| 渤南洼陷同沉积断裂构造坡折带对沉积的控制作用 |
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| 引用本文： | 张宇.渤南洼陷同沉积断裂构造坡折带对沉积的控制作用[J].西北大学学报,2010(5). |
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| 作者姓名： | 张宇 |
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| 作者单位： | 中国科学院广州地球物理化学研究所;中国石油化工股分有限公司胜利油田分公司; |
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| 基金项目： | 中国石油化工股份有限公司基金资助项目(P07002) |
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| 摘 要： | 目的研究渤南洼陷同沉积断裂构造坡折带及其对砂体沉积的控制作用,进而有效预测砂体的展布。方法依据地震资料及钻井地质资料,研究高精度四级层序地层格架,确定同沉积断层生长指数,并分析相关的砂体相带与展布特征,总结同沉积断裂构造坡折带的控砂模式。结果对砂体起控制作用的坡折断层的生长指数均在1.2以上,小于此数值时断层无法控制砂体沉积。同沉积断裂组合方式及动态演化过程形成了"斗"字形构造坡折带控砂模式。结论渤南洼陷同沉积构造坡折断层十分发育,在其发育演化过程中,影响了古地貌格局和物源供应,控制了沉积体系的发育和展布。
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| 关 键 词： | 同沉积构造 构造坡折带 坡折断层 渤南洼陷 |
The controlling role of syndepositional fault structural slope-break zone to depositional system in Bonan sub-sag |
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| ZHANG Yu.The controlling role of syndepositional fault structural slope-break zone to depositional system in Bonan sub-sag[J].Journal of Northwest University(Natural Science Edition),2010(5). |
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| Authors: | ZHANG Yu |
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| Institution: | ZHANG Yu1,2(1.Guangzhou Institute of Geochemistry,Chinese Academy of Sciences,Guangzhou 510640,China,2.Prospecting Department of Shengli Oilfield Company,SINOPEC,Dongying 257001,China) |
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| Abstract: | Aim To study the syndepositional structural slope-break faults which well developed in Bonan sub-sag,influenced paleogeomorphologic landscape and sediment source,controlled the developping and distributing of depositional systems.Methods In the fourth-order sequence stratigraphic framework of Bonan sub-sag,the combination pattern of structural slope-break zone and the controlling effects on the development and distribution of sub-lacustrine fan are analyzed precisely.Results The phenomenon with different st... |
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| Keywords: | syndepositional structures structural slope-break zone slope-break faults Bonan sub-sag |
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