| 地下曲流河道单砂体内部薄夹层建筑结构研究方法 |
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| 引用本文： | 马世忠,孙雨,范广娟,郝兰英.地下曲流河道单砂体内部薄夹层建筑结构研究方法[J].沉积学报,2008,26(4):632-639. |
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| 作者姓名： | 马世忠 孙雨 范广娟 郝兰英 |
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| 作者单位： | 大庆石油学院地球科学学院,黑龙江大庆,163318;大庆油田有限责任公司第五采油厂,黑龙江大庆,163513 |
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| 基金项目： | 中国石油天然气股份有限公司资助项目 |
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| 摘 要： | 单砂体内部薄夹层因规模小、薄、不稳定、参数与分布难于确定等,致使覆盖盆地单砂体内部薄夹层及其建筑结构研究较少且难度很大,为此,本文以曲流河道沉积、建筑结构模式为指导，充分利用岩芯、测井、密井网等油田现有资料，提出了‘一整套地下曲流河道单砂体内部薄夹层建筑结构研究方法’，特别是以‘侧积泥、侧积面、废弃河道的识别、恢复、测算；河道几何学、河流工程参数计算；建筑结构理论模式为基础的‘单一侧积泥岩薄夹层建筑结构参数（倾角、倾向、规模）三类13种提取方法’及薄夹层分布密度与河道侧积轨迹研究技术,为这一难题的解决提供了可行的思路与方法。并以杏南油田PⅠ31b单元为靶区，应用该方法确定了曲流河道单砂体内部薄夹层及其建筑结构理论模式和研究区实际模式。
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| 关 键 词： | 覆盖盆地 曲流河道 单砂体 侧积体 层内非渗透薄夹层 储层建筑结构 |
| 收稿时间： | 1900-01-01 |
The Method for Studying Thin Interbed Architecture of Burial Meandering Channel Sandbody |
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| MA Shi-zhong,SUN Yu,FAN Guang-juan,HAO Lan-ying.The Method for Studying Thin Interbed Architecture of Burial Meandering Channel Sandbody[J].Acta Sedimentologica Sinica,2008,26(4):632-639. |
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| Authors: | MA Shi-zhong SUN Yu FAN Guang-juan HAO Lan-ying |
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| Institution: | Geoscience College,Daqing Petroleum Institute, Daqing Heilongjiang 163318 |
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| Abstract: | Because the interbeds in monosandbody usually are very narrow, thin, unstable, and hard to predict its attitude, scale, distribution, the researches on the underground thin interbed in monosandbody and its architecture are a few and very difficulty. This paper, taking the depositional model and architecture model of meandering channel as a guideline, fully using the core, log, closely well spacing and so on, puts forward the researching methods of thin interbed architecture of meandering channel sandbody in overburden basin, especially the three types and thirteen methods of extract architecture parameters (dip angle, dip, scale) about thin interbeds of lateral accretion mudstone, the researching methods of interbed density and lateral accretion orbit, basing on the distinguishing, restoring, measuring and calculating of lateral accretion mudstone, lateral accretion surface and abandoned channel, the calculation of the channel geometry and river engineering parameter and the theoretical model of channel sandbody architecture. To overcome this difficult problem provides feasible idea and method. Using these technique, establishes the theoretic and practical model of thin interbed architecture of meandering channel sandbody in PⅠ31b unit of Xingnan oilfield in Songliao Basin. |
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| Keywords: | overburden basin meandering channel monosandbody lateral accretion body intraformational impermeable thin interbed reservoir architecture |
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