基于随机介质正演模拟的塔中顺南地区风化壳储层地震响应特征分析
摘要
针对塔中顺南地区奥陶系岩溶风化壳储层地震响应特征识别和储层预测难题,应用随机介质建模方法建立了风化壳缝洞型储层地震地质模型,通过非均匀介质波动方程数值模拟,研究目标储层地震反射波场的运动学和动力学特征,定量分析了储层物性、厚度及其发育位置变化对风化壳反射界面(T47)地震响应特征的影响。结果表明,当风化壳顶部发育储层时,风化壳反射界面表现为低反射振幅、低频率的地震响应特征。在此基础上优选并验证了对风化壳储层地震响应特征识别相对敏感的均方根振幅和瞬时频率属性,为研究区风化壳缝洞型储层反射特征识别及储层预测提供了一定依据。
引文
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[2]张雄,石玉,顾汉明.正演模拟技术在塔河油田于奇地区的应用[J].石油天然气学报,2011,33(4):82-87Zhang X,Shi Y,Gu H M.Application of forwardmodeling technology in Yuqi area of Tahe oilfield[J].Journal of Oil and Gas Technology,2011,33(4):82-87
[3]姚姚,奚先.区域多尺度随机介质模型及其波场分析[J].石油物探,2004,43(1):1-7Yao Y,Xi X.Regionalized multi-scale random medi-um model and its wavefield analysis[J].GeophysicalProspecting for Petroleum,2004,43(1):1-7
[4]刘春园,朱生旺,魏修成,等.随机介质地震波正演模拟在碳酸盐储层预测中的应用[J].石油物探,2010,49(2):133-139Liu C Y,Zhu S W,Wei X C,et al.Application ofseismic wave forward modeling in random media forcarbonate reservoir prediction[J].Geophysical Pros-pecting for Petroleum,2010,49(2):133-139
[5]赵迎月,顾汉明,李宗杰,等.塔中地区奥陶系典型地震体地震识别模式[J].吉林大学学报(地球科学版),2010,40(6):1262-1270Zhao Y Y,Gu H M,Li Z J,et al.The seismic wavefield recognition mode of typical geological bodies inthe Ordovician in Tazhong area[J].Journal of JilinUniversity(Earth Seismic Edition),2010,40(6):1262-1270
[6]张旭光.玉北地区碳酸盐岩储层地震响应特征研究[J].石油物探,2012,51(5):493-500Zhang X G.Study on seismic response characteris-tics of carbonate reservoir in Yubei area[J].Geo-physical prospecting for petroleum,2012,51(5):493-500
[7]奚先,姚姚.随机介质模型的模拟与混合型随机介质[J].地球科学———中国地质大学学报,2002,27(1):67-71Xi X,Yao Y.Simulations of random medium modeland intermixed random medium[J].Earth Science(Journal of China University of Geosciences),2002,27(1):67-71
[8]Ikelle L,Yung S,Daube F.2-D random media withellipsoidal autocorrelation function[J].Geophysics,1993,58(9):1359-1372
[9]奚先,姚姚,顾汉明.随机溶洞介质模型及其波场模拟[J].地球物理学进展,2005,20(2):365-369Xi X,Yao Y,Gu H M.Random cavity medium mod-el and the wave field simulation[J].Progress in Geo-physics,2005,20(2):365-369
[10]奚先,姚姚,顾汉明.随机溶洞介质模型的构造[J].华中科技大学学报(自然科学版),2005,33(9):105-108Xi X,Yao Y,Gu H M.Simulations of random cavemedium model[J].Journal of Huazhong Universityof Science and Technology(Natural Science Edi-tion),2005,33(9):105-108
[11]姚姚,唐文榜.深层碳酸盐岩岩溶风化壳洞缝型油气藏可检测性的理论研究[J].石油地球物理勘探2003,38(6):623-629Yao Y,Tang W B.Theoretical study of detectablecavern-fractured reservoir in weathered karst of deepcarbonatite[J].Oil Geophysical Prospecting,2003,38(6):623-629
[12]李国平,程利敏,孟令媛,等.非均匀介质交错网格高阶差分地震波数值模拟[J].石油天然气学报,2010,32(4):220-224Li G P,Cheng L M,Meng L Y,et al.High-orderstaggered grid difference seismic wave simulation inheterogeneous media[J].Journal of Oil and GasTechnology,2010,32(4):220-224
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