正演模拟碳酸盐岩缝洞型储层反射特征
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摘要
建立缝洞型储层空间几何形态及岩石物理参数与地震响应之间的关系是碳酸盐岩缝洞型储层定量描述及油气预测的关键,而地震响应特征分析是以精确成像为前提。本文基于非均匀介质条件下波动方程正演模拟技术,研究了不同采集参数及成像方法对缝洞型储层产生的"串珠"状反射特征影响。正演模拟结果表明,减小道间距和近道叠加有利于缝洞体在地震剖面上反射能量的提高,叠前偏移成像是研究缝洞型储层必要处理手段。文中定量分析了缝洞型储层纵横向发育尺度、充填物类型及背景围岩因素对反射特征的影响,得到的结论对认识实际缝洞型储层反射特征提供了依据。
Establishing the relationship among seismic response with space geometry and petrophysical parameters of fracture-cavern reservoir is the key to quantitative description and prediction of carbonate fracture-cavern reservoirs,and seismic response characteristics analysis is a premise of accurate imaging.Based on the numerical simulation of heterogeneous media,we discuss impacts of different acquisition parameters and imaging approaches on bead-like reflection characteristics of fracturecavern reservoirs.Forward modeling results show that reflection energy in fracture-cavern body on seismic sections become stronger when smaller group interval and near offset stack are adopted,and that prestack migration imaging is a must for fracture-cavern reservoir analysis.In this paper,we analyze quantitatively influences of vertical scale,lateral scale,infilling types,and background factors on reflection characteristics of fracture-cavern reservoirs,and get some meaningful conclusions,which provide a scientific basis to understand reflection characteristics of actual fracture-cavern reservoirs.
引文
[1]黄绪宝,顾汉明.塔河油田南部缝洞储层的正演模拟及地震波场特征.石油与天然气地质,2007,28(6):836-840.Hu Xubao,Gu Hanming.Forward modeling and seismic wave field characteristics of fractured-vuggy reservoirs in the southern part of Tahe oilfield.Oil&Gas Geology,2007,28(6):836-840.
    [2]赵迎月,顾汉明,李宗杰等.Wigner-ville高阶时频谱及其在塔中奥陶系缝洞型储层预测中的应用.石油地球物理勘探,2010,45(5):688-694.Zhao Yingyue,Gu Hanming,Li Zongjie.Wigner-ville higher order time&frequency spectrum and its application in prediction of Ordovician fractured-vuggy reservoir in Tazhong Area.OGP,2010,45(5):688-694.
    [3]胡中平.溶洞地震波“串珠状”形成机理及识别方法.中国西部油气地质,2006,2(4):423-426.Hu Zhongping.Mechanism and distinction method for the seismic“string beads”characteristic.West China Petroleum Geosciences,2006,2(4):423-426.
    [4]吴俊峰,姚姚,撒利明.碳酸盐岩特殊孔洞型构造地震响应特征分析.石油地球物理勘探,2007,42(2):180-185.Wu Junfeng,Yao Yao,Sa Liming.Analysis on seismic response of special cavernous structure of carbonate.OGP,2007,42(2):180-185.
    [5]李凡异,魏建新,狄帮让等.碳酸盐岩溶洞的“串珠”状地震反射特征形成机理研究.石油地球物理勘探,2012,47(3):385-391.Li Fanyi,Wei Jianxin,Di Bangrang et al.Formation mechanism research for bead-like seismic reflection of carbonate caves.OGP,2012,47(3):385-391.
    [6]闵小刚,顾汉明,朱定.塔河油田孔洞模型的波动方程正演模拟.勘探地球物理进展,2006,29(3):187-191.Ming Xiaogang,Gu Hanming,Zhu Ding.Wave equation forward modeling of cavern models in Tahe oilfield.Progress in Exploration Geophysics,2006,29(3):187-191.
    [7]季敏,魏建新,王尚旭.孔洞物理模型数据的地震响应特征分析.石油地球物理勘探,2009,44(2):196-200.Ji Min,Wei Jianxin,Wang Shangxu.Analysis of seismic response of pore-cave physical model data.OGP,2009,44(2):196-200.
    [8]曲寿利,朱生旺,赵群等.碳酸盐岩孔洞型储集体地震反射特征分析.地球物理学报,2012,55(6):2053-2061.Qu Shouli,Zhu Shengwang,Zhao Qun et al.Analysis of seismic of reflection characters for carbonate Karst reservoir.Chinese Journal of Geophysics,2012,55(6):2053-2061.
    [9]胡中平,李宗杰,赵群.碳酸盐岩溶洞发育区高精度地震勘探效果.石油地球物理勘探,2008,43(1):83-87.Hu Zhongping,Li Zongjie,Zhao Qun.High-precision seismic exploration in carbonate Karst cave developed area.OGP,2008,43(1):83-87.
    [10]蔡成国,赵迎月,顾汉明.塔河油田三叠系储层地震正演模拟及应用研究.石油天然气学报,2008,30(3):92-94.Cai Chengguo,Zhao Yingyue,Gu Hanming.Research and application of seismic forward modeling of Triassic reservoir in the Tahe oilfield.Journal of Oil and Gas Technology,2008,30(3):92-94.
    [11]马灵伟,顾汉明,赵迎月等.应用随机介质正演模拟刻画深水区台缘礁碳酸盐岩储层.石油地球物理勘探,2013,48(4):583-590.Ma Lingwei,Gu Hanming,Zhao Yingyue et al.Sculpturing platform-edge reef carbonate reservoirs in deepwater with random media forward modeling.OGP,2013,48(4):583-590.

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