analysis on Depositional Facies of the Lower Ganchaigou Formation in Hongliuquan-Shizigou Area,Western Qaidam Basin[J].Acta Sedimentologica Sinica,2003,21(3):391-397. |
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| Authors: | JIANG Hong-chen YU Bing-song WANG Li-dong MU Jian LIU Zhong-bao |
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| Institution: | China University of Geoscience, Beijing 100083 |
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| Abstract: | Based on sequence stratigraphic research, depositional facies of the Lower Ganch aigou Formation have been studied carefully. It comprises alluvial-fan facies, braided stream facies, braided delta facies, fan-delta facies, lacustrine fac ies, and lacustrine floor fan facies, etc. In the 4 super-sequences identified, the distributions of depositional facies are discussed. According to the facies tracts, it can be concluded that the favorable reservoir facies are the lacustr ine floor fan in Shizigou area, the braided stream and braided delta in Araer ar ea, and the fan delta front in Ahati area. |
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| Keywords: | depositional facies Lower Ganchaigou Formation Qaidam |
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