| 渤南洼陷下第三系沙四段扇三角洲沉积特征 |
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| 引用本文： | 庞锦莲,罗顺社,高振中,彭德堂,李维锋.渤南洼陷下第三系沙四段扇三角洲沉积特征[J].油气地质与采收率,2004,11(1):7-8,11. |
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| 作者姓名： | 庞锦莲 罗顺社 高振中 彭德堂 李维锋 |
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| 作者单位： | 长江大学地球科学系 |
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| 摘 要： | 在岩心观察的基础上，从单井沉积相的分析入手，并结合钻井岩性剖面、沉积构造和电性特征等大量地质资料，详细分析了渤南洼陷下第三系沙四段沉积相类型、特征及其展布；认为该区沙四段下亚段发育有扇三角洲沉积，可划分为扇三角洲平原、扇三角洲前缘和前扇三角洲三个亚相，以及泥石流沉积、扇面河道沉积、漫流沉积、碎屑流沉积、水下分流河道沉积、河口砂坝、远砂坝、前三角洲泥等八种微相，并建立了沉积模式。
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| 关 键 词： | 沉积相 沉积模式 渤南洼陷 地质资料 断裂带 扇三角洲平原亚相 |
| 文章编号： | 1009-9603(2004)01-0007-02 |
Depositional feature of the fan delta from the fourth member of Shahejie Formation,Eogene in Bonan subsag |
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| Pang Jinlian,Luo Shunshe,Gao Zhenzhong et al..Depositional feature of the fan delta from the fourth member of Shahejie Formation,Eogene in Bonan subsag[J].Petroleum Geology and Recovery Efficiency,2004,11(1):7-8,11. |
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| Authors: | Pang Jinlian Luo Shunshe Gao Zhenzhong |
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| Abstract: | On the basis of core observation and large number of geological data of drill lithological profile, sedimentary structure,electric features and so on, the type, feature and distribution of the sedimentary facies in the fourth member of Shahejie Formation, Eogene in Bonan sub-sag are analyzed in detail from the analysis of single well sedimentary facies. It is considered that fan delta deposits developed in the lower of fourth member of Shahejie Formation in this area. It can be divided into 3 subfacies of fan delta -plain, fan delta -front and fan prodelta, and 8 microfacies of debris flow deposit, fan-channel deposit, sheetflood deposit, detrital flow deposit, subsea distributary channel deposit, channel mouth bar, far bar and predelta mud. Finally, the depositional model is established. |
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| Keywords: | fan delta sedimentary facies deposition- al model the fourth member of Shahejie Formation Bonan subsag |
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